Question

in an inforaml discussion on your class your friend made a comment that malpighian tubules are the kidneys of cockroach how will you. evaluate this statement​

Answer 1

malpighian tubules are kidneys of cockroach as they play a major role in excretion in cockroach.

Answer 2

Answer:

The Malpighian tubules are the kidneys of cockroach and why we say so will be discussed in the explanation part.

Explanation:

If we have to understand, why the Malpighian tubules are the kidneys of cockroaches, then we have to know about kidney and Malpighian tubules.

• The excretory system of a human consists of two kidneys, two ureters, one urinary bladder, and one urethra. The metanephric kidney (kidney is a urine-forming organ) is found in humans.
• The main excretory and osmoregulatory organs of cockroaches are Malpighian tubules. These are fine, yellow-colored, unbranched, thread-like structures present at the junction of midgut and hindgut (ileum) and hang freely in the hemocoel. These are about 100-150 in number and present in 6-9 groups. Each Malpighian tubule is lined by a single-layered ciliated cuboidal glandular epithelium having microvilli. These absorb the nitrogenous wastes from the hemolymph and transform them into uric acid, which is expelled out through the gut.

So we can say that the Malpighian tubules are the kidneys of the cockroach. Like the kidneys, Malpighian tubules are the main excretory and osmoregulatory organs of cockroaches.