Which of the following best describes ATP? A. It is a molecule that only photosynthesis produces.
B. It is the primary molecule in which cells store and use energy.
c. It is a molecule that only herbivores produce.
D. It is the primary molecule in which cells carry out enzyme reactions.

B. It is the primary molecule in which cells store and use energy.

Explanation:

ATP (adenosine triphosphate) is an energy-carrying molecule found in the cells of all living organisms. It provides the energy necessary for many functions, such as muscle contraction, nerve impulse propagation, chemical processes, etc. It consists of three main structures:

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.