NEET Biology Excretory Products and their Elimination Question Bank

done Self Evaluation Test - Excretory Products and their Elimination Total Questions - 100

• question_answer1)
  Waste products of adenine and guanine metabolism are excreted by man as:
  A)
  Ammonia                                  done clear
  B)
  Urea done clear
  C)
  Uric acid        done clear
  D)
                     Allantois done clear
  View Solution play_arrow

• question_answer2)
  A man takes large amount of protein. He is likely to excrete more amount of:    
  A)
  Water            done clear
  B)
                     Glucose done clear
  C)
  Urea and uric acid                       done clear
  D)
  Salts done clear
  View Solution play_arrow

• question_answer3)
  Aquatic reptiles are:
  A)
  Ammonotelic                              done clear
  B)
  Ureotelic over land done clear
  C)
  Ureotelic                                    done clear
  D)
  Ureotelic in water done clear
  View Solution play_arrow

• question_answer4)
  In mammalian kidneys, Bowman's capsules or Malpighian corpuscles occur in:
  A)
  Cortex                                       done clear
  B)
  Medulla done clear
  C)
  Pelvis                                        done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer5)
  Reabsorption of chloride ions from glomerular nitrate in kidney tubule occurs by:
  A)
  Active transport done clear
  B)
  Diffusion done clear
  C)
  Osmosis done clear
  D)
  Brownian movement done clear
  View Solution play_arrow

• question_answer6)
  Synthesis of urea in liver takes place by:
  A)
  Nitrogen cycle    done clear
  B)
                     Kreb's cycle done clear
  C)
  Ornithine cycle                           done clear
  D)
  Glycolysis done clear
  View Solution play_arrow

• question_answer7)
  Uric acid gets deposited in small joints to produce:
  A)
  Rheumatoid arthritis done clear
  B)
  Gout done clear
  C)
  Osteoarthritis                              done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer8)
  Diabetes insipidus is a condition in which a person is unable to produce sufficient levels of the hormone ADH. The hormone increases the permeability of water of the second (distal) convoluted tubule and collecting duct in the kidney nephrons. What is produced as a result?
  A)
  Large volumes of concentrated urine done clear
  B)
  Large volumes of dilute urine done clear
  C)
  Small volumes of concentrated urine done clear
  D)
  Small volumes of dilute urine done clear
  View Solution play_arrow

• question_answer9)
  The loops of Henie in the kidneys of a desert kangaroo rat are much longer than those in a white laboratory rat because the:
  A)
  Kangaroo rat lives in an environment where water is scarce. done clear
  B)
  White rat's diet is much less varied than the kangaroo rat's. done clear
  C)
  Kangaroo rat cannot always find food. done clear
  D)
  Kangaroo rat produces more body wastes. done clear
  View Solution play_arrow

• question_answer10)
  Blood plasma contains proteins but glomerular filtrate does not. Why does this difference in composition occur?
  A)
  Blood osmotic pressure is maintained by the presence of plasma proteins. done clear
  B)
  Proteins are actively transported from the kidney tubule back into the blood capillaries. done clear
  C)
  Proteins cannot pass through the membranes of the glomerular capillaries. done clear
  D)
  There is a high hydrostatic pressure in the blood within the glomerular capillaries. done clear
  View Solution play_arrow

• question_answer11)
  In human beings the capsular urine entering the Proximal Convoluted Tubule (PCT) is:
  A)
  Isotonic to blood done clear
  B)
                     Hypotonic to blood done clear
  C)
  Hypertonic to blood                    done clear
  D)
  Isotonic to sea water done clear
  View Solution play_arrow

• question_answer12)
  If the diameter of afferent renal arteriole is decreased and that of efferent renal arteriole increased, ultra filtration will:
  A)
  Be faster done clear
  B)
  Be slower done clear
  C)
  Not take place done clear
  D)
  Take place in the same speed done clear
  View Solution play_arrow

• question_answer13)
  The voluntary response to the distension of urinary bladder is:
  A)
  Polyurea         done clear
  B)
                     Micturition done clear
  C)
  Mellitus          done clear
  D)
                     Menstruation done clear
  View Solution play_arrow

• question_answer14)
  Refer the following diagram and identify the parts of a kidney indicated as 1, 2, 3, 4 and 5.
  A)
  1 - cortex, 2 - nephron, 3 - pelvis, - medulla, 5 - ureter done clear
  B)
  1 - cortex, 2 - medulla, 3 - nephron, - pelvis, 5 - ureter done clear
  C)
  1 - nephron, 2 - cortex, 3 - medulla, - ureter, 5 - pelvis done clear
  D)
  1 - nephron, 2 - cortex, 3 - medulla, - pelvis, 5 - ureter done clear
  View Solution play_arrow

• question_answer15)
  Match the column-I with column-II and choose the correct option.

