Bio q paper class 10

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Class 10 Biology Test – CBSE 2025–26

Class 10 Biology – Unit Test

Total Time: 1 Hour    Maximum Marks: 40

Section A: MCQs – Attempt online (20 × 1 = 20 marks)
Section B: Subjective – Write answers in your copy (20 marks)

Section A – MCQs

Correct Answers:

  1. Cerebellum
  2. Gas exchange
  3. Auxin
  4. Fertilisation
  5. Dominant
  6. Nephron
  7. RBC
  8. Amoeba
  9. Chloroplast
  10. Artery
  11. Nucleus
  12. Water
  13. Survival
  14. 23
  15. Producers
  16. COVID-19
  17. Leaves
  18. Spinal cord
  19. Genetics
  20. Food waste

Section B – Subjective (Write in Copy)

  1. Life Processes: Explain how respiration and photosynthesis are interdependent processes. (4)
  2. Case-Based: A student touched a hot object and immediately withdrew the hand. Explain the biological pathway involved and name the parts. (4)
  3. Competency-Based: Why is sexual reproduction considered important for evolution? Explain with two reasons. (4)
  4. Heredity: State Mendel’s law of dominance. Explain with a suitable cross. (4)
  5. Environmental Biology: “Non-biodegradable waste is a threat to ecosystem stability.” Justify the statement. (4)
Prepared as per CBSE Class X Biology (2025–26) | Competency-Based Assessment

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