Question

why do carbohydrates function so well as chemical energy sources for living organisms?
a) they are highly stable and resist breakdown.
b) they can be stored in large quantities without energy loss.
c) they are easily broken down into compounds that result in the formation of usable energy.
d) they require a complex series of reactions to release energy.

Explanation:

Carbohydrates are broken down through processes like glycolysis. This breakdown releases energy in a form (ATP) that cells can use. Option A is incorrect as they are not highly stable and resistant to breakdown (they are broken down for energy). Option B is wrong because storage (like glycogen) still has some energy - related processes. Option D is incorrect as the breakdown is not overly complex for energy release compared to some other substances.

Answer:

C. They are easily broken down into compounds that result in the formation of usable energy.