Which statement best describes ATP?

a
It is the product of photosynthesis.
b
It is the primary source of energy for cellular processes.
c
It is transported out of cells as a waste product.
d
It is created when cells undergo replication.

b

It is the primary source of energy for cellular processes.

The correct answer is b: "It is the primary source of energy for cellular processes."

b

It is the primary source of energy for cellular processes.

To determine the correct answer, let's break down the options:

a) It is the product of photosynthesis.
ATP is not the direct product of photosynthesis. Photosynthesis produces glucose, which can be used to make ATP through cellular respiration.

b) It is the primary source of energy for cellular processes.
This statement is correct. ATP (Adenosine Triphosphate) is often referred to as the "energy currency" of cells because it provides the energy needed for various cellular processes.

c) It is transported out of cells as a waste product.
ATP is not transported out of cells as a waste product. It is used within the cell to provide energy for different biochemical reactions.

d) It is created when cells undergo replication.
ATP is not directly created during cell replication. ATP is produced through cellular respiration, which occurs in the mitochondria of the cell.

Based on this analysis, option b is the best description of ATP.