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Biomolecules (B) — NEET UG Botany PYQs

572 previous year questions from Biomolecules (B) with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

572 questionsBotanySolutions on every page
1

Which of the following is the most abundant protein in the whole of the biosphere?

NEET 2023 Solution View → 2

Among the following choose the correct epimers.

JIPMER 2019 Solution View → 3

Citrulline structure

JIPMER 2019 Solution View → 4

Which of the following is not a derivative of cholesterol?

AIIMS 2018 Solution View → 5

In which one of the following sets of three items each belong to the category mentioned against them?

AIIMS 2018 Solution View → 6

Which of the following is not a derivative of cholesterol?

JIPMER 2018 Solution View → 7

Which is the 21 st amino acid?

JIPMER 2018 Solution View → 8

Proteins are needed in diet because

JIPMER 2018 Solution View → 9

Non-essential amino acid is

JIPMER 2018 Solution View → 10

Omega 3 fatty acid is present in

JIPMER 2018 Solution View → 11

Match the tissues/molecules mentioned in column I with those of their degrading enzymes mentioned in column II and select the correct option from the given codes.

AIIMS 2017 Solution View → 12

Assertion: Secondary metabolites are produced in small quantities and their extraction from the plant is difficult and expensive. Reason : Secondary metabolites can be commercially

AIIMS 2017 Solution View → 13

Macromolecule chitin is

JIPMER 2017 Solution View → 14

Match Column - I with Column - II and select the correct option from codes given below.

AIIMS 2015 Solution View → 15

Assertion : Secondary metabolites are produced in small quantities and their extraction from the plant is difficult and expensive. Reason: Secondary metabolites can be commercially

AIIMS 2015 Solution View → 16

Cholesterol is a precursor for each of the following except

AIIMS 2015 Solution View → 17

What base is responsible for hot spots for spontaneous point mutations?

JIPMER 2015 Solution View → 18

If the free energy change of a reaction is greater than zero, then the reaction is

JIPMER 2015 Solution View → 19

Match the biological molecule listed under column I with their biological function listed under column II. Choose the answer which gives correct combination of alphabets of the two

JIPMER 2015 Solution View → 20

The enzyme hexokinase which catalysis glucose to a glucose-6-phosphate in glycolysis is inhibited by glucose-6-phosphate. This is an example of I. competitive inhibition II. non-co

JIPMER 2015 Solution View → 21

Match the enzyme in column I with its function in column II and choose the correct option. array |l|l| Column I & Column II A. - galactosidase & 1. Joining of DNA fragments B. Perm

JIPMER 2014 Solution View → 22

Which of the following represent uridylic acid?

JIPMER 2014 Solution View → 23

The statement All biological catalysts are proteins is no longer valid after the discovery of

JIPMER 2014 Solution View → 24

Many elements are found in living organisms either free or in form of compounds. One of the following is negligible is living organisms

JIPMER 2014 Solution View → 25

Given below is the chemical formula of

JIPMER 2014 Solution View → 26

Phage genome site on bacterial chromosome resulted in the structure

JIPMER 2014 Solution View → 27

Jacob and Monod named some enzymes as allosteric whose activity is regulated by

JIPMER 2014 Solution View → 28

From the following groups, select the one which has only secondary metabolites?

AIIMS 2013 Solution View → 29

Assertion : All proteinecous enzymes have a three-dimensional structure. Reason : The secondary structure of protein is according to amino acid present inside the polypeptides.

AIIMS 2013 Solution View → 30

Which one out of (a) to (d) given below correctly represents the structural formula of the basic amino acid?

JIPMER 2013 Solution View → 31

Which one of the following structural formula of two organic compounds is correctly identified along with its related function?

