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Home › Science › Human Body - Organs and Functions

Human Body - Organs and Functions — Science Questions & Practice

Practise 28 Human Body - Organs and Functions questions from Science for competitive exams such as UPSC, Banking, SSC and Railway. Read the worked questions below, check every answer with an explanation, and track what you get wrong.

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Practice questions on Human Body - Organs and Functions — with answers

Try each question first, then open the answer. Explanations are included.

1. What is the primary function of the 'Heart' in the human body?

  1. APumps blood throughout the body via the circulatory system
  2. BFilter blood and produce urine, removing waste products (excretion)
  3. CAbsorbs digested nutrients into the bloodstream
  4. DKnown as the 'master gland', regulates other endocrine glands
Show answer

Answer: A

The Heart: Pumps blood throughout the body via the circulatory system.

2. What is the primary function of the 'Lungs' in the human body?

  1. ASecretes gastric juices to digest food, primarily proteins
  2. BControls thought, memory, and coordinates body functions (nervous system)
  3. CFacilitate exchange of oxygen and carbon dioxide (respiration)
  4. DPumps blood throughout the body via the circulatory system
Show answer

Answer: C

The Lungs: Facilitate exchange of oxygen and carbon dioxide (respiration).

3. What is the primary function of the 'Pancreas' in the human body?

  1. ALargest organ of the body; provides protection and regulates temperature
  2. BLargest internal organ; performs detoxification, bile production, and metabolism
  3. CSecretes insulin (regulating blood sugar) and digestive enzymes
  4. DCarries air from the throat to the lungs
Show answer

Answer: C

The Pancreas: Secretes insulin (regulating blood sugar) and digestive enzymes.

4. What is the primary function of the 'Small Intestine' in the human body?

  1. ALargest internal organ; performs detoxification, bile production, and metabolism
  2. BPumps blood throughout the body via the circulatory system
  3. CAbsorbs digested nutrients into the bloodstream
  4. DControls thought, memory, and coordinates body functions (nervous system)
Show answer

Answer: C

The Small Intestine: Absorbs digested nutrients into the bloodstream.

5. What is the primary function of the 'Large Intestine' in the human body?

  1. AFilters blood and supports the immune system
  2. BAbsorbs water and forms faeces from undigested food
  3. CStores and concentrates bile produced by the liver
  4. DControls thought, memory, and coordinates body functions (nervous system)
Show answer

Answer: B

The Large Intestine: Absorbs water and forms faeces from undigested food.

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