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Chemistry

NEET Chemistry / AI question bank / NCERT Class 12 / Biomolecules

Biomolecules: NEET questions with solutions

NEET tests the evidence for glucose structure, anomers and glycosidic links in sucrose, maltose and lactose, reducing versus non-reducing sugars, levels of protein structure, denaturation, vitamins and their deficiency diseases, and DNA versus RNA. Marks are lost on which sugars are reducing and on which vitamins are water-soluble.

Also called: carbohydrates, proteins and nucleic acids · biomolecules chemistry

Revise first: NCERT notes for Biomolecules

Questions

10 questions / answers after you pick

  1. Q1Which sugar is non-reducing?

    DisaccharidesEasySingle correct

  2. Q2Which vitamin is water-soluble and must therefore be supplied regularly in the diet?

    VitaminsEasySingle correct

  3. Q3Which base is found in RNA but not in DNA?

    Nucleic acidsEasySingle correct

  4. Q4Glucose forms a pentaacetate on acetylation with acetic anhydride. What does this show about its structure?

    Structure of glucoseMediumSingle correct

  5. Q5α-D-Glucose and β-D-glucose are called anomers. How do they differ?

    Ring forms of glucoseMediumSingle correct

  6. Q6When an egg is boiled, the albumin coagulates. Which level of protein structure is NOT changed?

    ProteinsMediumSingle correct

  7. Q7Fructose is a ketose, yet it is classed as a reducing sugar. Judge the Assertion (A) and the Reason (R) below.

    Ring forms of glucose and fructoseMediumAssertion–Reason

  8. Q8Amino acids carry both an amino group and a carboxyl group. Which of the statements below are correct?

    Amino acidsMediumStatement based

  9. Q9Deficiency of each vitamin listed in List I causes a characteristic disease. Match each vitamin with the deficiency disease in List II.

    VitaminsHardMatch the following

  10. Q10In a sample of double-stranded DNA, 22% of the bases are guanine. What percentage of the bases are adenine?

    Nucleic acidsHardSingle correct

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