Question

Which best describes adenosine triphosphate (ATP)?

O A waste-product molecule that is produced by cells but cannot be used by them.
O A high-energy molecule that is used by every cell in the body as an energy carrier,
O A process that is used to create energy when oxygen is available to the body
O A process that is used to create energy when oxygen is not available to the body.

Answer 1

What best describes adenosine triphosphate (ATP) is a high-energy molecule that is used by every cell in the body as an energy carrier.

Step-by-step explanation:

Adenosine triphosphate, or ATP, is an energy carrier molecule, built through processes such as oxidative phosphorylation, which generates this molecule from glucose.

As its name indicates, ATP has three phosphate groups, whose bonds are considered to be high energy. When one of the phosphates is separated from ATP by hydrolysis, a large amount of energy is released, which is used to meet the demands of the body's organic functions.

Other options are not correct because:

• ATP is not a waste product, but a useful molecule for the body.
• A process that is used to create energy when oxygen is available to the body. This would be aerobic cellular breathing, from which ATP is obtained.
• A process that is used to create energy when oxygen is not available to the body. Anaerobic cell respiration.

Answer 2

B. A high-energy molecule that is used by every cell in the body as an energy carrier

Step-by-step explanation:

Adenosine triphosphate (ATP) is a molecule that carries energy in cells of all living things. The energy that originates from food molecules is captured by ATP and released as fuel to facilitate other cellular processes.

The first answer choice is incorrect because the waste-product that is produced by cells but cannot be used by them include water and carbon dioxide.

The third answer choice is incorrect because the process that is used to create energy when oxygen is available to the body is called cellular respiration.

The fourth answer choice is incorrect because the process that is used to create energy when oxygen is not available to the body is called Gycolysis.