-
question_answer1)
phospholipids are:
A)
Hydrophilic done
clear
B)
Amphibolic done
clear
C)
Hydrophobic done
clear
D)
Amphipathic done
clear
View Solution play_arrow
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question_answer2)
Deionised water is obtained by passing hard water through:
A)
Zeolite done
clear
B)
Cation exchanger done
clear
C)
Anion exchanger done
clear
D)
Both cation and anion exchanger done
clear
View Solution play_arrow
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question_answer3)
Chargaff's rule is applicable to:
A)
Single stranded DNA done
clear
B)
Double stranded DNA done
clear
C)
Single stranded RNA done
clear
D)
Single stranded DNA and RNA done
clear
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question_answer4)
The ground susbtance of connective tissue is basically composed of:
A)
Lipids done
clear
B)
Phospholipids done
clear
C)
Monosaccharides done
clear
D)
Mucopolysaccharides done
clear
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question_answer5)
Match the following nutritional vitamin deficiencies in column-I with the causes/ deficiencies in column-II and choose the correct option.
| Column-I | | Column-II |
A. | Kwashiorkar | I. | Iron |
B. | General anaemia | II. | Menadione |
C. | Dermatitis | III. | Protein |
D. | Marasmus | IV. | Pyridoxine |
E. | Bleeding | V. | Biotin |
A)
A-I; B-V; C-II; D-III; E-IV done
clear
B)
A-V; B-II; C-III; D.IV; E-I done
clear
C)
A-V; B-III; C-IV; D-I; E-II done
clear
D)
A-III; B-IV; C-I; D-V; E-II done
clear
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question_answer6)
Identify the graph labelling as per the statements given and choose the correct option.
(i) Segment representing the energy of activation |
(ii) Segment representing the amount of free energy released by the reaction |
(iii) Transition state |
(iv) Segment would be the same regardless of whether the reaction were uncatalysed or catalysed. |
A)
(i) - I (ii) - III (iii) - II (iv) ? IV done
clear
B)
(i) - I (ii) - II (iii) - III (iv) ? II done
clear
C)
(i) - I (ii) - III (iii) - II (iv) ? IV done
clear
D)
(i) - I (ii) - II (iii) - IV (iv) - III done
clear
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question_answer7)
Allosteric enzymes have allosteric sites for:
A)
Inhibition only done
clear
B)
Activation only done
clear
C)
Reduction in activation energy done
clear
D)
Both activation and inhibition done
clear
View Solution play_arrow
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question_answer8)
Which of the following compounds listed below is not a monoamine?
A)
Histamine done
clear
B)
Serotonin done
clear
C)
Spermine done
clear
D)
Dopamine done
clear
View Solution play_arrow
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question_answer9)
The cellular pool is formed by:
A)
inorganic molecules done
clear
B)
organic molecules done
clear
C)
all the molecules in dissolved or suspended state done
clear
D)
water done
clear
View Solution play_arrow
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question_answer10)
Milk protein is:
A)
Lactogen done
clear
B)
Myosin done
clear
C)
Casein done
clear
D)
Pepsin done
clear
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question_answer11)
Enzymes, vitamins and hormones can be classified into a single category of biological chemicals, because all of these:
A)
enhance oxidative metabolism. done
clear
B)
are conjugated proteins. done
clear
C)
are exclusively synthesised in the body of a living organism. done
clear
D)
help in regulating metabolism. done
clear
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question_answer12)
All the following statements are true with regard to coconut oil, except:
A)
it is composed of medium chain triglycerides. done
clear
B)
it contains mainly saturated fatty acids. done
clear
C)
it has a higher iodine number than human fat. done
clear
D)
it contains cholesterol. done
clear
View Solution play_arrow
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question_answer13)
The base pairs of DNA are correctly shown as:
A)
A=T and C=G done
clear
B)
A=T and C=G done
clear
C)
A=T and C=G done
clear
D)
A=T and C=G done
clear
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question_answer14)
Ammonia is very toxic to brain cells. This is immediately trapped in brain by one of the following mechanisms.
A)
Glutamine synthetase reaction done
clear
B)
Glutaminase reaction done
clear
C)
Urea synthesis cycle done
clear
D)
Glutamate dehydrogenase reaction done
clear
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question_answer15)
Which one of the given graph shows the effect of pH on the velocity of a typical enzymatic reaction (V)?
A)
B)
C)
D)
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question_answer16)
Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it?
