Unit 3 Cellular Energetics Review

Front

What is the role of enzymes in cellular reactions?

Back

Enzymes facilitate cellular reactions by stabilizing transition states, lowering the activation energy required for reactions to occur, and thus expediting crucial metabolic processes.

Front

What is decarboxylation in the context of cellular respiration?

Back

Decarboxylation is the process of removing a carboxyl group from pyruvate to form Acetyl CoA during the link reaction.

Front

What is the primary goal of cellular respiration?

Back

The overall goal of cellular respiration is to produce ATP.

Front

List the stages of cellular respiration in order.

Back

The stages of cellular respiration in order are glycolysis, the citric acid cycle, and oxidative phosphorylation.

Front

Which factor is NOT a limiting factor for photosynthesis?

Back

Concentration of O2 is NOT a limiting factor for photosynthesis.

Front

Define activation energy.

Back

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

Front

What is glycolysis?

Back

Glycolysis is the first stage of cellular respiration where glucose is broken down into pyruvate, producing a small amount of ATP.

Front

What occurs during the citric acid cycle?

Back

The citric acid cycle processes Acetyl CoA to produce NADH, FADH2, and ATP, while releasing CO2.

Front

What is oxidative phosphorylation?

Back

Oxidative phosphorylation is the final stage of cellular respiration where ATP is produced using the electron transport chain and chemiosmosis.

Front

Explain the importance of ATP in cellular processes.

Back

ATP serves as the primary energy currency of the cell, providing energy for various biochemical reactions.