Biology MCQs
Biology MCQs are a vital tool for students preparing for medical entrance exams like MDCAT, as well as competitive tests like CSS, PMS, FPSC, and PPSC. This section includes expertly designed multiple-choice questions that span major areas of biology, including cell biology, botany, zoology, genetics, microbiology, and human physiology. With each question crafted to improve conceptual clarity and analytical skills, this resource helps users achieve high scores in both academic and professional exams. Biology MCQs are also useful for students of FSc Pre-Medical, BSc, and other life science programs. Each question is aligned with the latest curriculum and designed according to the pattern of Pakistan’s competitive exams. Whether you are targeting entry tests, job assessments, or semester exams, our Biology MCQs offer reliable and result-oriented practice.
Q: What is the process by which cells divide?
A) Fission
B) Fertilization
C) Mitosis
D) Meiosis
✅ Correct Answer: C
Explanation: Mitosis creates identical daughter cells.
Q: Which system controls body functions through hormones?
A) Endocrine system
B) Circulatory system
C) Nervous system
D) Digestive system
✅ Correct Answer: A
Explanation: The endocrine system releases hormones for regulation.
Q: Which blood cells are responsible for clotting?
A) White cells
B) Plasma
C) Red cells
D) Platelets
✅ Correct Answer: D
Explanation: Platelets form clots to prevent bleeding.
Q: Which component of the blood carries nutrients?
A) Plasma
B) WBC
C) Platelets
D) RBC
✅ Correct Answer: A
Explanation: Plasma transports nutrients, hormones, and waste.
Q: Where does digestion begin?
A) Liver
B) Small intestine
C) Mouth
D) Stomach
✅ Correct Answer: C
Explanation: Digestion starts in the mouth with enzymes and chewing.
Q: Which organ is responsible for producing insulin?
A) Pancreas
B) Spleen
C) Kidney
D) Liver
✅ Correct Answer: A
Explanation: The pancreas secretes insulin to regulate blood sugar.
Q: What is the role of enzymes?
A) Fight infection
B) Provide energy
C) Store fat
D) Speed up chemical reactions
✅ Correct Answer: D
Explanation: Enzymes act as catalysts in biochemical reactions.
Q: What protects the end of bones at joints?
A) Fat
B) Ligaments
C) Cartilage
D) Tendons
✅ Correct Answer: C
Explanation: Cartilage provides cushioning at joints.
Q: Which vitamin helps absorb calcium?
A) Vitamin C
B) Vitamin K
C) Vitamin A
D) Vitamin D
✅ Correct Answer: D
Explanation: Vitamin D enhances calcium absorption for bone health.
Q: Which part of the brain controls balance?
A) Medulla
B) Cerebrum
C) Cerebellum
D) Thalamus
✅ Correct Answer: C
Explanation: The cerebellum coordinates balance and movement.