A)
Adenine, thymine - Purines done
clear
B)
Thymine, uracil - Pyrimidines done
clear
C)
Uracil, cytosine - Pyrimidines done
clear
D)
Guanine, adenine - Purines done
clear
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question_answer17)
Glycogen is stored in:
A)
Liver and muscles done
clear
B)
Liver only done
clear
C)
Muscles only done
clear
D)
Pancreas done
clear
View Solution play_arrow
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question_answer18)
One of the following proteins does not have a quaternary structure.
A)
Hemoglobin done
clear
B)
Myoglobin done
clear
C)
Lactate dehydrogenase done
clear
D)
Immunoglobin G done
clear
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question_answer19)
Iron porphyrin occurs in:
A)
Cytochrome done
clear
B)
Phytochrome done
clear
C)
Anthocyanin done
clear
D)
Both [b] and [c] done
clear
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question_answer20)
The high energy bonds of ATP are present between:
A)
C - C done
clear
B)
C - O done
clear
C)
C - N done
clear
D)
O - P done
clear
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question_answer21)
Match Column-I with Column-II and select the correct answer using the codes given below.
| Column-I | | Column-II |
A. | Collagen | I. | Glucose transport |
B. | Trypsin | II. | Binding with some chemical like for small taste and hormones |
C. | Trypsin | III. | Homones |
D. | Marasmus | IV. | Enzyme |
E. | Bleeding | V. | Intercellular ground substance |
F. | GLUT-IV VI | VI. | Fight infectious agents |
A)
A-V; B-IV; C-III; D-VI; E-II; F-I done
clear
B)
A-II; B-III; C-IV; D-V; E-VI; F-I done
clear
C)
A-VI; B-II; C-I; D-V; E-VI; F-III done
clear
D)
A-I; B-IV; C-III; D-VI; E-II; F-V done
clear
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question_answer22)
Which of the following is incorrectly matched?
A)
Ribozyme - Proteinaceous in nature done
clear
B)
Apoenzyme - The protein part of enzyme done
clear
C)
Co-enzyme - Loosely attached organic co-factor of holoenzyme done
clear
D)
Co-factors - Non-protein part of holoenzyme done
clear
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question_answer23)
Denaturation of DNA is accompanied by the following changes except:
A)
Increase in viscosity done
clear
B)
Hyperchromicity done
clear
C)
Unstacking of bases done
clear
D)
Destabilisation of DNA helix done
clear
View Solution play_arrow
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question_answer24)
All the following radio nuclei are used in the study of DNA except:
A)
\[^{14}C\] done
clear
B)
\[^{32}P\] done
clear
C)
\[^{15}N\] done
clear
D)
\[^{51}Cr\] done
clear
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question_answer25)
The adjoining graph shows change in cone. Of substrate on enzyme activity. Identify 1, 2 and 3.
A)
1 - \[Ki\] 2 - \[{{K}_{m}}\] 3 - \[{{V}_{\max }}\] done
clear
B)
1 - \[\frac{{{V}_{\max }}}{2}\] 2 - \[{{K}_{m}}\] 3 - \[Ki\] done
clear
C)
1 - \[{{V}_{\max }}\] 2 - \[{{K}_{m}}\] 3 - \[\frac{{{V}_{\max }}}{2}\] done
clear
D)
1 - \[{{K}_{m}}\] 2 - \[{{V}_{\max }}\] 3 - \[\frac{{{V}_{\max }}}{2}\] done
clear
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question_answer26)
If base order in one chain of DNA is "ATCGA" then how many no. of H-bond found in DNA duplex?
A)
20 done
clear
B)
12 done
clear
C)
10 done
clear
D)
11 done
clear
View Solution play_arrow
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question_answer27)
Raffinose is a:
A)
Trisaccharide done
clear
B)
Disaccharide done
clear
C)
Polysaccharide done
clear
D)
Monosaccharide done
clear
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question_answer28)
Sugar and amino acids are:
A)
Primary metabolites done
clear
B)
Secondary metabolites done
clear
C)
Feed stock done
clear
D)
Inoculum done
clear
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question_answer29)
Long chain molecules of fatty acids are formed by:
A)
polymerisation of 2-carbon compounds done
clear
B)
decomposition of fats done
clear
C)
polymerisation of glycogen done
clear
D)
conversion of glycogen done
clear
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question_answer30)
Keratin is:
A)
Tripeptide done
clear
B)
Chromoprotein done
clear
C)
Fibrous protein done
clear
D)
Conjugate protein done
clear
View Solution play_arrow
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question_answer31)
Match the column-I (Component) with column-II (% of the total cellular mass) and identify the correct options.
| Column-I (Component) | | Column-II (% of the total cellular mass) |
A. | Water | I. | 3 |
B. | Proteins | II. | 70-90 |
C. | Carbohydrates | III. | 2 |
D. | Lipids | IV. | 5-7 |
E. | Nucleic acids | V. | 10-15 |
A)
A-V; B-II; C-III; D-IV; E-I done
clear
B)
A-II; B-V; C-I; D-III; E-IV done
clear
C)
A-III; B-I; C-IV; D-V; E-II done
clear
D)
A-V; B-IV; C-III; D-II; E-I done
clear
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question_answer32)
Identify the following molecule.