  	Column-I (Excretory organs)		Column-II (Animals)
  A.	Nephridia	I.	Hydra
  B.	Malpighian tubules	II.	Leech
  C.	Protonephridia	III.	Shark
  D.	Kidneys	IV.	Round worms
  		V.	Cockroach

  A)
  A-II;    B-V;     C-IV;    D-III done clear
  B)
  A-IV;   B-II;     C-I;      D-V done clear
  C)
  A-V;     B-II;    C-IV;    D-III done clear
  D)
  A-II;     B-IV;   C-V;     D-I done clear
  View Solution play_arrow

• question_answer16)
  If the afferent arteriole that supplies blood to the glomerulus becomes dilated:
  A)
  The protein concentration of the nitrate decreases. done clear
  B)
  Hydrostatic pressure in the glomerulus decreases. done clear
  C)
  The glomerular nitration rate increases.   done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer17)
  In which one of the following ways does the blood leaving the glomerulus of mammalian kidney tubule differ from the blood entering the glomerulus?                
  A)
  It has a lower concentration of plasma proteins. done clear
  B)
  It contains fewer corpuscles per unit volume. done clear
  C)
  It has a lower concentration of crystalloids done clear
  D)
  It has a higher concentration of crystalloid, done clear
  View Solution play_arrow

• question_answer18)
  The appearance of albumin in the urine is most likely due to:             
  A)
  Increase in the blood pressure. done clear
  B)
  Decrease in the blood osmotic corpuscles done clear
  C)
  Damage to the Malpighian corpuscles. done clear
  D)
  Damage to the proximal convoluted tubules. done clear
  View Solution play_arrow

• question_answer19)
  Mesonephric kidney is found in:
  A)
  Aves                                         done clear
  B)
  Reptilia done clear
  C)
  Fishes            done clear
  D)
                     All of these done clear
  View Solution play_arrow

• question_answer20)
  Which of the following is totally reabsorbed in renal tubules?
  A)
  Na                                            done clear
  B)
  K done clear
  C)
  \[{{H}_{2}}O\]                         done clear
  D)
  \[{{C}_{6}}{{H}_{12}}{{O}_{6}}\] done clear
  View Solution play_arrow

• question_answer21)
  In man, the two kidneys lie:
  A)
  At the level of ovaries. done clear
  B)
  At the same level. done clear
  C)
  Left kidney at a higher level than the right one. done clear
  D)
  Right kidney at a higher level than the left one. done clear
  View Solution play_arrow

• question_answer22)
  Vasa rectae are peritubular capillaries around:
  A)
  Posterior part of alimentary canal done clear
  B)
  PCT done clear
  C)
  Loop of Henle done clear
  D)
  DCT done clear
  View Solution play_arrow

• question_answer23)
  Which vitamin is excreted out in high quantity through urine in man?
  A)
  Vit. C                                        done clear
  B)
  Vit. D done clear
  C)
  Vit. E                                        done clear
  D)
  Vit. K done clear
  View Solution play_arrow

• question_answer24)
  Urine contains how much of water?
  A)
  96%                                          done clear
  B)
  90% done clear
  C)
  70%                                          done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer25)
  The glomerular nitrate consists of:
  A)
  Urea, sodium chloride, fibrinogen and water done clear
  B)
  Glucose, amino acids, urea, oxytocin and calcitonin done clear
  C)
  Both [a] and [b] done clear
  D)
  Urea, glucose, salts and water done clear
  View Solution play_arrow

• question_answer26)
  "Columns of Bertini" in the kidney of mammals are formed as the extension of:
  A)
  Medulla into cortex     done clear
  B)
  Cortex into medulla   done clear
  C)
  Medulla into pelvis                      done clear
  D)
  Pelvis into ureter done clear
  View Solution play_arrow

• question_answer27)
  Filtration pressure in human Kidneys is about:
  A)
  +15 mm Hg   done clear
  B)
  +70 mm Hg done clear
  C)
  +45 mm Hg    done clear
  D)
  +55 mm Hg done clear
  View Solution play_arrow

