Start learning →

MP Board Class 12 (MPBSE) Biomolecules — practice questions

Explore 3 free Biomolecules questions in MP Board Class 12 (MPBSE) Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

Practise Biomolecules with Quill →

Biomolecules questions and exercises with answers

Showing questions 1–3 of 3.

Glucose in open-chain form has a:Read the answer and worked solution →The disease scurvy results from deficiency of:Read the answer and worked solution →In DNA, the complementary base pair to adenine (A) is:Read the answer and worked solution →

Worked practice questions

Glucose in open-chain form has a:

  1. Ketone group at C-2, like fructose has in the same molecule
  2. Aldehyde group at C-1, with four chiral carbons in the chain
  3. Carboxylic acid group at C-1, with five hydroxyl groups
  4. Ester group at C-6, with a cyclic structure in solid form
Show answer and solution

Correct answer: B. Aldehyde group at C-1, with four chiral carbons in the chain

Glucose open chain: aldehyde at C-1 and -OH at C-2 to C-5 with -CH$_2$OH at C-6; four chiral C.

Open this question →

The disease scurvy results from deficiency of:

  1. Vitamin C, found in citrus fruits like orange and lemon
  2. Vitamin D, the bone vitamin produced under sunlight too
  3. Vitamin B12, important for red blood cells in the body
  4. Vitamin A, the vitamin for vision in dim light conditions
Show answer and solution

Correct answer: A. Vitamin C, found in citrus fruits like orange and lemon

Scurvy is due to vitamin C (ascorbic acid) deficiency classic in sailors before they ate citrus.

Open this question →

In DNA, the complementary base pair to adenine (A) is:

  1. Guanine (G), paired with the bigger purine base on chain
  2. Cytosine (C), the other pyrimidine in the helix structure
  3. Uracil (U), the base used only in DNA double helix
  4. Thymine (T), via two hydrogen bonds in DNA double helix
Show answer and solution

Correct answer: D. Thymine (T), via two hydrogen bonds in DNA double helix

**In DNA:** A-T pair via 2 H-bonds; G-C pair via 3 H-bonds. (U replaces T in RNA only.)

Open this question →

How to practise

  1. Choose a Biomolecules question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Chemistry topics

Coordination CompoundsNamed ReactionsAlcohols Phenols EthersChemical KineticsSolid StateAlkenesAtomic combinationsAtoms and Elements