A)
Phospholipid done
clear
B)
Lecithin done
clear
C)
Cholesterol done
clear
D)
Oleic acid done
clear
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question_answer33)
Study the given statements and select the option.
(i) Nitrogen bases are open chain hydrocarbons. |
(ii) A nucleoside differ from nucleotide in not having phosphate. |
(iii) One turn of B-DNA has ten base pairs. |
(iv) Length of one turn of DNA is 3.4 A. |
A)
(i) and (ii) are correct. done
clear
B)
(i) and (iv) are correct. done
clear
C)
(ii) and (iii) are incorrect. done
clear
D)
(i) and (iv) are incorrect. done
clear
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question_answer34)
According to Watson and Crick how many base pairs are there in each turn of the helix of DNA?
A)
10 done
clear
B)
11 done
clear
C)
12 done
clear
D)
13 done
clear
View Solution play_arrow
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question_answer35)
Phospholipid can be neutralised by:
A)
Glycerol done
clear
B)
Fatty acids done
clear
C)
Choline done
clear
D)
Aspartic acid done
clear
View Solution play_arrow
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question_answer36)
Which of the following is a non-reducing sugar?
A)
Maltose done
clear
B)
Trehalose done
clear
C)
Lactose done
clear
D)
Isomaltose done
clear
View Solution play_arrow
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question_answer37)
Thymine is:
A)
5-Methyl uracil done
clear
B)
4-Methyl uracil done
clear
C)
3-Methyl uracil done
clear
D)
1-Methyl uracil done
clear
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question_answer38)
Sucrose is made up of glucose and fructose, which are reducing sugars; but sucrose is a non- reducing sugar, because the linkage involves:
A)
1st carbon of glucose and 2nd carbon of fructose done
clear
B)
2nd carbon of glucose and 1st carbon of fructose done
clear
C)
1st carbon of glucose and 4th carbon of fructose done
clear
D)
4th carbon of glucose and 1st carbon of fructose done
clear
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question_answer39)
Which statement is correct for biomolecules?
A)
DNA is a polymer of ribonucleotides. done
clear
B)
All carbohydrates breakdown into glucose. done
clear
C)
Sequence ofamino acids determines primary protein structure. done
clear
D)
RNA is single stranded and contains different purine bases other than in DNA. done
clear
View Solution play_arrow
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question_answer40)
Ligase enzyme is used for:
A)
Denaturation of DNA done
clear
B)
Splitting DNA into small bits done
clear
C)
Joining bits of DNA done
clear
D)
Digestion of lipids done
clear
View Solution play_arrow
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question_answer41)
Which of the following is an essential fatty acid?
A)
Linoleic acid done
clear
B)
Linolenic acid done
clear
C)
Arachidonic acid done
clear
D)
All of these done
clear
View Solution play_arrow
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question_answer42)
Which of the following disccharide gives two molecules of glucose on hydrolysis?
A)
Maltose done
clear
B)
Lactose done
clear
C)
Both [a] and [b] done
clear
D)
Sucrose done
clear
View Solution play_arrow
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question_answer43)
In protoplasm, the amount of organic compounds, in decreasing order, are:
A)
Protein, Lipid, Carbohydrate, Nucleic acid done
clear
B)
Water, Protein, Lipid, Nucleic acid done
clear
C)
Carbohydrate, Protein, Lipid, Nucleic acid done
clear
D)
Protein, Carbohydrate, Nucleic acid, Lipid done
clear
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question_answer44)
Phospholipids are important cell membrane constituents, because they:
A)
contain glycerol done
clear
B)
can form bilayers in water done
clear
C)
combine covalently with protein done
clear
D)
contain polar and non-polar portions done
clear
View Solution play_arrow
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question_answer45)
In DNA, purine nitrogen bases are:
A)
Uracil and Guanine done
clear
B)
Guanine and Adenine done
clear
C)
Adenine and cytosine done
clear
D)
Cytosine and Thymine done
clear
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question_answer46)
tRNA attaches amino acid at its:
A)
3'end done
clear
B)
5'end done
clear
C)
Loop done
clear
D)
Anticodon done
clear
View Solution play_arrow
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question_answer47)
The most abundant structural polysaccharide is cellulose and the second largest structural polysaccharide is:
A)
Chitin done
clear
B)
Mannose done
clear
C)
Glycogen done
clear
D)
Hyaluronic acid done
clear
View Solution play_arrow
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question_answer48)
What is denoted by 1 and 2 in the given graph?
