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 animal is a cold-blooded vertebrate?
A) Whale
B) Pigeon
C) Dog
D) Frog
✅ Correct Answer: D
Explanation: Frogs are ectothermic, adjusting to environmental temperatures.
Q: Which part of the cell contains genetic material?
A) Ribosome
B) Nucleus
C) Mitochondria
D) Cytoplasm
✅ Correct Answer: B
Explanation: The nucleus stores DNA, the genetic blueprint of the cell.
Q: Which organelle is known as the powerhouse of the cell?
A) Nucleus
B) Mitochondria
C) Ribosome
D) Golgi apparatus
✅ Correct Answer: B
Explanation: Mitochondria produce ATP through cellular respiration.
Q: What type of blood cells fight infections?
A) Platelets
B) Plasma
C) White blood cells
D) Red blood cells
✅ Correct Answer: C
Explanation: White blood cells defend the body against pathogens.
Q: Which macromolecule is the main source of energy for the body?
A) Carbohydrates
B) Fats
C) Nucleic acids
D) Proteins
✅ Correct Answer: A
Explanation: Carbohydrates are broken down into glucose for energy.