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Biomolecules: proteins, carbohydrates, lipids, nucleic acids

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Every question from past board papers on Biomolecules: proteins, carbohydrates, lipids, nucleic acids, newest paper first. Open any question for its full worked answer.

NEET UG 2025 question paper (official, booklet 45)

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  1. Match List I with List II.

    List I: A. Adenosine B. Adenylic acid C. Adenine D. Alanine

    List II: I. Nitrogen base II. Nucleotide III. Nucleoside IV. Amino acid

    Choose the option with all correct matches.

    4 marks · See worked answer →

NEET UG 2024 question paper (official, booklet S6)

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  1. Lecithin, a small molecular weight organic compound found in living tissues, is an example of:

    4 marks · See worked answer →

  2. Match List I with List II

    List I: A. GLUT-4; B. Insulin; C. Trypsin; D. Collagen

    List II: I. Hormone; II. Enzyme; III. Intercellular ground substance; IV. Enables glucose transport into cells

    Choose the correct answer from the options given below:

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NEET UG 2023 question paper (official, booklet G6)

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  1. Cellulose does not form blue colour with Iodine because

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  2. Given below are two statements:

    Statement I: A protein is imagined as a line, the left end represented by first amino acid (C-terminal) and the right end represented by last amino acid (N-terminal)

    Statement II: Adult human haemoglobin, consists of 4 subunits (two subunits of \(\alpha\) type and two subunits of \(\beta\) type.)

    In the light of the above statements, choose the correct answer from the options given below:

    4 marks · See worked answer →

NEET UG 2022 question paper (official, booklet R6)

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  1. Exoskeleton of arthropods is composed of :

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  2. Read the following statements on lipids and find out correct set of statements :

    (a) Lecithin found in the plasma membrane is a glycolipid

    (b) Saturated fatty acids possess one or more c=c bonds

    (c) Gingely oil has lower melting point, hence remains as oil in winter

    (d) Lipids are generally insoluble in water but soluble in some organic solvents

    (e) When fatty acid is esterified with glycerol, monoglycerides are formed

    Choose the correct answer from the options given below :

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  3. A dehydration reaction links two glucose molecules to produce maltose. If the formula for glucose is \(C_6H_{12}O_6\) then what is the formula for maltose ?

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  4. Match List - I with List - II.

    List - I (Biological Molecules): (a) Glycogen (b) Globulin (c) Steroids (d) Thrombin

    List - II (Biological functions): (i) Hormone (ii) Biocatalyst (iii) Antibody (iv) Storage product

    Choose the correct answer from the options given below :

    4 marks · See worked answer →

NEET UG 2021 question paper (official, booklet M4)

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  1. Which of the following are not secondary metabolites in plants ?

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  2. Match List - I with List - II.

    List - I | List - II

    (a) Protein | (i) C=C double bonds

    (b) Unsaturated fatty acid | (ii) Phosphodiester bonds

    (c) Nucleic acid | (iii) Glycosidic bonds

    (d) Polysaccharide | (iv) Peptide bonds

    Choose the correct answer from the options given below.

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  3. Identify the incorrect pair.

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  4. Following are the statements with reference to ‘lipids’.

    (a) Lipids having only single bonds are called unsaturated fatty acids.

    (b) Lecithin is a phospholipid.

    (c) Trihydroxy propane is glycerol.

    (d) Palmitic acid has 20 carbon atoms including carboxyl carbon.

    (e) Arachidonic acid has 16 carbon atoms.

    Choose the correct answer from the options given below.

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NEET UG 2020 question paper (official, booklet E1)

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  1. Identify the substances having glycosidic bond and peptide bond, respectively in their structure :

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  2. Secondary metabolites such as nicotine, strychnine and caffeine are produced by plants for their :

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  3. Identify the basic amino acid from the following.

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  4. Which one of the following is the most abundant protein in the animals ?

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NEET UG 2019 question paper (official, booklet P1)

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  1. Concanavalin A is :

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NEET UG 2018 question paper (official, booklet EE)

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  1. The two functional groups characteristic of sugars are

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NEET UG 2016 Phase 1 question paper (official, booklet A)

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  1. The two polypeptides of human insulin are linked together by :

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  2. Which one of the following statements is wrong ?

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  3. A typical fat molecule is made up of :

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NEET UG 2016 Phase 2 question paper (official, booklet ZZ)

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  1. Which of the following is the least likely to be involved in stabilizing the three-dimensional folding of most proteins?

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