Question

Uric acid is the chief nitrogenous component of the excretory products of?

• A. Man
• B. Frog
• C. Cockroach
• D. Earthworm

Answer 1

The correct option is C

Cockroach

The correct option is C.

Explanation of correct option:

1. The nitrogenous waste of cockroach body cells is mostly discharged in the form of potassium urate in the hemolymph (soluble).
2. Carbon dioxide and water react with potassium urate.
3. As a result, potassium hydrogen carbonate and uric acid are the end products of the process.

Explanation of incorrect options:

Option A:

1. When proteins are oxidized, two primary nitrogenous waste products, urea, and ammonium ion, are formed in humans, and their excretions are investigated from two perspectives in this work.

Option B:

1. The frog is a ureotelic animal because it excretes urea.
2. Blood transports excretory waste to the kidney, where it is sorted and expelled.

Option D:

1. The main nitrogenous excretory substance of earthworms is urea.

Final answer: Uric acid is the chief nitrogenous component of the excretory products of cockroaches.