AP Bio 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 main stages of cellular respiration?

Back

The main stages of cellular respiration are glycolysis, the oxidation of pyruvate, the Krebs cycle, and oxidative phosphorylation.

Front

Where does glycolysis occur?

Back

Glycolysis occurs in the cytoplasm of the cell.

Front

What is the role of NAD+ in cellular respiration?

Back

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

Front

What is the Krebs cycle also known as?

Back

The Krebs cycle is also known as the citric acid cycle or the tricarboxylic acid (TCA) cycle.

Front

What is the main purpose of the Krebs cycle?

Back

The main purpose of the Krebs cycle is to produce electron carriers (NADH and FADH2) and ATP, while releasing carbon dioxide.

Front

Where does the electron transport chain occur?

Back

The electron transport chain occurs in the mitochondrial inner membrane.

Front

What is chemiosmosis?

Back

Chemiosmosis is the process by which ATP is produced using the energy from the movement of protons (H+) across a membrane.

Front

What is the role of oxygen in cellular respiration?

Back

Oxygen acts as the final electron acceptor in the electron transport chain, forming water.

Front

What is substrate-level phosphorylation?

Back

Substrate-level phosphorylation is the direct transfer of a phosphate group to ADP to form ATP during glycolysis and the Krebs cycle.