• question_answer28)
  Bowman's capsule is lined by:
  A)
  Ciliated cuboidal epithelium done clear
  B)
  Squamous epithelium done clear
  C)
  Non-ciliated cuboidal epithelium done clear
  D)
  Non-ciliated columnar epithelium done clear
  View Solution play_arrow

• question_answer29)
  Excretory products of mammalian embryo are eliminated by:
  A)
  Placenta          done clear
  B)
                     Amniotic fluid done clear
  C)
  Allantois         done clear
  D)
                     Ureters done clear
  View Solution play_arrow

• question_answer30)
  Accessory excretory organs of man are:
  A)
  Only skin done clear
  B)
  Only skin and liver done clear
  C)
  Only skin and lungs done clear
  D)
  Skin, lungs, liver and intestine done clear
  View Solution play_arrow

• question_answer31)
  Brush border epithelium is characteristic of:
  A)
  Neck of nephron done clear
  B)
  Collecting tube done clear
  C)
  Proximal convoluted tubule done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer32)
  Healthy human does not excrete out in his urine:
  A)
  Uric acid                                    done clear
  B)
  Alanine done clear
  C)
  Creatinine                                  done clear
  D)
  B-complex vitamins done clear
  View Solution play_arrow

• question_answer33)
  Consider the following statements and choose the correct option.

  (i) Flame cells are excretory structures in flatworms.

  (ii) Green glands are excretory organs in annelids.

  (iii) Columns of Bertini are the conical projections of renal pelvis into renal medulla between the renal pyramids.

  A)
  (i) and  (ii) are correct done clear
  B)
  (ii) and (iii) are incorrect done clear
  C)
  (i) and  (iii) are correct done clear
  D)
  (i), (ii) and (iii) are correct done clear
  View Solution play_arrow

• question_answer34)
  Which of the following statements about the excretory system of insects is not true?
  A)
  Active transport moves materials from the coelomic fluid into the Malpighian tubules. done clear
  B)
  The Malpighian tubules can produce a highly concentrated urea solution, allowing insects to inhabit some of Earth's driest habitats. done clear
  C)
  Reabsorption of salts takes place mostly in the gut. done clear
  D)
  Water reabsorption is by osmotic movement only. done clear
  View Solution play_arrow

• question_answer35)
  A single load of insulin is injected into the bloodstream. If the urine flow is constant, which graph best expresses the relationship between urine-insulin concentration and time?
  A)
  done clear
  B)
  done clear
  C)
  done clear
  D)
  done clear
  View Solution play_arrow

• question_answer36)
                                                                On a cold day, blood vessels in the skin:
  A)
  Dilate, allowing blood to keep the skin warm. done clear
  B)
  Constrict, forcing blood to flow through vessels in the skin. done clear
  C)
  Constrict, reducing heat loss from blood at the surface. done clear
  D)
  Dilate, causing blood to pass through the cold skin more quickly. done clear
  View Solution play_arrow

• question_answer37)
  Osmoreceptors in the brain detect changes in blood ion concentration which can reflexively result in:
  A)
  Water retention by the kidneys. done clear
  B)
  Water loss by the kidneys. done clear
  C)
  Ion retention by the kidneys. done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer38)
  Kidneys help in the conservation of useful materials and excretion of wastes and therefore they receive 20% of the heart's output of blood (as much as the heart and brain combined). On a percentage basis, which substance is most completely reabsorbed by the kidneys?
  A)
  Water            done clear
  B)
                     Glucose done clear
  C)
  Urea                                          done clear
  D)
  Sodium done clear
  View Solution play_arrow

• question_answer39)
  Bony fishes are:
  A)
  Ureotelic         done clear
  B)
                     Uricotelic done clear
  C)
  Aminotelic       done clear
  D)
                     Ammonotelic done clear
  View Solution play_arrow

• question_answer40)
  Flame cells are excretory organs of:
  A)
  Prawn                                       done clear
  B)
  Planaria done clear
  C)
  Silver Fish       done clear
  D)
                     Hydra done clear
  View Solution play_arrow

• question_answer41)
  Which organ of earthworm is analogous to our kidney?
  A)
  Clitellum        done clear
  B)
                     Nephridium done clear
  C)
  Flame cell       done clear
  D)
                     Typhlosole done clear
  View Solution play_arrow

