AP Biology - Cellular Respiration

Front

What is cellular respiration?

Back

Cellular respiration is a metabolic process that converts glucose and oxygen into energy (ATP), carbon dioxide, and water.

Front

What are the main stages of cellular respiration?

Back

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

Front

Where does glycolysis occur?

Back

Glycolysis occurs in the cytoplasm of the cell.

Front

What is the primary purpose of glycolysis?

Back

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

Front

What is the Citric Acid Cycle?

Back

The Citric Acid Cycle, also known as the Krebs Cycle, is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetyl-CoA.

Front

What are the products of the Citric Acid Cycle?

Back

The products include ATP, NADH, FADH2, and CO2.

Front

What role do electron carriers play in cellular respiration?

Back

Electron carriers, such as NADH and FADH2, transport electrons and hydrogen ions to the electron transport chain.

Front

What is oxidative phosphorylation?

Back

Oxidative phosphorylation is the final stage of cellular respiration where ATP is produced using energy derived from the electron transport chain.

Front

Where does oxidative phosphorylation occur?

Back

Oxidative phosphorylation occurs in the inner mitochondrial membrane.

Front

What is chemiosmosis?

Back

Chemiosmosis is the movement of ions across a selectively permeable membrane, down their electrochemical gradient, which is used to generate ATP.