Biology New MCQs

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1. Which organelle is known as the “powerhouse of the cell”?
(A) Ribosome
(B) Golgi apparatus
(C) Mitochondria
(D) Lysosome

2. Which biomolecule is responsible for storing genetic information?
(A) Lipids
(B) Proteins
(C) DNA
(D) Carbohydrates

3. What is the basic functional unit of the kidney?
(A) Nephron
(B) Neuron
(C) Alveolus
(D) Sarcomere

4. Which process involves the movement of water across a semipermeable membrane?
(A) Active transport
(B) Osmosis
(C) Diffusion
(D) Endocytosis

5. Which vitamin is essential for blood clotting?
(A) Vitamin C
(B) Vitamin D
(C) Vitamin K
(D) Vitamin B12

6. In which part of the cell does photosynthesis occur?
(A) Ribosomes
(B) Mitochondria
(C) Nucleus
(D) Chloroplast

7. Which blood group is known as the universal donor?
(A) AB+
(B) B+
(C) A–
(D) O–

8. The longest bone in the human body is the:
(A) Tibia
(B) Femur
(C) Humerus
(D) Fibula

9. Which enzyme is present in saliva and helps digest starch?
(A) Amylase
(B) Lipase
(C) Pepsin
(D) Trypsin

10. What is the primary pigment involved in photosynthesis?
(A) Xanthophyll
(B) Chlorophyll
(C) Melanin
(D) Carotene