• question_answer42)
  Liquid part of the blood having undergone ultrafiltration from the glomerulus and reaching Bowman's capsule normally would not contain:
  A)
  Sugar (glucose)   done clear
  B)
                     Sodium chloride done clear
  C)
  Creatinine        done clear
  D)
                     Albumin done clear
  View Solution play_arrow

• question_answer43)
  Glomerulus and Bowman's capsule constitute:
  A)
  Nephrotome      done clear
  B)
                     Renal corpuscle done clear
  C)
  Renal capsule    done clear
  D)
                     Malpighian tubule done clear
  View Solution play_arrow

• question_answer44)
  Human sweat does not contain:
  A)
  Lactic acid       done clear
  B)
                     Glucose done clear
  C)
  Amino acids      done clear
  D)
                     Uric acid done clear
  View Solution play_arrow

• question_answer45)
  Workers in deep mines usually suffer from dehydration because:
  A)
  Water is lost due to evaporation. done clear
  B)
  Water is lost due to defecation. done clear
  C)
  Water is lost in the form of urine. done clear
  D)
  Water is lost along with salts in the form of sweat. done clear
  View Solution play_arrow

• question_answer46)
  Glomerular nitration rate would be decreased by:                       
  A)
  Constriction of the efferent arteriole. done clear
  B)
  An increase in afferent arteriolar pressure done clear
  C)
  Compression of the renal capsule. done clear
  D)
  An increase in renal blood flow. done clear
  View Solution play_arrow

• question_answer47)
  Kidney crystals are solid clusters of:
  A)
  Calcium nitrate and uric acid done clear
  B)
  Phosphate and uric acid done clear
  C)
  Calcium carbonate and uric acid done clear
  D)
  Calcium metabisulphite and uric acid done clear
  View Solution play_arrow

• question_answer48)
  The hormone that promotes reabsorption of water from glomerular filtrate is:
  A)
  Oxytocin         done clear
  B)
                     Vasopressin done clear
  C)
  Calcitonin        done clear
  D)
                     Relaxin done clear
  View Solution play_arrow

• question_answer49)
  Select the correct match of the types of organs given in column-I with their role in excretion given in column-II.

  	Column-I		Column-II
  A.	Lungs	I.	Secretes bile containing substances like bilirubin, biliverdin, cholesterol, degraded steroid hormones, vitamins and drugs.
  B.	Liver	II.	Eliminates water and salts in sweat and substances like sterols, hydrocarbons and waxes through sebum.
  C.	Skin	III.	Remove large amounts of \[C{{O}_{2}}\](18litres/day) and also significant quantities of water every day.
  D.	Kidney	IV.	Remove wastes (metabolic by products and regulate pH, ion concentration, volume and osmolarity of blood.

  A)
  A-I;     B-II;    C-III;    D-IV done clear
  B)
  A-III;   B-I;     C-II;     D-IV done clear
  C)
  A-III;    B-I;     C-IV;   D-II done clear
  D)
  A-IV;   B-II;    C-III;    D-I done clear
  View Solution play_arrow

• question_answer50)
  Which of the following hormone/enzyme is /are correctly paired with its function?

  (i) Renin - Enzyme that catalyses the formation of angiotensin I.

  (ii) Aldosterone ? Regulates water reabsorption at the distal convoluted tubule.

  (iii) Anti-diuretic hormone (ADH) - It is a powerful vasoconstrictor that stimulates the secretion of aldosterone.

  (iv) Angiotensin II ? Promotes reabsorption of sodium at distal convoluted tubule.

  A)
  Only (i)           done clear
  B)
                     Only (iii) done clear
  C)
  (i), (ii) and (iii)   done clear
  D)
                     (ii), (iii) and (iv) done clear
  View Solution play_arrow

• question_answer51)
  The diagram shows a simplified nephron.                      In which regions (marked as 1,2,3,4 and 5) would cells with many microvilli and mitochondria be found?
  A)
  1 and 5          done clear
  B)
                     2 and 4 done clear
  C)
  2 and 3          done clear
  D)
                     3 and 4 done clear
  View Solution play_arrow

• question_answer52)
  If the human kidneys filter 150 litres of plasma in a 24 hour period, what is the typical amount of urine produced and eliminated in that time period?                
  A)
  0.15 litres         done clear
  B)
                     1.5 litres done clear
  C)
  15 litres           done clear
  D)
                     30 litres done clear
  View Solution play_arrow

• question_answer53)
  Out of the four parts given below, which parts plays significant role in forming concentrated urine in human?

