Biology MCQs – Nursing/Medical
Students
Exam Preparation
Study Guide for Students
,Biology MCQs – Nursing/Medical
Students
Multiple Choice Questions (MCQs)
1. Which organelle is known as the “powerhouse of the cell”?
a) Nucleus
b) Ribosome
c) Mitochondria
d) Golgi apparatus
Answer: c
2. DNA replication occurs during which phase of the cell cycle?
a) G1 phase
b) S phase
c) G2 phase
d) M phase
Answer: b
3. Which macromolecule is the main source of energy for cells?
a) Lipids
b) Proteins
c) Carbohydrates
d) Nucleic acids
Answer: c
4. Which blood cells are responsible for transporting oxygen?
a) Leukocytes
b) Platelets
c) Erythrocytes
d) Plasma
Answer: c
5. Which part of the brain controls balance and coordination?
a) Cerebrum
b) Cerebellum
c) Medulla oblongata
d) Hypothalamus
Answer: b
,6. Which vitamin is synthesized in the skin under sunlight?
a) Vitamin A
b) Vitamin B12
c) Vitamin D
d) Vitamin K
Answer: c
7. Which type of joint is freely movable?
a) Fibrous
b) Cartilaginous
c) Synovial
d) Suture
Answer: c
8. Hemoglobin is a protein found in:
a) Plasma
b) Red blood cells
c) White blood cells
d) Platelets
Answer: b
9. Which enzyme breaks down starch into sugar?
a) Lipase
b) Amylase
c) Protease
d) Lactase
Answer: b
10.The functional unit of the kidney is called:
a) Neuron
b) Nephron
c) Alveoli
d) Lobule
Answer: b
11.Which blood type is considered the universal donor?
a) A
b) B
c) AB
d) O
Answer: d
, 12.Which organ produces bile?
a) Gallbladder
b) Liver
c) Pancreas
d) Small intestine
Answer: b
13.Which hormone regulates blood sugar by lowering it?
a) Glucagon
b) Insulin
c) Cortisol
d) Adrenaline
Answer: b
14.Which of the following is not a part of the respiratory system?
a) Trachea
b) Bronchi
c) Alveoli
d) Esophagus
Answer: d
15.Which type of immunity is acquired after vaccination?
a) Passive immunity
b) Active immunity
c) Innate immunity
d) Natural immunity
Answer: b
16.Which blood cells help fight infections?
a) Erythrocytes
b) Leukocytes
c) Platelets
d) Plasma
Answer: b
17.Which structure carries impulses away from the neuron cell body?
a) Dendrite
b) Axon
c) Synapse
d) Soma
Answer: b
Students
Exam Preparation
Study Guide for Students
,Biology MCQs – Nursing/Medical
Students
Multiple Choice Questions (MCQs)
1. Which organelle is known as the “powerhouse of the cell”?
a) Nucleus
b) Ribosome
c) Mitochondria
d) Golgi apparatus
Answer: c
2. DNA replication occurs during which phase of the cell cycle?
a) G1 phase
b) S phase
c) G2 phase
d) M phase
Answer: b
3. Which macromolecule is the main source of energy for cells?
a) Lipids
b) Proteins
c) Carbohydrates
d) Nucleic acids
Answer: c
4. Which blood cells are responsible for transporting oxygen?
a) Leukocytes
b) Platelets
c) Erythrocytes
d) Plasma
Answer: c
5. Which part of the brain controls balance and coordination?
a) Cerebrum
b) Cerebellum
c) Medulla oblongata
d) Hypothalamus
Answer: b
,6. Which vitamin is synthesized in the skin under sunlight?
a) Vitamin A
b) Vitamin B12
c) Vitamin D
d) Vitamin K
Answer: c
7. Which type of joint is freely movable?
a) Fibrous
b) Cartilaginous
c) Synovial
d) Suture
Answer: c
8. Hemoglobin is a protein found in:
a) Plasma
b) Red blood cells
c) White blood cells
d) Platelets
Answer: b
9. Which enzyme breaks down starch into sugar?
a) Lipase
b) Amylase
c) Protease
d) Lactase
Answer: b
10.The functional unit of the kidney is called:
a) Neuron
b) Nephron
c) Alveoli
d) Lobule
Answer: b
11.Which blood type is considered the universal donor?
a) A
b) B
c) AB
d) O
Answer: d
, 12.Which organ produces bile?
a) Gallbladder
b) Liver
c) Pancreas
d) Small intestine
Answer: b
13.Which hormone regulates blood sugar by lowering it?
a) Glucagon
b) Insulin
c) Cortisol
d) Adrenaline
Answer: b
14.Which of the following is not a part of the respiratory system?
a) Trachea
b) Bronchi
c) Alveoli
d) Esophagus
Answer: d
15.Which type of immunity is acquired after vaccination?
a) Passive immunity
b) Active immunity
c) Innate immunity
d) Natural immunity
Answer: b
16.Which blood cells help fight infections?
a) Erythrocytes
b) Leukocytes
c) Platelets
d) Plasma
Answer: b
17.Which structure carries impulses away from the neuron cell body?
a) Dendrite
b) Axon
c) Synapse
d) Soma
Answer: b
