Which of the following statements is true regarding the urinary tubule in the excretory system?

Biology

JAMB 2023

A. The urinary tubule is responsible for the production of urine
B. The urinary tubule regulates the water and electrolyte balance in the body
C. The urinary tubule connects the kidneys to the bladder
D. The urinary tubule is the site of filtration of blood

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Correct Answer: Option A

Explanation

The urinary tubule, a part of the nephron in the kidney, is indeed responsible for the production of urine. It does this by reabsorbing useful substances from the filtrate, such as glucose and ions, and secreting waste products into it. The modified filtrate, now called urine, is then passed on to the bladder for storage and eventual excretion.

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