Cellular Respiration Review

Front

What is cellular respiration?

Back

Cellular respiration is the process by which carbon-based molecules from food and oxygen are used to produce ATP, the energy currency of the cell.

Front

What happens to the Krebs cycle in the absence of oxygen?

Back

The Krebs cycle does not occur if oxygen is not present.

Front

Where does glycolysis take place in a cell?

Back

Glycolysis takes place in the cytoplasm of a cell.

Front

What is the starting molecule for glycolysis?

Back

The starting molecule for glycolysis is glucose.

Front

What molecule carries energy in cells?

Back

ATP (adenosine triphosphate) carries energy in cells.

Front

What are the two main stages of cellular respiration?

Back

The two main stages of cellular respiration are glycolysis and aerobic respiration (which includes the Krebs cycle and electron transport chain).

Front

What is the role of oxygen in cellular respiration?

Back

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

Front

What is produced during glycolysis?

Back

Glycolysis produces 2 molecules of pyruvic acid, 2 ATP, and 2 NADH.

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) that are used in the electron transport chain to generate ATP.

Front

What is fermentation?

Back

Fermentation is an anaerobic process that allows for the production of ATP without oxygen, resulting in byproducts like lactic acid or ethanol.