Insects Maintain Water and Electrolyte Balance Through Which Anatomical Structures

Question

Insects maintain water and electrolyte balance through which anatomical structures?
A) chloride cells
B) rectal gland
C) Malpighian tubules
D) kidneys

Accepted Answer

Insects maintain water and electrolyte balance through their Malpighian tubules. These tubules actively secrete ions such as potassium and actively transport water out of the insect's body, resulting in the formation of urine. This allows the insect to regulate its internal fluid balance and prevent dehydration. Chloride cells and rectal glands are found in aquatic animals and serve similar functions, while insects do not have kidneys.