JIPMER 2013 Solution View → 32

Lactose is composed of

JIPMER 2013 Solution View → 33

Select the option having all correctly matched pairs. A. Alkaloids (i) Carotenoid; Anthocyanin B. Pigments (ii) Vinblastin; curcumin C. Drugs (iii) Morphine; Codeine

AIIMS 2012 Solution View → 34

In a normal adult, ascending order of concentration of following molecules is

AIIMS 2012 Solution View → 35

Nucleotides are formed by

JIPMER 2012 Solution View → 36

Assertion : Glycerides are important nutrients for body. Reason : Glycerides are hydrolysed into glycerol and fatty acids which are further absorbed in intestine by the formation o

AIIMS 2011 Solution View → 37

Assertion : Enzymes lower down the activation energy of the reactant molecule to make its transition into product easier. Reason : Enzymes are highly substrate specific catalysts.

AIIMS 2011 Solution View → 38

An example of competitive inhibition of an enzyme is the inhibition of

JIPMER 2011 Solution View → 39

During strenuous exercise, glucose is converted into

JIPMER 2010 Solution View → 40

Which one is component of Ornithine cycle?

JIPMER 2010 Solution View → 41

Which of the following amino acids is not optically active?

JIPMER 2010 Solution View → 42

Enzymes, vitamins and hormones can be classified into a single category of biological chemicals because of all of these

AIIMS 2008 Solution View → 43

Assertion : Competitive inhibitor is also called as substrate analogue. Reason : It resembles the enzymes in structure.

AIIMS 2008 Solution View → 44

There was so much......material in the speech that it was difficult to know what the speaker wanted to say.

JIPMER 2008 Solution View → 45

Paragraph: Read the following passage carefully and answer the questions given below it. Journalism combines writing with news gathering and interpretation. While the journalist's

JIPMER 2008 Solution View → 46

Cell theory was proposed by

JIPMER 2008 Solution View → 47

Pneumatic bones are expected to be found in

JIPMER 2008 Solution View → 48

The back bone of RNA consists of which of the following sugar?

JIPMER 2008 Solution View → 49

Which of the following is not a pyrimidine ?

JIPMER 2008 Solution View → 50

An example of competitive inhibition of an enzyme is the inhibition of

AIIMS 2007 Solution View → 51

Which of the following contain ( -1,4 ) linkage?

AIIMS 2007 Solution View → 52

Carbohydrates, the most abundant biomolecules on earth, are produced by:

JIPMER 2007 Solution View → 53

Which of the following is the simplest amino acid?

JIPMER 2007 Solution View → 54

The figure given below shows three velocitysubstrate concentration curves for an enzyme reaction. What do the curves a, b , and c depict respectively?

AIIMS 2006 Solution View → 55

A nucleotide is a molecule consisting of a :

JIPMER 2006 Solution View → 56

Non-protein part of enzyme is known as :

JIPMER 2006 Solution View → 57

In DNA, which is absent?

JIPMER 2006 Solution View → 58

Which one of the following statements regarding enzyme inhibition is correct?

AIIMS 2005 Solution View → 59

The basic unit of chitin is

JIPMER 2004 Solution View → 60

Arachidonic acid is

JIPMER 2004 Solution View → 61

Continued consumption of a diet rich in butter, red meat and eggs for a long period may lead to:

AIIMS 2003 Solution View → 62

An example of competitive inhibition of an enzyme is the inhibition of:

AIIMS 2003 Solution View → 63

Assertion : Living organisms are regarded as closed systems. Reason : Energy of living organisms cannot be lost or gained from the environment.

AIIMS 2002 Solution View → 64

Assertion : Study of biology requires basic knowledge of chemistry and physics. Reason : Living organisms are made up of atoms and molecules which follow chemical and physical laws

AIIMS 2002 Solution View → 65

What are proteins made of?

NEET Solution View → 66

What is the source of essential amino acids for humans?

NEET Solution View → 67

What is the most abundant protein in the animal world?

NEET Solution View → 68

What is the common feature of all compounds found in the acid soluble pool?

NEET Solution View → 69

What is the difference between micromolecules and biomacromolecules?

NEET Solution View → 70

Why are lipids considered part of the macromolecular fraction?

