Question

The structures involved in storage excretion are
A. Malphighian tubules
B. Corpora adipose
C. Corpora cardiac
D. Uricose glands

Answer 1

Hint: It is said that the pre-urine is produced as nitrogenous waste and electrolytes are carried through the walls of the tubules in this organ. The pre-urine merges, along with digested food in the hindgut. Water subsequently follows. Wastes such as urea and amino acids are thought to diffuse through the walls, while active pump mechanisms transport ions such as sodium and potassium.

Complete answer: A type of excretory and osmoregulatory system found in certain insects, myriapods, arachnids, and tardigrades is the Malpighian tubule system. The unit consists of branching tubules that absorb solutes, water, and waste from the surrounding hemolymph from the food canal.
Each tubule consists of a single cell layer that is closed off at the distal end, at the junction between the midgut and the hindgut, with the proximal end joining the food canal.
In all amphibians, corpora adiposa or fat bodies are present, and possibly nurture the sexual cells during the hibernating period.
A corpus cardiacum is an organ in which, for release later into the vascular system, neurosecretory products are retained in the nerve terminals.
Uricose glands are considered to be connected with the male reproductive organs mushroom-shaped gland. They can also store uric acid and discharge it through the spermatophore at the time of copulation.
So, the correct answer is “Option A”.

Note:
In most insects, malpighian tubules often contain tubule-associated accessory musculature that can act to mix the contents of the tubules or expose the tubules to more hemolymph. Though most occur in multiples of two, the number of tubules varies between species. Typically, tubules are bathed in hemolymph and are similar to fat body tissue. For structural support, they include actin and microvilli for the propulsion of substances along the tubules.