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 helps in detoxification of chemicals and drugs?
A) Liver
B) Lung
C) Kidney
D) Heart
✅ Correct Answer: A
Explanation: The liver detoxifies substances in the body.
Q: What is the name of the pigment that gives skin its color?
A) Melanin
B) Myosin
C) Keratin
D) Hemoglobin
✅ Correct Answer: A
Explanation: Melanin determines the pigmentation of skin.
Q: Which is the smallest bone in the human body?
A) Femur
B) Stapes
C) Tibia
D) Radius
✅ Correct Answer: B
Explanation: The stapes, located in the ear, is the smallest bone.
Q: What structure connects muscles to bones?
A) Nerves
B) Tendons
C) Ligaments
D) Cartilage
✅ Correct Answer: B
Explanation: Tendons attach muscles to bones.
Q: What is the primary function of red blood cells?
A) Regulate hormones
B) Fight infection
C) Blood clotting
D) Transport oxygen
✅ Correct Answer: D
Explanation: Red blood cells carry oxygen to body tissues.