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 Citric Acid Cycle (Krebs Cycle), and Oxidative Phosphorylation.

Front

What is the role of glycolysis in cellular respiration?

Back

Glycolysis breaks down glucose into pyruvate, producing a small amount of ATP and NADH in the process.

Front

What is the Citric Acid Cycle (Krebs Cycle)?

Back

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

Front

What is oxidative phosphorylation?

Back

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

Front

What are electron carriers in cellular respiration?

Back

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

Front

What is the significance of the electron transport chain?

Back

The electron transport chain is crucial for creating a proton gradient that drives ATP synthesis through chemiosmosis.

Front

What is fermentation?

Back

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

Front

What is the byproduct of cellular respiration?

Back

The main byproducts of cellular respiration are carbon dioxide (CO2) and water (H2O).

Front

What does a negative delta G indicate about a reaction?

Back

A negative delta G indicates that the reaction is exergonic, meaning it releases energy.