Cellular Respiration

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy (ATP), carbon dioxide, and water.

Front

What are the three main stages of cellular respiration?

Back

The three main stages are Glycolysis, the Citric Acid Cycle (Krebs Cycle), and Oxidative Phosphorylation.

Front

Where does glycolysis occur in the cell?

Back

Glycolysis occurs in the cytoplasm of the cell.

Front

What is the main product of glycolysis?

Back

The main products of glycolysis are 2 molecules of pyruvate, 2 molecules of ATP, and 2 molecules of NADH.

Front

What is the role of NAD+ in cellular respiration?

Back

NAD+ acts as an electron carrier, accepting electrons during glycolysis and the citric acid cycle to form NADH.

Front

What happens to pyruvate after glycolysis?

Back

Pyruvate is transported into the mitochondria where it is converted into acetyl-CoA before entering the citric acid cycle.

Front

What is produced during the citric acid cycle?

Back

The citric acid cycle produces ATP, NADH, FADH2, and carbon dioxide.

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

How many ATP molecules are produced from one glucose molecule during cellular respiration?

Back

Up to 38 ATP molecules can be produced from one glucose molecule during cellular respiration.

Front

What is the significance of oxygen in cellular respiration?

Back

Oxygen is the final electron acceptor in the electron transport chain, allowing for the production of water and enabling ATP synthesis.