Question

6. People use water pumps in their houses to circulate water in the house pipes. If our
blood vessels are compared to water pipes and blood to water, then what organ of the
human body acts as a water pump and circulates blood throughout the body?
(a) Heart (b) Kidney (c) Lungs
(d) Liver​

Answer 1

Answer:

a.heart circulates blood throughout the body.

Answer 2

Answer:

The answer is (a) Heart

Explanation:

The heart's primary duty is to circulate blood throughout the body.

• It regulates the heart rate's rhythm and pace.

• It plays a vital role in maintaining blood pressure.

• It also provides oxygen and nutrition to tissues while also removing carbon dioxide and other wastes from the blood.

The kidney's primary role is to remove poisons from the blood and convert waste into urine.

• It excretes metabolic waste into the urine, such as urea and uric acid.
• It secretes renin, erythropoietin, and calcitriol, among other hormones and enzymes.

• It also keeps the body's acid balance and water-salt levels.

The lungs' principal purpose is to promote gas exchange between the blood and the air.

The liver is responsible for creating bile, which aids in fat, vitamin, and cholesterol digestion.

• The other functions are, excretion of bilirubin helps in enzyme activation, acts as a storage for glycogen, vitamins, and minerals.