AP Biology - 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 purpose of glycolysis?

Back

The main purpose of glycolysis is to break down glucose into pyruvate, producing a small amount of ATP and NADH.

Front

What is the role of oxygen in aerobic respiration?

Back

Oxygen acts as the final electron acceptor in the electron transport chain, allowing for the continuation of electron flow and ATP production.

Front

What are the end products of the Citric Acid Cycle?

Back

The end products of the Citric Acid Cycle are ATP, NADH, FADH2, and carbon dioxide.

Front

What is oxidative phosphorylation?

Back

Oxidative phosphorylation is the process of ATP production that occurs in the mitochondria, utilizing the electron transport chain and chemiosmosis.

Front

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

Back

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

Front

What is the difference between aerobic and anaerobic respiration?

Back

Aerobic respiration requires oxygen and produces more ATP, while anaerobic respiration occurs without oxygen and produces less ATP.

Front

What is lactic acid fermentation?

Back

Lactic acid fermentation is an anaerobic process that converts glucose into lactic acid and ATP, occurring in muscle cells during intense exercise.