Human Physiology Practice Questions
HSC/SSC (Bangladesh) · HSC Biology · 133 free MCQs with instant results and detailed explanations.
133
Total
41
Easy
61
Medium
31
Hard
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Sample Questions from Human Physiology
Here are 10 sample questions. Start a quiz to get randomized questions with scoring.
Q1
Easy
What is the primary function of the kidneys in the human body?
A.
Digest food
B.
Filter blood
C.
Produce hormones
D.
Store energy
Show Answer & Explanation
Correct Answer: B
The primary function of the kidneys is to filter blood, removing waste products and excess substances, thus maintaining fluid and electrolyte balance.
Q2
Easy
What role does insulin play in human physiology?
A.
Regulates blood pressure
B.
Facilitates glucose uptake
C.
Promotes bone growth
D.
Stimulates digestion
Show Answer & Explanation
Correct Answer: B
Insulin is a hormone produced by the pancreas that facilitates the uptake of glucose by cells, thus lowering blood sugar levels and helping in energy regulation.
Q3
Easy
What is the primary function of red blood cells in the human body?
A.
To transport oxygen
B.
To fight infections
C.
To aid in digestion
D.
To regulate body temperature
Show Answer & Explanation
Correct Answer: A
Red blood cells are specialized cells responsible for transporting oxygen from the lungs to the tissues and carbon dioxide from the tissues back to the lungs. They contain hemoglobin, which binds to oxygen, making option A correct.
Q4
Medium
Which of the following is the primary function of the alveoli in the lungs?
A.
Transport oxygen to the blood
B.
Exchange of gases
C.
Produce mucus
D.
Regulate body temperature
Show Answer & Explanation
Correct Answer: B
The primary function of the alveoli is the exchange of gases (oxygen and carbon dioxide) between the air and blood, facilitating respiration.
Q5
Medium
What is the role of the liver in human metabolism?
A.
Producing insulin
B.
Detoxifying chemicals
C.
Facilitating digestion of fats
D.
Absorbing nutrients directly from the intestines
Show Answer & Explanation
Correct Answer: B
The liver plays a critical role in detoxifying chemicals and metabolizing drugs, making it essential for maintaining metabolic homeostasis.
Q6
Medium
In which part of the nephron does most of the reabsorption of water take place?
A.
Glomerulus
B.
Proximal convoluted tubule
C.
Loop of Henle
D.
Distal convoluted tubule
Show Answer & Explanation
Correct Answer: B
Most water reabsorption occurs in the proximal convoluted tubule, where approximately 65% to 70% of water is reabsorbed back into the bloodstream.
Q7
Medium
Which part of the human brain is primarily responsible for balance and coordination?
A.
Cerebrum
B.
Cerebellum
C.
Brainstem
D.
Thalamus
Show Answer & Explanation
Correct Answer: B
The cerebellum is responsible for balance and coordination, playing a key role in fine motor control and maintaining posture.
Q8
Hard
What is the primary function of the nephrons in the human kidney?
A.
To filter blood and produce urine
B.
To regulate body temperature
C.
To store minerals and vitamins
D.
To produce hormones for metabolism
Show Answer & Explanation
Correct Answer: A
The primary function of nephrons is to filter blood, removing waste and excess substances, thereby producing urine. This process is essential for maintaining homeostasis in the body.
Q9
Hard
Which of the following statements correctly describes the role of the hypothalamus in the human body?
A.
It regulates blood sugar levels through insulin production.
B.
It coordinates the autonomic nervous system and endocrine functions.
C.
It is responsible for the production of red blood cells.
D.
It stores bile produced by the liver.
Show Answer & Explanation
Correct Answer: B
The hypothalamus plays a crucial role in coordinating the autonomic nervous system and regulating the endocrine system by releasing hormones that control various bodily functions, including temperature regulation, hunger, and thirst.
Q10
Hard
Which of the following enzymes is responsible for initiating the digestion of proteins in the stomach?
A.
Pepsin
B.
Amylase
C.
Lipase
D.
Trypsin
Show Answer & Explanation
Correct Answer: A
Pepsin is the enzyme that begins protein digestion in the stomach, breaking down proteins into smaller peptides. Amylase digests carbohydrates, Lipase digests fats, and Trypsin is active in the small intestine, not the stomach.
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Human Physiology — HSC/SSC (Bangladesh) HSC Biology Practice Questions Online
This page contains 133 practice MCQs for the chapter Human Physiology in HSC/SSC (Bangladesh) HSC Biology. The questions are organized by difficulty — 41 easy, 61 medium, 31 hard — so you can choose the right level for your preparation.
Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit.