Biology MCQs
Biology MCQs cover cell biology, botany, zoology, genetics, microbiology, and physiology. Ideal for MDCAT, CSS, PMS, FPSC, and PPSC exams, they boost conceptual clarity and analytical skills for academic and competitive success.
Q: Which organ is responsible for detoxifying chemicals?
A) Liver
B) Heart
C) Brain
D) Lung
✅ Correct Answer: A
Explanation: The liver detoxifies harmful substances.
Q: What is the function of hemoglobin?
A) Carry oxygen
B) Fight infection
C) Digest food
D) Clot blood
✅ Correct Answer: A
Explanation: Hemoglobin in RBCs binds and transports oxygen.
Q: Which plant tissue transports food?
A) Xylem
B) Phloem
C) Epidermis
D) Cambium
✅ Correct Answer: B
Explanation: Phloem carries sugars and nutrients.
Q: Which process removes waste from the body?
A) Digestion
B) Excretion
C) Absorption
D) Respiration
✅ Correct Answer: B
Explanation: Excretion eliminates metabolic waste.
Q: What do we call the fusion of male and female gametes?
A) Pollination
B) Germination
C) Fertilization
D) Fragmentation
✅ Correct Answer: C
Explanation: Fertilization is the union of gametes to form a zygote.