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 human organ filters waste from the blood?
A) Heart
B) Liver
C) Kidney
D) Lung
Q: Which is the longest bone in the human body?
A) Radius
B) Tibia
C) Femur
D) Humerus
Q: Which disease is caused by deficiency of insulin?
A) Scurvy
B) Asthma
C) Cancer
D) Diabetes
Q: What is the function of platelets?
A) Transport nutrients
B) Carry oxygen
C) Fight infection
D) Blood clotting
Q: What is the normal pH of human blood?
A) 8.5
B) 7.4
C) 6.0
D) 5.5
Q: Which organ helps in detoxification of chemicals and drugs?
A) Liver
B) Lung
C) Kidney
D) Heart
Q: What is the name of the pigment that gives skin its color?
A) Melanin
B) Myosin
C) Keratin
D) Hemoglobin
Q: Which is the smallest bone in the human body?
A) Femur
B) Stapes
C) Tibia
D) Radius
Q: What structure connects muscles to bones?
A) Nerves
B) Tendons
C) Ligaments
D) Cartilage
Q: What is the primary function of red blood cells?
A) Regulate hormones
B) Fight infection
C) Blood clotting
D) Transport oxygen