Unit 3 AP Biology Insta-Review (Cellular Energetics)

Front

How does an enzyme affect activation energy?

Back

Enzymes decrease the activation energy required for a reaction to occur, allowing the reaction to proceed more quickly.

Front

Which step of photosynthesis takes place in the thylakoid?

Back

The Light Reactions occur in the thylakoid membranes of chloroplasts.

Front

If the pH increases, why does the enzyme denature?

Back

An increase in pH affects the charge on the carboxyl and amine groups of the enzyme, leading to denaturation.

Front

Do enzymes get consumed by reactions?

Back

False. Enzymes are not consumed in reactions and can be used repeatedly.

Front

What does the Second Law of Thermodynamics state?

Back

Every reaction increases the entropy of the universe.

Front

What is activation energy?

Back

Activation energy is the minimum energy required for a chemical reaction to occur.

Front

What are the products of the Light Reactions in photosynthesis?

Back

The Light Reactions produce ATP and NADPH, which are used in the Calvin Cycle.

Front

What is the role of enzymes in biochemical reactions?

Back

Enzymes act as catalysts to speed up biochemical reactions without being consumed.

Front

What happens to enzymes at extreme pH levels?

Back

Extreme pH levels can lead to denaturation of enzymes, altering their structure and function.

Front

What is glycolysis?

Back

Glycolysis is the process of breaking down glucose into pyruvate, producing ATP and NADH.