Class 12 · General Ability Test · CBSE Board · 2022–2025

Biology — Class 12 General Ability Test PYQs

49 questions from this chapter, asked in 4 Class 12 exams between 2022–2025 — every question paper set included, duplicates removed.

49questions
4Class 12 exams
2022–2025years covered
1 / 4mark values asked

Questions asked per year

Practice questions first 10 of 49 — free

Q1MCQ20251 mark

The lactic acid that gets accumulated in the muscle cells during rigorous exercise causing muscle cramps is produced from

(A)ATP
(B)Pyruvate✓ Correct
(C)Ethanol
(D)Glucose
Q2MCQ20251 mark

A chain of peptide containing linear sequences of amino acid linked by peptide bonds best represent the

(A)Primary structure✓ Correct
(B)Secondary structure
(C)Tertiary structure
(D)Quaternary structure
Q3MCQ20251 mark

Cambium is an example of

(A)Lateral meristem✓ Correct
(B)Apical meristem
(C)Intercalary meristem
(D)Permanent tissue
Q4MCQ20251 mark

Which is the correct base pairing found in a normal DNA molecule?

(A)Adenine pairs with Thymine✓ Correct
(B)Adenine pairs with Guanine
(C)Adenine pairs with Cytosine
(D)Thymine pairs with Guanine
Q5MCQ20251 mark

Clotting of blood involves which one among the following clotting proteins?

(A)Pathogen
(B)Fibrinogen✓ Correct
(C)Macrophage
(D)Phagocytes
Q6MCQ20251 mark

Initial discovery of antibiotic penicillin was done by

(A)Francis Crick
(B)Maurice Wilkins
(C)Charles Darwin
(D)Alexander Fleming✓ Correct
Q7MCQ20251 mark

The vector of malaria parasites is

(A)Male Anopheles mosquito
(B)Male Culex mosquito
(C)Female Anopheles mosquito✓ Correct
(D)Female Culex mosquito
Q8MCQ20251 mark

Which of the following pairs is/are correctly matched?

  1. Malaria : Mycobacterium
  2. TB : Plasmodium

Select the answer using the code given below :

(A)1 only
(B)2 only
(C)Both 1 and 2
(D)Neither 1 nor 2✓ Correct
Q9MCQ20251 mark

Vitamin B1 is also known as

(A)Riboflavin
(B)Thiamin✓ Correct
(C)Retinol
(D)Tocopherol
Q10MCQ20244 marks

Which one among the following is the source of energy in cells ?

(A)ADP
(B)ATP✓ Correct
(C)AMP
(D)NAD

Why practise Biology PYQs?

Biology has appeared in 4 Class 12 General Ability Test exams we track between 2022–2025, with questions worth 1, 4 marks. CBSE Board examiners consistently reuse concepts and question patterns from this topic — practising its previous year questions is the most reliable way to know exactly what to expect in your exam.

Other General Ability Test chapters