Question

(a) What job is done by the kidneys?
(b) What do kidneys excrete?
(c) What is the name of the tubes which connect the kidneys to bladder?
(d) What does the bladder in our body do?

Answer 1

(a) Kidneys filter the wastes out of the blood and form the urine. They also maintain the water balance of the body.

(b) Kidneys remove the poisonous substance (urea), other waste salts and excess water from the blood, and excrete them in the form of urine.

(c) Ureters are the tubes that connect the kidneys to the bladder.

(d) The urinary bladder stores the urine until it is forced out of the body through an opening known as urethra.