  (i) Loop of Henle

  (ii) Glomerulus

  (iii) Bowman's capsule

  (iv) Vasa recta

  A)
  (i) and (ii)        done clear
  B)
                     (iii) and (iv) done clear
  C)
  (ii) and (iii)       done clear
  D)
                     (i) and (iv) done clear
  View Solution play_arrow

• question_answer54)
  Colloidal osmotic pressure in blood plasma is mainly due to:
  A)
  Albumin        done clear
  B)
                     Globulin done clear
  C)
  Fibrinogen       done clear
  D)
                     Sodium chloride done clear
  View Solution play_arrow

• question_answer55)
  The number of nephrons in a kidney is equal to:
  A)
  The number of Bowman's capsules. done clear
  B)
  Sum of Bowman's capsules and glomeruli. done clear
  C)
  Double the number of Bowman's capsules. done clear
  D)
  Sum of Bowman's capsules and Malpighian corpuscles. done clear
  View Solution play_arrow

• question_answer56)
  Expulsion of urine become voluntary when it is present in:
  A)
  Urethra                                      done clear
  B)
  Ureters done clear
  C)
  Urinary bladder                           done clear
  D)
  Pelvis of kidneys done clear
  View Solution play_arrow

• question_answer57)
  Renin is secreted from:
  A)
  Stomach                                    done clear
  B)
                     Juxta cortical cell done clear
  C)
  Juxta glomerular body done clear
  D)
  Juxta medullary cell done clear
  View Solution play_arrow

• question_answer58)
  ADH influences water permeability in the:
  A)
  Proximal tubule done clear
  B)
                     Distal tubule done clear
  C)
  Collecting tubule done clear
  D)
                     Both [a] and [b] done clear
  View Solution play_arrow

• question_answer59)
  A terrestrial animal must be able to:
  A)
  Conserve water. done clear
  B)
  Excrete large amounts of salts in urine. done clear
  C)
  Excrete large amounts of water in urine. done clear
  D)
  Actively pump salts out through the skin. done clear
  View Solution play_arrow

• question_answer60)
  The diagram below shows a nephron of the mammalian kidney.            Which one of the regions (marked as 1, 2, 3 and 4) is the main region responsible for restoring the metabolic level of the blood plasma to its pre- renal level?
  A)
  Region 1         done clear
  B)
                     Region 2 done clear
  C)
  Region 3         done clear
  D)
                     Region 4 done clear
  View Solution play_arrow

• question_answer61)
  Which of the following statement(s) is/are correct?

  (i) Urine is hypertonic in distal convoluted tubule.

  (ii) When the urine passes into collecting tubule, it becomes hypotonic.

  (iii) Urine is isotonic in proximal convoluted tubule.

  (iv) Urine becomes more and more hypotonic as it passes through Henle's loop.

  A)
  (i) and (iv)       done clear
  B)
                     (i), (ii) and (iii) done clear
  C)
  (ii) and (iii)       done clear
  D)
                     (iii) only done clear
  View Solution play_arrow

• question_answer62)
  Match the column-I with column-II and choose the correct option.

  	Column-I		Column-II
  A.	Delivers blood	I.	Proximal convoluted tubules
  B.	Carries urine to pelvis	II.	Renal artery
  C.	Collects nitrate from Bowman's capsule	III.	Collecting duct
  D.	Loop of Henle	IV.	Ascending and descending limb

  A)
  A-IV;   B-III;   C-II;    D-I done clear
  B)
  A-I;     B-II;    C-III;   D-IV done clear
  C)
  A-II;    B-III;   C-IV;   D-I done clear
  D)
  A-II;   B-III;    C-I;     D-IV done clear
  View Solution play_arrow

• question_answer63)
  Angiotensinogen is a protein produced and secreted by:
  A)
  Endothelial cells (cells lining the blood vessels) done clear
  B)
  Liver cells done clear
  C)
  Juxtaglomerular (JG) cells done clear
  D)
  Macula densa cells done clear
  View Solution play_arrow

• question_answer64)
  Which one is an important constituent of renin- angiotensinogen-aldosterone system?
  A)
  JGA cell         done clear
  B)
                     Macular cell done clear
  C)
  Erythropoetin    done clear
  D)
                     Plasma cell done clear
  View Solution play_arrow

• question_answer65)
  Which is finally reabsorbed in distal convoluted tubule?
  A)
  Calcium         done clear
  B)
                     Potassium done clear
  C)
  Bicarbonate      done clear
  D)
                     Water done clear
  View Solution play_arrow

