Which statement is NOT true of the use of food molecules in cell respiration?
A)Glycerol is changed to pyruvic acid and enters the Krebs cycle.
B)Fatty acids are changed to acetyl groups to enter the Krebs cycle.
C)Amino acids and fatty acids may be changed to ketones.
D)Glucose may be changed to ketones.

Question

Quizplus · Accepted Answer

Glucose is not changed to ketones in cell respiration. It is converted to pyruvic acid in glycolysis and then enters the Krebs cycle as acetyl-CoA. Ketones are produced in a different metabolic process called ketogenesis, which occurs when the body is low on glucose and breaks down fat for energy.

Which Statement Is NOT True of the Use of Food