11th Class Biology Sample Paper

done Biology Sample Paper-2 Total Questions - 20    [Download]

• question_answer1)
  The flower shown in the given diagram is   
  A)
   Homochlamydeous, unisezual and hypogynous
  done clear
  B)
   Homochlamydeous, bisexual and epigynous
  done clear
  C)
   Dichlamydeous, bisexual and hypogynous
  done clear
  D)
   Heterochlamdeous, bisezual and epigynous.
  done clear
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• question_answer2)
  Which one of the following graphs shows the relationship between the rate of enzymatic reaction (V) and substrate concentration (S)?
  A)
         
  done clear
  B)
   
  done clear
  C)
                      
  done clear
  D)
   
  done clear
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• question_answer3)
  Sedum is a long day plant. Its critical duration of light is 13 hours. Under which the following conditions would it flower? [Key: = Period of light = Period of darkness]
  A)
   
  done clear
  B)
                          Time (hours)  
  done clear
  C)
                          Time (hours)  
  done clear
  D)
                          Time (hours)                           Time (hours)
  done clear
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• question_answer4)
  Which of the following statements is incorrect for the given figure?
  A)
   It is a photosynthetic autotroph.
  done clear
  B)
   It can fix atmospheric nitrogen.
  done clear
  C)
  It forms symbiotic association with Anthoceros, Trifolium roots and Gunnera stems.
  done clear
  D)
   It is highly pollution resistant, and acts as indicator of water pollution.
  done clear
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• question_answer5)
  Identify the components labelled a, b, c, d, e and f in the given figure from the list (i) to (vi) given below.

  (i)  Glycoprotein

  (ii) Cholesterol

  (v) Intrinsic protein

  (vi) Carbohydrate

  The correct components are

  A)
   a-(iv), b-(i), c-(vi), d-(ii), e-(iii), f-(v)    
  done clear
  B)
   a-(i), b-(iv), c-(vi), d-(ii), e-(v), f-(iii)
  done clear
  C)
   a-(iv), b-(i), c-(ii), d-(vi), e-(v), f-(iii)    
  done clear
  D)
   a-(iv), b-(i), c-(vi), d-(ii), e-(v), f-(iii)
  done clear
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• question_answer6)
  Match column-I with column-II and select the correct option from codes given below.

  Column-I	Column-II
  Morels	(i) Deuteromycetes
  Smut	(ii) Ascomycetes
  Bread mould	(iii) Basidiomycetes
  Imperfect fungi	(iv) Phycomycetes

  A)
   a-(iii),b-(iv), c-(i),d-(ii)          
  done clear
  B)
   a-(ii),b-(iii),c-(iv),d-(i)
  done clear
  C)
   a-(iv),b-(i),c-(ii),d-(iii)          
  done clear
  D)
   a-(iii),b-(iv),c-(ii),d-(i)
  done clear
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• question_answer7)
  Which of the following statements is/are correct for the given figures?

  'a' is a transverse section of a dicot root while 'b' is of monocot root.

  Both 'a' and 'b' undergo secondary growth.

  'a' possesses diarch to hexarch vascular bundles while 'b' possesses polyarch vascular bundles.

  In both 'a' and 'b', cambium is present at the time of secondary growth.

  A)
   (i) only                     
  done clear
  B)
   (ii) and (iv)
  done clear
  C)
   (i), (ii) and (iii)         
  done clear
  D)
   (i) and (iii)
  done clear
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• question_answer8)
  Identify X, Y and Z in the given diagram of citric cycle and select the correct option.  
  A)

  X	Y	Z
  GTP	\[NAD{{H}_{2}}\]	\[FAD{{H}_{2}}\]

  done clear
  B)

  X	Y	Z
  \[FAD{{H}_{2}}\]	\[NAD{{H}_{2}}\]	GTP

  done clear
  C)

  X	Y	Z
  \[NAD{{H}_{2}}\]	\[FAD{{H}_{2}}\]	GTP

  done clear
  D)

  X	Y	Z
  \[C{{O}_{2}}\]	\[NAD{{H}_{2}}\]	ADP

  done clear
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• question_answer9)
  Angiosperms L and M shown in the given figure belong to the class____and_____ respectively.
  A)

  L	M
  Dicotyledonae	Monocotyledonae

  done clear
  B)

  L	M
  Monocotyledonae	Dicotyledonae

  done clear
  C)

