Question

Nitrogenous waste in Malpighian tubule of Cockroach passes into

• A. Haemocoel
• B. Intestine
• C. Vacuole
• D. Duodenum

Answer 1

The correct option is B Intestine

A ring of 100-150 yellow coloured thin filamentous Malpighian tubules is present at the junction of the midgut and hindgut. These Malpighian tubules help in the removal of excretory products. Hence Malpighian tubules contain waste which passes into the intestine, which absorbs the nitrogenous waste products. These are converted into uric acid and excreted out through the hindgut.

So the correct answer is 'Intestine'.