• question_answer66)
  \[N{{a}^{+}}\]and\[C{{l}^{-}}\] are actively transported out of the tubules to help set up the countercurrent multiplier. Which of the following are sites of active \[N{{a}^{+}}\]and \[Cl{{-}^{{}}}\]transport in the nephron?
  A)
  Proximal tubule, ascending limb of the loop of Henle done clear
  B)
  Descending limb of the loop of Henie ascending limb of the loop of Henie done clear
  C)
  Ascending limb of the loop of Henie, proximal tubule done clear
  D)
  Collecting duct, descending limb of the loop of Henie done clear
  View Solution play_arrow

• question_answer67)
  Which of the following is acting as an artificial kidney in haemodialysis?
  A)
  Dialysing liquid  done clear
  B)
                     Dialyser done clear
  C)
  Bubble trap      done clear
  D)
                     Blood pump done clear
  View Solution play_arrow

• question_answer68)
  Which is the correct order for the path taken by urine after it leaves the kidney?
  A)
  1, 2, 3                                       done clear
  B)
  3, 1, 2 done clear
  C)
  2, 3, 1                                       done clear
  D)
  2, 1, 3 done clear
  View Solution play_arrow

• question_answer69)
  Which of the following statements is/are correct?

  (i) Urine is hypertonic in distal convoluted tubule.

  (ii) When the urine passes into the collecting tubule, it becomes hypotonic.

  (iii) Urine is isotonic in proximal convoluted tubule.

  (iv) Urine becomes more and more hypotonic as it passes through the Henle's loop.

  A)
  (i) and (iv) only done clear
  B)
                     (i), (ii), and (iii) only done clear
  C)
  (ii) and (iii) only                          done clear
  D)
  (iii) only done clear
  View Solution play_arrow

• question_answer70)
  Identity the correct statements.

  (i) The outer layer of the kidney is called capsule.

  (ii) Cortex is divided into outer cortex and inner medulla.

  (iii) Medulla is divided into medullary pyramids.

  (iv) The cortex extends in between the medullary pyramids which is called as columns of Bertini.

  A)
  (i), (iii) and (iv)   done clear
  B)
                     (i) and (iv) done clear
  C)
  (i), (ii) and (iii)    done clear
  D)
                     (i), (ii), (iii) and (iv) done clear
  View Solution play_arrow

• question_answer71)
  The blood constituents that remain unchanged in quantity after circulating through the kidney are:
  A)
  Urea and glucose done clear
  B)
  Glucose and proteins done clear
  C)
  Urea and proteins done clear
  D)
  Urea and uric acid done clear
  View Solution play_arrow

• question_answer72)
  Coxal glands are excretory organs in:
  A)
  Spiders and scorpions                  done clear
  B)
  Insects done clear
  C)
  Annelids                                    done clear
  D)
  Molluscs done clear
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• question_answer73)
  A fall in glomerular filtration rate (GFR) activates:
  A)
  Juxtaglomerular cells to release renin. done clear
  B)
  Adrenal cortex to release aldosterone. done clear
  C)
  Adrenal medulla to release adrenaline. done clear
  D)
  Posterior pituitary to release vasopressin. done clear
  View Solution play_arrow

• question_answer74)
  Antennal glands are excretory organs of:
  A)
  Moths                                        done clear
  B)
  Scorpions done clear
  C)
  Spiders          done clear
  D)
                     Crayfishes done clear
  View Solution play_arrow

• question_answer75)
  A marine fish lives in a hypertonic environment. What mechanisms does a marine fish use tom maintain homeostasis?     
  A)
  It drinks copious amounts of water, excretes only small amounts of water, and pumps sodium out of the body. done clear
  B)
  It drinks little water, excretes large amounts of water, and pumps sodium into the body. done clear
  C)
  It drinks little water, excretes only small amounts of water, and pumps sodium out of the body. done clear
  D)
  None of the above done clear
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• question_answer76)
  A person who is on a long hunger strike and is surviving only on water, will have:
  A)
  Less ammo acids in his urine done clear
  B)
  More glucose in his blood done clear
  C)
  Less urea in his urine done clear
  D)
  More sodium in his urine done clear
  View Solution play_arrow

• question_answer77)
  In micturition:
  A)
  Urethra relaxes                           done clear
  B)
  Ureters contract done clear
  C)
  Ureters relax      done clear
  D)
                     Urethra contracts done clear
  View Solution play_arrow

• question_answer78)
  Match column-I with column-II regarding human excretory system and choose the correct option given below.

