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

Where does glycolysis occur?

Back

Glycolysis occurs in the cytoplasm of the cell.

Front

What are the three main stages of cellular respiration?

Back

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

Front

What is the role of NADH and FADH2 in cellular respiration?

Back

NADH and FADH2 are electron carriers that transport electrons to the electron transport chain.

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 from the breakdown of acetyl-CoA.

Front

What is oxidative phosphorylation?

Back

Oxidative phosphorylation is the process of ATP production that occurs in the electron transport chain, using the energy from electrons to pump protons and create a proton gradient.

Front

What is the significance of the proton gradient in cellular respiration?

Back

The proton gradient created during electron transport is used by ATP synthase to produce ATP.

Front

What is anaerobic respiration?

Back

Anaerobic respiration is a type of respiration that occurs without oxygen, resulting in less energy production compared to aerobic respiration.

Front

What are the end products of anaerobic respiration in yeast?

Back

The end products of anaerobic respiration in yeast are ethanol and carbon dioxide.

Front

What is phosphorylation?

Back

Phosphorylation is the addition of a phosphate group to a molecule, often to ADP to form ATP.