Biology MCQ Questions with answers

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Here Important Biology MCQ questions are added which are frequently asked in almost all the examinations. You can check the correct answer of any question on clicking the show answer button. The Correct answer will be displayed below. You can share any question with your friends on whatsapp by tapping Share button.

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📊 Biology
Q. Which part of the eye focuses light onto the retina?
  • (A) Cornea
  • (B) Lens
  • (C) Iris
  • (D) Pupil
💬 Discuss
✅ Correct Answer: (B) Lens

Explanation: The lens changes shape to focus light rays onto the retina for clear vision.

📊 Biology
Q. Which type of immunity is gained after vaccination?
  • (A) Innate immunity
  • (B) Natural immunity
  • (C) Artificial immunity
  • (D) Passive immunity
💬 Discuss
✅ Correct Answer: (C) Artificial immunity

Explanation: Vaccination introduces antigens into the body, stimulating the immune system to develop protection.

📊 Biology
Q. Which part of the plant is responsible for transpiration?
  • (A) Roots
  • (B) Stem
  • (C) Leaves
  • (D) Flowers
💬 Discuss
✅ Correct Answer: (C) Leaves

Explanation: Leaves lose water vapor through stomata, which is the main site of transpiration.

📊 Biology
Q. Which component of food is essential for body growth and repair?
  • (A) Carbohydrates
  • (B) Proteins
  • (C) Fats
  • (D) Vitamins
💬 Discuss
✅ Correct Answer: (B) Proteins

Explanation: Proteins are required for growth, repair of tissues, and production of enzymes and hormones.

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