  	Column-I		Column-II
  A.	Epithelial cells of Bowman's capsule	I.	Juxtamedullary  nephron
  B.	Extension of cortex between the medullary pyramids as renal columns	II.	Vasa recta
  C.	Nephrons with long loop of Henle running deep into the medulla	III.	Juxtaglomerular Apparatus
  D.	A fine vessel of the peritubular capillaries running parallel to Henle?s loop	IV.	Podocytes
  E.	A special sensitive region in the DCT and afferent arteriole at the location of their contact	V.	Columns of Bertini

  A)
  A-III;      B-II;   C-I;     D-IV;    E-V done clear
  B)
  A-V;      B-I;    C-II;     D-III;    E-IV done clear
  C)
  A-IV;     B-III;   C-I;      D-II;     E-V done clear
  D)
  A-II;      B-IV;   C-VI;   D-I;      E-III done clear
  View Solution play_arrow

• question_answer79)
  The part of the nephron impermeable to water is:                    
  A)
  Proximal tubule   done clear
  B)
  Distal tubule done clear
  C)
  Ascending limb of Henle's loop done clear
  D)
  Collecting duct done clear
  View Solution play_arrow

• question_answer80)
  In the renal tubules, the permeability of the distal convoluted tubule and collecting duct to water is controlled by:   
  A)
  Aldosterone      done clear
  B)
                     Vasopressin done clear
  C)
  Growth hormone                         done clear
  D)
  Renin done clear
  View Solution play_arrow

• question_answer81)
  In which part of excretory system of mammals can you first use the term 'urine' for contained fluid?
  A)
  Bowman's capsule     done clear
  B)
  Loop of Henle     done clear
  C)
      Collecting tubule done clear
  D)
                     Urinary bladder done clear
  View Solution play_arrow

• question_answer82)
  In distal convoluted tubule of the nephrons:
  A)
  \[N{{a}^{+}}\] reabsorption requires energy. done clear
  B)
  Secretion of \[{{K}^{+}}\] ions does not require energy. done clear
  C)
  Water reabsorption requires energy. done clear
  D)
  Ammonia is secreted. done clear
  View Solution play_arrow

• question_answer83)
  Most aquatic animals excrete ammonia, while land animals excrete urea or uric acid. What is the most likely explanation for this difference?
  A)
  They have different diets. done clear
  B)
  Land animals can get the energy needed to make urea or uric acid. done clear
  C)
  Ammonia is very toxic, and it takes lots of water to dilute it. done clear
  D)
  Land animals cannot afford the energy needed to make ammonia. done clear
  View Solution play_arrow

• question_answer84)
  Osmoregulation in Paramoecium is a function of:
  A)
  Contractile vacuole                     done clear
  B)
  Trichocysts done clear
  C)
  Cytopyge        done clear
  D)
                     Cyostome done clear
  View Solution play_arrow

• question_answer85)
  Common excretory product of insects is:
  A)
  \[N{{H}_{3}}\]                         done clear
  B)
  Urea done clear
  C)
  Uric acid        done clear
  D)
                     Hippuric acid done clear
  View Solution play_arrow

• question_answer86)
  In prawn, excretion is carried out by:
  A)
  Nephrons        done clear
  B)
                     Malpighian tubules done clear
  C)
  Flame cells       done clear
  D)
  Green glands done clear
  View Solution play_arrow

• question_answer87)
  Hippuric acid, creatinines and ketones are added to urine through:  
  A)
  Reabsorption       done clear
  B)
      Glomerular nitration done clear
  C)
  Tubular secretion done clear
  D)
  Both [b] and [c] done clear
  View Solution play_arrow

• question_answer88)
  If Henle's loop were absent from mammaliar nephron then which of the following is to be expected?
  A)
  There will be no urine formation. done clear
  B)
  There will be hardly any change in the quality and quantity of urine formed. done clear
  C)
  The urine will be more concentrated. done clear
  D)
  The urine will be more diluted. done clear
  View Solution play_arrow

• question_answer89)
  The given diagram represents a kidney nephron.                 At which position (marked as 1, 2, 3, 4, 5 and 6) does antidiuretic hormone (ADH) affect the permeability of membranes to water?
  A)
  1 and 2                                     done clear
  B)
  3 and 4 done clear
  C)
  2 and 3                                     done clear
  D)
  5 and 6 done clear
  View Solution play_arrow

• question_answer90)
  Following are four statements. Find out the correct combination.

