Question

The energy currency used by cells is _____. a. ATP b. ADP c. AMP d. adenosine

Short answer

The energy currency used by cells is ATP.

Step-by-step solution

Understanding Energy Carriers in Cells

Cells require energy to perform their functions, and this energy is stored and transported within the cell by specific molecules. The options given in the question are all related to this process.

Reviewing Option A: ATP

ATP, or adenosine triphosphate, is the primary energy carrier in all living organisms. It transports chemical energy within cells for metabolism.

Reviewing Option B: ADP

ADP, or adenosine diphosphate, is involved in energy transfer but it is less energy-rich than ATP. It can be converted to ATP by the addition of a phosphate group.

Reviewing Option C: AMP

AMP, or adenosine monophosphate, also plays a role in energy transfer and can be converted to ADP or ATP, but it is not the primary energy carrier.

Reviewing Option D: Adenosine

Adenosine is part of the ATP, ADP, and AMP molecules, but on its own, it does not carry energy.