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 main stages of cellular respiration?

Back

The main stages of cellular respiration are Glycolysis, the Krebs Cycle (Citric Acid Cycle), and the Electron Transport Chain.

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 role of oxygen in aerobic respiration?

Back

Oxygen acts as the final electron acceptor in the Electron Transport Chain, allowing for the production of a large amount of ATP.

Front

What is anaerobic respiration?

Back

Anaerobic respiration is a type of respiration that occurs without oxygen, resulting in the production of less ATP and byproducts like lactic acid or ethanol.

Front

What is fermentation?

Back

Fermentation is a metabolic process that allows glycolysis to continue in the absence of oxygen by regenerating NAD+.

Front

What is the total ATP yield from one molecule of glucose during aerobic respiration?

Back

The total ATP yield from one molecule of glucose during aerobic respiration is approximately 38 ATP.

Front

What is the total ATP yield from one molecule of glucose during anaerobic respiration?

Back

The total ATP yield from one molecule of glucose during anaerobic respiration is approximately 2 ATP.

Front

What are electron carriers?

Back

Electron carriers are molecules that transport electrons and hydrogen ions to the Electron Transport Chain during cellular respiration.

Front

What is the function of the Electron Transport Chain?

Back

The function of the Electron Transport Chain is to transfer electrons through a series of proteins, ultimately producing ATP through chemiosmosis.