  L	M
  Dicotylednoae	Dicotyledoane

  done clear
  D)
  done clear
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• question_answer10)
  Deep-water rice is an important crop in South East Asia where water levels during the rainy season may rise by several metres within a short time. Deep-water rice has the ability to adapt to the rising water by growing quickly, thus keeping its "head" (flower stalk and upper leaves) above water. Examine the four graphs and identify the hormone that regulates this rapid growth.
  A)
   Ethylene          
  done clear
  B)
   Cytokinin
  done clear
  C)
   Gibberellin       
  done clear
  D)
   None of these
  done clear
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• question_answer11)
  Which of the following sarcomeres is labelled correctly?
  A)
   
  done clear
  B)
   
  done clear
  C)
   
  done clear
  D)
  
  done clear
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• question_answer12)
  The given figure is a schematic break-up of the phases/stages of, cell cycle. Select the correct option regarding it.    
  A)
   'a' represents karyokinesis which is the division of cytoplasm
  done clear
  B)
   'b' is telophase which is just reverse of prophase.  
  done clear
  C)
   'c' is the best phase to count total number of chromosomes in any
  done clear
  D)
   In 'd' stage, replication of DNA takes place on the template of the  existing DNA.
  done clear
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• question_answer13)
  Sandhya made an observation about general body shapes in male and female. According to her, females have a 'pear-shaped' body due to more fat deposition around thighs and hips, whereas, males have an 'apple-shaped' body due to more fat deposition around abdomen. Which of the following is the main reason for the difference in fat deposition?
  A)
   Muscle tissue distribution             
  done clear
  B)
   Areolar tissue distribution
  done clear
  C)
   Adipose tissue distribution  
  done clear
  D)
   Epithelial tissue distribution
  done clear
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• question_answer14)
  In which one of the following options the genus name, its two characters and its class/phylum are correctly matched?
  A)

  Genus name	Characters	Class/Phylum
  Ascaris	(i) Pseudocoelom (ii) Males and females distinct	Aschelminthes

  done clear
  B)

  Genus name	Characters	Class/Phylum
  salamandra	(i) Sinus venosous absent (ii) Fertilization is external	Amphibia

  done clear
  C)

  Genus name	Characters	Class/Phylum
  Pteropus	(i) Skin possesses hair (ii) Oviparous	Mammalia

  done clear
  D)

  Genus name	Characters	Class/Phylum
  Aurelia	(i) Cnidoblasts (ii) Orgn level of organization	Coelenterata

  done clear
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• question_answer15)
  The given steps (i-vi) are involved during the generation of action potential. Arrange them in correct sequence.
  A)
   (i)\[\to \] (ii)\[\to \](iii)\[\to \](vi)\[\to \](v)\[\to \](iv)
  done clear
  B)
   (v)\[\to \](ii)\[\to \](i)\[\to \](vi)\[\to \](iii)\[\to \](iv)
  done clear
  C)
   (iv)\[\to \](vi)\[\to \](ii)\[\to \](v)\[\to \](iii)\[\to \](i)
  done clear
  D)
   (iv)\[\to \](ii)\[\to \](v)\[\to \](i)\[\to \](iii)\[\to \](vi)
  done clear
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• question_answer16)
  The figure given below shows a small part of human lung where exchange of gases takes place. Select the option which represents labelled part (a, b, c or d) correctly identified along with its function.
  A)
   c : Arterial capillary - passes oxygen to tissues
  done clear
  B)
   a : Alveolar cavity - main site of exchange of respiratory gases
  done clear
  C)
   d : Capillary wall - exchange of and takes place here
  done clear
  D)
   b : Red blood cells - carry out transport of
  done clear
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• question_answer17)
  Select the option having all the correct characteristics.
  A)

  Structure	Percentage of leucocytes	Function
  	0.3-0.5	Phagocytic

  done clear
  B)

  Structure	Percentage of leucocytes	Function
  	0-10	Secrete histamine and serotonin

  done clear
  C)

  Structure	Percentage of leucocytes	Function
  	30-40	Defence against parasites

  done clear
  D)

  Structure	Percentage of leucocytes	Function
  	30-40	Allergic reactions

  done clear
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• question_answer18)
  The given graph shows digestion of carbohydrates, proteins and fats as food moves along the different parts of the alimentary canal from J to 0. Which of the following correctly identifies K,L,M and N?
  A)

  K	L	M	N
  Stomach	Small intestine	Small intestine	Large Intestine

  done clear
  B)

  K	L	M	N
  Oesophagus	Small intestine	Large intestine	Rectum

  done clear
  C)

  K	L	M	N
  Stomach	Small intestine	Large intestine	Rectum

  done clear
  D)

  K	L	M	N
  Oesophagus	Stomach	Small intestine	Large intestine

  done clear
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• question_answer19)
  What does the given graphical representation show about the mechanism of skeletal muscle contraction?
  A)
   Summation and fatigue  
  done clear
  B)
   Tetanization and fatigue
  done clear
  C)
   Summation and tetanization
  done clear
  D)
   Summation and contracture
  done clear
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• question_answer20)
  Which one of the following is the correct pathway for propagation of cardiac Impulse?
  A)
   SA node \[\to \] AV node \[\to \] Bundle of His \[\to \]Purkinje fibres
  done clear
  B)
   AV node \[\to \] Bundle of His \[\to \] SA node \[\to \]Purkinje fibres
  done clear
  C)
   SA node \[\to \] Purkinje fibres \[\to \] AV node \[\to \] Bundle of His
  done clear
  D)
   Purkinje fibres \[\to \] AV node \[\to \] SA node \[\to \]Bundle of His
  done clear
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