Question

multiple choice question

what describes the energy flow in cellular metabolism?

cells store available energy into nutrients through cellular metabolism.
cells convert the energy in nutrients into available energy through metabolism.
cells create energy through metabolism.

Explanation:

Analyze the first option

The first option states that cells store available energy into nutrients. In cellular metabolism, nutrients are broken down to release energy rather than storing free available energy back into nutrients.

Analyze the second option

The second option states that cells convert the energy in nutrients into available energy. This accurately describes catabolic pathways of cellular metabolism, where chemical energy stored in organic molecules (nutrients) is harvested and converted into biologically usable energy (such as ATP).

Analyze the third option

The third option states that cells create energy. This violates the first law of thermodynamics, which states that energy cannot be created or destroyed, only transformed from one form to another.

Answer:

• Cells store available energy into nutrients through cellular metabolism.
• Cells convert the energy in nutrients into available energy through metabolism. (Correct answer)
• Cells create energy through metabolism.