Human cells obtain energy by
A)oxidizing carbohydrates.
B)reducing proteins.
C)reducing carbon dioxide.
D)absorbing sunlight.

Question

Quizplus · Accepted Answer

Human cells obtain energy by oxidizing carbohydrates through the process of cellular respiration. This process converts glucose, a carbohydrate, into ATP, which is a form of energy that cells can use. Reduction of proteins and carbon dioxide are not used as sources of energy by human cells. Absorbing sunlight is used by autotrophic organisms (such as plants) to produce carbohydrates through photosynthesis, but it is not a process used by human cells.

Human Cells Obtain Energy by