Human Health and Disease

Q. What is the main purpose of the immune system?

Solution

The immune system's primary purpose is to protect the body against pathogens such as bacteria and viruses.

Correct Answer: B — To protect against pathogens

Q. What is the primary function of red blood cells in the human body?

Solution

Red blood cells are primarily responsible for transporting oxygen from the lungs to the body's tissues.

Correct Answer: A — Transport oxygen

Q. What is the primary function of the skeletal system?

Solution

The skeletal system provides support and protection for the body's organs and structures.

Correct Answer: B — Support and protect the body

Q. What is the role of the pancreas in the human body?

Solution

The pancreas produces insulin, which regulates blood sugar levels, and digestive enzymes that aid in digestion.

Correct Answer: B — Produces insulin and digestive enzymes

Q. Which hormone is primarily responsible for regulating metabolism?

Solution

Thyroxine, produced by the thyroid gland, plays a key role in regulating metabolism.

Correct Answer: B — Thyroxine

Q. Which organ is primarily responsible for detoxifying chemicals and metabolizing drugs?

Solution

The liver plays a crucial role in detoxifying chemicals and metabolizing drugs.

Correct Answer: B — Liver

Q. Which part of the brain is responsible for regulating heart rate and breathing?

Solution

The medulla oblongata regulates vital functions such as heart rate and breathing.

Correct Answer: C — Medulla oblongata

Q. Which type of blood vessel carries oxygenated blood away from the heart?

Solution

Arteries carry oxygenated blood away from the heart to the rest of the body.

Correct Answer: C — Arteries

Q. Which type of immunity is acquired through vaccination?

Solution

Active immunity is acquired through vaccination, where the body produces its own antibodies.

Correct Answer: C — Active immunity

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