NEET Solution View → 71

What is the acid soluble pool representative of?

NEET Solution View → 72

What are biomolecules commonly referred to as?

NEET Solution View → 73

What is the difference between primary and secondary metabolites?

NEET Solution View → 74

What are some examples of secondary metabolites that are useful to human welfare?

NEET Solution View → 75

Do secondary metabolites have any ecological importance?

NEET Solution View → 76

What is the main characteristic of lipids?

NEET Solution View → 77

What is the R group in a fatty acid?

NEET Solution View → 78

Where are phospholipids found in the body?

NEET Solution View → 79

What type of fatty acid has 16 carbon atoms including the carboxyl carbon?

NEET Solution View → 80

What type of lipid is found in cell membranes?

NEET Solution View → 81

What is the ionizable nature of amino acids?

NEET Solution View → 82

What are the three functional groups of amino acids?

NEET Solution View → 83

What is the R group in proteinaceous amino acids?

NEET Solution View → 84

How many types of amino acids occur in proteins?

NEET Solution View → 85

What type of elements are found in the ash?

NEET Solution View → 86

What type of compounds can be seen in the acid-soluble fraction?

NEET Solution View → 87

What is the purpose of elemental analysis?

NEET Solution View → 88

What is the purpose of extracting compounds from living tissues?

NEET Solution View → 89

What is the purpose of analyzing the isolated compound?

NEET Solution View → 90

What is the term used for carbon compounds obtained from living tissues?

NEET Solution View → 91

What is the purpose of burning the tissue?

NEET Solution View → 92

What is the term used for the remaining material after the tissue is dried?

NEET Solution View → 93

What is obtained from straining the thick slurry obtained from grinding living tissue in trichloroacetic acid using a mortar and pestle?

NEET Solution View → 94

What is the process of finding the type of organic compounds found in living organisms called?

NEET Solution View → 95

What is the result of straining the slurry through a cheesecloth or cotton?

NEET Solution View → 96

Which of the following is true about the elements present in a sample of earth's crust and living tissue?

NEET Solution View → 97

What is the non-reducing end of a polysaccharide chain?

NEET Solution View → 98

What is the color of starch-I 2 ?

NEET Solution View → 99

What is the reducing end of a polysaccharide chain?

NEET Solution View → 100

What is glycogen in animals?

NEET Solution View → 101

What is the function of starch in plants?

NEET Solution View → 102

What is cellulose?

NEET Solution View → 103

What are polysaccharides?

NEET Solution View → 104

What type of bond links amino acids in a polypeptide or a protein?

NEET Solution View → 105

What type of bond links individual monosaccharides in a polysaccharide?

NEET Solution View → 106

What type of bond links the 3’-carbon of one sugar of one nucleotide to the 5’-carbon of the sugar of the succeeding nucleotide in a nucleic acid?

NEET Solution View → 107

What is the famous Watson-Crick model for DNA?

NEET Solution View → 108

What is the direction of the two strands of polynucleotides in DNA according to the Watson-Crick model?

NEET Solution View → 109

What is the backbone of DNA in the Watson-Crick model formed by?

NEET Solution View → 110

What do A and G of one strand of DNA compulsorily base pair with?

NEET Solution View → 111

How many hydrogen bonds are there between A and T in DNA?

NEET Solution View → 112

How many base pairs does one full turn of the helical strand in DNA involve?

NEET Solution View → 113

What is the pitch of B-DNA?

NEET Solution View → 114

What is the rise per base pair in B-DNA?

NEET Solution View → 115

What is an active site in an enzyme?

NEET Solution View → 116

What type of Biomolecule is an enzyme?

NEET Solution View → 117

What is the difference between enzyme catalysts and inorganic catalysts?

NEET Solution View → 118

What is thermal stability in enzymes?

NEET Solution View → 119

Can enzymes isolated from thermophilic organisms retain their catalytic power at high temperatures?

NEET Solution View → 120

What is the purpose of the formation of the ‘ES’ complex?

NEET Solution View →
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