  (i) Glucose has high threshold value.

  (ii) Urine is concentrated in Henle's loop.

  (iii) Haemodialyser removes urea, uric acid, glucose and proteins.

  (iv) In glomerulus, urea, uric acid, water, glucose and plasma proteins are filtered out.

  A)
  (i), (iii), (iv)                                 done clear
  B)
  (ii), (iii), (iv) done clear
  C)
  (i), (ii)                                        done clear
  D)
  (i), (iii) done clear
  View Solution play_arrow

• question_answer91)
  The Urine under normal conditions does not contain glucose because:
  A)
  The normal blood sugar is fructose. done clear
  B)
  Glucose of blood is not filtered in the glomerulus. done clear
  C)
  Glucose in glomerular filtrate is reabsorbed in the uriniferous tubules. done clear
  D)
  Glucose in glomerular filtrate is converted into glycogen. done clear
  View Solution play_arrow

• question_answer92)
  \[N{{a}^{+}}andC{{l}^{-}}\]both are removed by:
  A)
  Ascending limb of Henle's loop done clear
  B)
  Proximal convoluted tubule done clear
  C)
  Both [a] and [b] done clear
  D)
  Descending limb of Henle's loop done clear
  View Solution play_arrow

• question_answer93)
  Due to insufficient filtration in the Bowman's capsule, all are likely to happen except:
  A)
  Accumulation of fluid in the body done clear
  B)
  Increase in blood pressure done clear
  C)
  Increase in blood urea level done clear
  D)
  Loss of glucose through urine done clear
  View Solution play_arrow

• question_answer94)
  The kidneys resemble contractile vacuoles of protozoans in expelling:
  A)
  Excess water     done clear
  B)
                     Excess glucose done clear
  C)
  Urea & uric acid done clear
  D)
                     All salts done clear
  View Solution play_arrow

• question_answer95)
  Dialysis (used for the treatment of chronic kidney diseases) differs from the process of osmosis in the respect that: 
  A)
  Both solvent and solute pass through the membrane. done clear
  B)
  Only solute selectively passes through the membrane. done clear
  C)
  Only solvent selectively passes through the membrane. done clear
  D)
  Gases are the only substances that pass through the membrane and the blood is cleaned. done clear
  View Solution play_arrow

• question_answer96)

  Directions for (Qs. 96 to 99): Refer the given figure of nephron showing blood vessels and duct and answer the questions.

  Which parts in the given figure have minimum reabsorption and play a significant role in the maintenance of high osmolarity of medullary interstitial fluid?
  A)
  1 and 2                                     done clear
  B)
  3 and 4 done clear
  C)
  5 and 6                                     done clear
  D)
  7 and 8 done clear
  View Solution play_arrow

• question_answer97)

  Directions for (Qs. 96 to 99): Refer the given figure of nephron showing blood vessels and duct and answer the questions.

  Cells of which part is lined by simple cuboidal brush border epithelium that increases the surface area for reabsorption? Identify the name also.
  A)
  3-Descending limb of loop of HenIe done clear
  B)
  5-Vasa recta done clear
  C)
  6-Proximal convoluted tubule done clear
  D)
  7-Collecting duct done clear
  View Solution play_arrow

• question_answer98)

  Directions for (Qs. 96 to 99): Refer the given figure of nephron showing blood vessels and duct and answer the questions.

  Which part is capable of reabsorption of \[HC{{O}^{-}}_{3}\] and selective secretion of hydrogen and potassium ions and \[N{{H}_{3}}\] to maintain the pH and sodium-potassium balance in blood?
  A)
  1                                              done clear
  B)
  3 done clear
  C)
  5 done clear
  D)
                     7 done clear
  View Solution play_arrow

• question_answer99)

  Directions for (Qs. 96 to 99): Refer the given figure of nephron showing blood vessels and duct and answer the questions.

  Which structures have an ability to produce the concentrated urine?
  A)
  1, 2, 3                                       done clear
  B)
  3, 4, 5 done clear
  C)
  6, 7, 8                                       done clear
  D)
  2, 4, 7 done clear
  View Solution play_arrow

• question_answer100)
  In hot weather the urine becomes more concentrated and darker in colour, due to:
  A)
  Dehydration done clear
  B)
  Rehydration done clear
  C)
  Absorption of aldosterone done clear
  D)
  Absence of renin done clear
  View Solution play_arrow