A)
1 - Activation energy with enzyme 2 - Activation energy without enzyme done
clear
B)
1 - Activation energy without enzyme 2 - Activation energy with enzyme done
clear
C)
1 - Substrate concentration with enzyme 2 - Substrate concentration without enzyme done
clear
D)
1 - Substrate concentration without enzyme 2 - Substrate concentration with enzyme done
clear
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question_answer49)
Allosteric modulation is due to the inhibition action of enzyme by:
A)
Competitive inhibition done
clear
B)
Substrate concentration done
clear
C)
Products of reaction done
clear
D)
Enzyme concentration done
clear
View Solution play_arrow
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question_answer50)
All the following statements are true with regard to coconut oil, except:
A)
it is composed of medium chain triglycerides. done
clear
B)
it contains mainly saturated fatty acids. done
clear
C)
has a higher iodine number than human fat. done
clear
D)
contains cholesterol. done
clear
View Solution play_arrow
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question_answer51)
The set of three elements included in micronutrients is:
A)
Na, Cu, Mg done
clear
B)
Fe, Zn, Cu done
clear
C)
Fe, K, Ca done
clear
D)
Mn, Ni, P done
clear
View Solution play_arrow
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question_answer52)
The structure of linolenic acid can be described
A)
16 carbon, one double bond done
clear
B)
18 carbon, one double bond done
clear
C)
18 carbon, two double bonds done
clear
D)
18 carbon, three double bonds done
clear
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question_answer53)
Which of the following amino acids will give rise to an inhibitory neurotransmitter?
A)
Histidine done
clear
B)
Glutamic acid done
clear
C)
Omithine done
clear
D)
Tyrosine done
clear
View Solution play_arrow
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question_answer54)
Pectin is:
A)
Monosaccharides done
clear
B)
Homopolysaccharides done
clear
C)
Mucopolysaccharides done
clear
D)
Heteropolysaccharides done
clear
View Solution play_arrow
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question_answer55)
Insulin activates:
A)
Lipolysis done
clear
B)
Ketogenesis done
clear
C)
Glycogenolysis done
clear
D)
Glycolysis done
clear
View Solution play_arrow
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question_answer56)
Maltose is composed of:
A)
Glucose & Fructose done
clear
B)
Glucose & Glycogen done
clear
C)
Two molecules of Glucose done
clear
D)
Glycogen & Fructose done
clear
View Solution play_arrow
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question_answer57)
Which of the following is a reducing sugar?
A)
Sucrose done
clear
B)
Galactose done
clear
C)
Gluconic acid done
clear
D)
p-methyl galactoside done
clear
View Solution play_arrow
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question_answer58)
Bond present between two nucleosides of a polynucleotide is:
A)
Covalent bond done
clear
B)
Hydrogen bond done
clear
C)
Phosphodiester bond done
clear
D)
High energy phosphate bond done
clear
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question_answer59)
Which one of the following vegetable oils has a very low content of PUFA (polyunsaturated fatty acid)?
A)
Safflower oil done
clear
B)
Groundnut oil done
clear
C)
Coconut oil done
clear
D)
Mustard oil done
clear
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question_answer60)
Which is not a micronutrient?
A)
Zn done
clear
B)
Ca done
clear
C)
Cu done
clear
D)
Mo done
clear
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question_answer61)
Fats in the body are formed when:
A)
glycogen is formed from glucose. done
clear
B)
sugar level becomes stable in blood. done
clear
C)
extra glycogen storage in liver and muscles is stopped. done
clear
D)
All of the above done
clear
View Solution play_arrow
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question_answer62)
Bond between phosphate and sugar in a nucleotide is:
A)
H-bond done
clear
B)
Covalent bond done
clear
C)
Phosphodiester bond done
clear
D)
Sulphide bond done
clear
View Solution play_arrow
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question_answer63)
Which of the following is an amino acid, which is metabolised by the brain?
