1. Which structure is responsible for the production of
insulin?
A) Liver
B) Kidneys
C) Pancreas
D) Small intestine
Answer: C) Pancreas
Rationale: The pancreas contains specialized cells known as the
islets of Langerhans, which produce insulin, a hormone that
helps regulate blood glucose levels.
2. What is the main function of the red blood cells?
A) To fight infection
B) To transport oxygen
C) To clot blood
D) To produce antibodies
Answer: B) To transport oxygen
Rationale: Red blood cells (RBCs) contain hemoglobin, a
protein that binds oxygen in the lungs and releases it to tissues
throughout the body.
3. Which part of the brain is primarily responsible for
regulating heart rate and breathing?
A) Cerebellum
, B) Medulla oblongata
C) Thalamus
D) Hypothalamus
Answer: B) Medulla oblongata
Rationale: The medulla oblongata is located in the brainstem
and controls vital functions such as heart rate, breathing, and
blood pressure.
4. Which of the following is NOT a function of the skeletal
system?
A) Protection of vital organs
B) Storage of minerals
C) Blood cell production
D) Regulation of body temperature
Answer: D) Regulation of body temperature
Rationale: The skeletal system provides structural support,
protects organs, stores minerals (like calcium), and produces
blood cells in the bone marrow. It does not directly regulate
body temperature.
5. What type of muscle is responsible for voluntary
movements?
A) Cardiac muscle
B) Skeletal muscle
, C) Smooth muscle
D) None of the above
Answer: B) Skeletal muscle
Rationale: Skeletal muscle is under voluntary control and is
responsible for the movement of bones and body parts.
6. Which of the following is a function of the large intestine?
A) Absorption of nutrients
B) Absorption of water and electrolytes
C) Digestion of proteins
D) Secretion of bile
Answer: B) Absorption of water and electrolytes
Rationale: The primary function of the large intestine is to
absorb water and electrolytes from the indigestible food matter,
forming solid waste for elimination.
7. Which of the following is the correct sequence of blood
flow through the heart?
A) Right atrium → Right ventricle → Left atrium → Left
ventricle
B) Right atrium → Left atrium → Right ventricle → Left
ventricle
C) Left atrium → Left ventricle → Right atrium → Right
ventricle
insulin?
A) Liver
B) Kidneys
C) Pancreas
D) Small intestine
Answer: C) Pancreas
Rationale: The pancreas contains specialized cells known as the
islets of Langerhans, which produce insulin, a hormone that
helps regulate blood glucose levels.
2. What is the main function of the red blood cells?
A) To fight infection
B) To transport oxygen
C) To clot blood
D) To produce antibodies
Answer: B) To transport oxygen
Rationale: Red blood cells (RBCs) contain hemoglobin, a
protein that binds oxygen in the lungs and releases it to tissues
throughout the body.
3. Which part of the brain is primarily responsible for
regulating heart rate and breathing?
A) Cerebellum
, B) Medulla oblongata
C) Thalamus
D) Hypothalamus
Answer: B) Medulla oblongata
Rationale: The medulla oblongata is located in the brainstem
and controls vital functions such as heart rate, breathing, and
blood pressure.
4. Which of the following is NOT a function of the skeletal
system?
A) Protection of vital organs
B) Storage of minerals
C) Blood cell production
D) Regulation of body temperature
Answer: D) Regulation of body temperature
Rationale: The skeletal system provides structural support,
protects organs, stores minerals (like calcium), and produces
blood cells in the bone marrow. It does not directly regulate
body temperature.
5. What type of muscle is responsible for voluntary
movements?
A) Cardiac muscle
B) Skeletal muscle
, C) Smooth muscle
D) None of the above
Answer: B) Skeletal muscle
Rationale: Skeletal muscle is under voluntary control and is
responsible for the movement of bones and body parts.
6. Which of the following is a function of the large intestine?
A) Absorption of nutrients
B) Absorption of water and electrolytes
C) Digestion of proteins
D) Secretion of bile
Answer: B) Absorption of water and electrolytes
Rationale: The primary function of the large intestine is to
absorb water and electrolytes from the indigestible food matter,
forming solid waste for elimination.
7. Which of the following is the correct sequence of blood
flow through the heart?
A) Right atrium → Right ventricle → Left atrium → Left
ventricle
B) Right atrium → Left atrium → Right ventricle → Left
ventricle
C) Left atrium → Left ventricle → Right atrium → Right
ventricle
