Some desert beetles can live out their life without ever drinking liquid water. They survive on "metabolic water," which
A) was produced as water in the organisms they eat and is retained, never to pass out of the cell membrane.
B) is absorbed from the air along with respiratory oxygen.
C) is formed as a result of the reduction of oxygen as the final electron acceptor from the electron transport chain.
D) is a breakdown product from glycolysis in the cytoplasm.
E) is an original storehouse of water that is never allowed to pass out the cell membrane.

Question

Quizplus · Accepted Answer

Metabolic water is produced internally in organisms as a byproduct of the metabolic process, specifically through the oxidation of energy-containing substances in cells. This occurs in the electron transport chain, where oxygen is reduced to water as the final electron acceptor. This process allows some desert beetles and other organisms to survive without direct water intake by generating water internally from the food they metabolize.

Some Desert Beetles Can Live Out Their Life Without Ever