A)
Alanine done
clear
B)
Histidine done
clear
C)
Glycine done
clear
D)
Glutamic acid done
clear
View Solution play_arrow
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question_answer64)
Proteins are conducted in the body in the form of:
A)
Amino acids done
clear
B)
Natural proteins done
clear
C)
Enzymes done
clear
D)
Nucleic acids done
clear
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question_answer65)
The differences in D and L forms of sugars are based on:
A)
spatial arrangement of carbon atom to which the functional group is attached. done
clear
B)
configuration of H and OH groups around the penultimate carbon. done
clear
C)
if the plane of polarised light is rotated to left (levo), it is L form; and if shifted to right (dextro), it is D form. done
clear
D)
special arrangement of H and OH groups at the last carbon atom. done
clear
View Solution play_arrow
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question_answer66)
Which is not polysaccharide?
A)
Sucrose done
clear
B)
Starch done
clear
C)
Glycogen done
clear
D)
Cellulose done
clear
View Solution play_arrow
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question_answer67)
Which of the following hormone is a derivative of amino acid?
A)
Oestrogen done
clear
B)
Epinephrine done
clear
C)
Progestrone done
clear
D)
Prostaglandin done
clear
View Solution play_arrow
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question_answer68)
Cholesterol is a crucial molecule in animals as:
A)
it is necessary for survival. done
clear
B)
it is the energy source. done
clear
C)
it is helpful in hydrolysis of glycogen. done
clear
D)
it is a source of many vertebrate hormones and other steroids. done
clear
View Solution play_arrow
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question_answer69)
Inulin is a:
A)
Lipid done
clear
B)
Protein done
clear
C)
Polysaccharide done
clear
D)
Human insulin done
clear
View Solution play_arrow
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question_answer70)
Glycolysis cannot occur in the absence of:
A)
Ca done
clear
B)
Mg done
clear
C)
Mn done
clear
D)
Co done
clear
View Solution play_arrow
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question_answer71)
Which of the following is not a wax?
A)
Tripalmitin done
clear
B)
Myricyi palmitate done
clear
C)
Myricyi cerotate done
clear
D)
Lanolin done
clear
View Solution play_arrow
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question_answer72)
The number of essential amino acids in a man is:
A)
9 done
clear
B)
8 done
clear
C)
10 done
clear
D)
14 done
clear
View Solution play_arrow
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question_answer73)
How many pair of nucleotides are present in one helix of \[\beta \]- DNA?
A)
10 done
clear
B)
12 done
clear
C)
5 done
clear
D)
6 done
clear
View Solution play_arrow
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question_answer74)
All the following are pentoses, except:
A)
Arabinose done
clear
B)
Xylose done
clear
C)
Xylulose done
clear
D)
Mannose done
clear
View Solution play_arrow
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question_answer75)
DNA polymerase enzyme is required for the synthesis of:
A)
DNA from DNA done
clear
B)
DNA from RNA done
clear
C)
Both [a] and [b] done
clear
D)
DNA from nucleosides done
clear
View Solution play_arrow
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question_answer76)
There is no net synthesis of glucose from fatty acids, because of the irreversible nature of the reaction.
A)
Pyruvate to oxaloacetate done
clear
B)
Pyruvate to acetyl CoA done
clear
C)
Phosphoenol pyruvate to puruvate done
clear
D)
Oxaloacetate to phosphoenol pyruvate done
clear
View Solution play_arrow
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question_answer77)
Which of the following is a micronutrient?
A)
Copper done
clear
B)
Calcium done
clear
C)
Phosphorus done
clear
D)
Magnesium done
clear
View Solution play_arrow
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question_answer78)
Pentoses and hexoses are the most commonly:
A)
Disaccharides done
clear
B)
Monosaccharides done
clear
C)
Oilgosaccharides done
clear
D)
Polysaccharides done
clear
View Solution play_arrow
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question_answer79)
Specificity of protein is due to:
A)
Types of amino acid done
clear
B)
Sequence of amino acid done
clear
C)
Number of amino acid done
clear
D)
Quantity ofamino acid done
clear
View Solution play_arrow
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question_answer80)
In an experiment it was found that adenine constitutes 31 % and guanine 19%. The quantity of cytosine in this DNA is likely to be:
A)
19% done
clear
B)
40% done
clear
C)
31% done
clear
D)
50% done
clear
View Solution play_arrow
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question_answer81)
Which of the following mineral is essential for the normal excitability of cardiac muscles?
A)
Calcium ions done
clear
B)
Potassium ions done
clear
C)
Magnesium ions done
clear
D)
All of these done
clear
View Solution play_arrow