Unit 3: Enzymes, ATP, and Energy Flow

Front

What is ATP?

Back

ATP (Adenosine Triphosphate) is a molecule that carries energy within cells, used for various cellular processes.

Front

How is energy released from ATP?

Back

Energy is released from ATP when a phosphate group is removed.

Front

What is the role of enzymes in biochemical reactions?

Back

Enzymes speed up biochemical reactions by lowering the activation energy required for the reaction to occur.

Front

What happens to an enzyme when it is denatured?

Back

When an enzyme is denatured, it loses its specific shape and, consequently, its ability to function.

Front

What is the ATP/ADP cycle?

Back

The ATP/ADP cycle is the process of converting ATP to ADP by removing a phosphate group, and then regenerating ATP by adding a phosphate group.

Front

What is activation energy?

Back

Activation energy is the minimum energy required to initiate a chemical reaction.

Front

What factors can affect enzyme activity?

Back

Factors include temperature, pH, substrate concentration, and the presence of inhibitors or activators.

Front

What is a substrate in the context of enzymes?

Back

A substrate is the reactant molecule upon which an enzyme acts.

Front

What is the significance of the active site of an enzyme?

Back

The active site is the region of the enzyme where substrate molecules bind and undergo a chemical reaction.

Front

What is denaturation in enzymes?

Back

Denaturation is the process where an enzyme loses its functional shape due to external stress, such as extreme temperature or pH.