3.2 ATP-ADP Cycle

Front

What is the ATP molecule made up of?

Back

The ATP molecule is made up of adenine (A), ribose (B), and three phosphate groups (C and D).

Front

Where does the body primarily get energy to reattach a phosphate to ADP to form ATP?

Back

The body usually gets energy from carbohydrates.

Front

Which phosphate bond in ATP contains the most energy?

Back

The bond between the second and third phosphate group contains the most energy.

Front

What type of reaction occurs when cells join ADP and a phosphate using energy from food?

Back

This is an Endothermic Reaction.

Front

What are organisms that make their own food called?

Back

Autotrophs.

Front

What is the role of ATP in cellular processes?

Back

ATP serves as the primary energy carrier in cells, providing energy for various biochemical reactions.

Front

What happens to ATP when it releases energy?

Back

When ATP releases energy, it is converted to ADP (adenosine diphosphate) and a free phosphate group.

Front

What is the process of converting ADP back to ATP called?

Back

The process is called phosphorylation.

Front

What is the significance of the phosphate groups in ATP?

Back

The phosphate groups store potential energy in their bonds, which can be released for cellular work.

Front

How do autotrophs contribute to the ATP-ADP cycle?

Back

Autotrophs convert sunlight or inorganic substances into energy, which is used to produce ATP.