Unit 4 Target 1: ATP Quiz

The three parts of an ATP molecule are adenine, ribose, and phosphate groups. Adenine is a nitrogenous base, ribose is a five-carbon sugar, and phosphate groups are responsible for storing and releasing energy. Together, these three components make up adenosine triphosphate (ATP), which is the primary energy currency of cells.

Chlorophyll is not a part of an ATP molecule. ATP (adenosine triphosphate) is composed of three main components: adenine (a nitrogenous base), ribose (a sugar), and phosphate groups. Chlorophyll, on the other hand, is a pigment found in plants and algae that is responsible for capturing light energy during photosynthesis. It is not involved in the structure or function of ATP.

When the bond between the phosphate groups in ATP is broken, energy is released. This is because ATP (adenosine triphosphate) is a molecule that stores energy in its phosphate bonds. When one of these phosphate bonds is broken, a phosphate group is released, and a molecule of ADP (adenosine diphosphate) is formed. This process releases energy that can be used by cells for various metabolic reactions.

When a phosphate group is removed from ATP, energy is released. ATP (adenosine triphosphate) is a molecule that stores and transports energy in cells. It consists of three phosphate groups bonded to adenosine. When a phosphate group is removed, ATP is converted into ADP (adenosine diphosphate), releasing energy that can be used for various cellular processes. This process is known as ATP hydrolysis and is essential for powering cellular activities.

The question is asking which structure is not a part of an ADP molecule. ADP (adenosine diphosphate) is a molecule composed of adenine, ribose, and two phosphate groups. By looking at the figure, we can see that structures A, B, and C are all present in an ADP molecule. However, structure D is not shown in the figure, indicating that it is not a part of an ADP molecule.

In order to form an ADP molecule, the bonds between parts C and D of the molecule must be broken. This is because ADP (adenosine diphosphate) is formed by the removal of a phosphate group from ATP (adenosine triphosphate), which is represented by the molecule in the figure. The phosphate group that is removed is located between parts C and D.

The phosphate-phosphate bond in an ATP molecule enables it to store energy for use by cells. When this bond is broken, energy is released, which can be used for various cellular processes. This bond is high in energy due to the repulsion between the negatively charged phosphate groups. The breaking of this bond results in the formation of ADP and inorganic phosphate, releasing energy that can be used by the cell.

ATP is not discarded by the cell as waste. Instead, when ATP releases energy and becomes ADP, it can be recycled back into ATP through the process of cellular respiration. This recycling process allows the cell to reuse the ADP and conserve energy.

The correct answer is A, B, C, and D. This means that all of the structures shown in the figure make up an ATP molecule.