General Biology MCQs

By: Prof. Dr. Fazal Rehman | Last updated: April 16, 2025

1. What is the basic unit of life?
(A) Atom
(B) Molecule
(C) Cell
(D) Tissue

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

3. In which organelle does cellular respiration occur?
(A) Chloroplast
(B) Mitochondrion
(C) Golgi apparatus
(D) Ribosome

4. Which of the following is not a type of RNA?
(A) mRNA
(B) tRNA
(C) rRNA
(D) dRNA

5. What is the powerhouse of the cell?
(A) Ribosome
(B) Nucleus
(C) Mitochondrion
(D) Endoplasmic reticulum

6. What is the process by which green plants produce their own food?
(A) Respiration
(B) Photosynthesis
(C) Fermentation
(D) Transpiration

7. Which blood cells help fight infections?
(A) Red blood cells
(B) Platelets
(C) White blood cells
(D) Plasma

8. What is the structural and functional unit of the nervous system?
(A) Nephron
(B) Neuron
(C) Axon
(D) Dendrite

9. Which organ in the human body produces insulin?
(A) Liver
(B) Pancreas
(C) Kidney
(D) Spleen

10. Which gas is released during photosynthesis?
(A) Carbon dioxide
(B) Oxygen
(C) Nitrogen
(D) Hydrogen