Honors Biology Chapter 9 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 is the main purpose of ATP in cellular respiration?

Back

ATP (adenosine triphosphate) serves as the primary energy carrier in cells, providing energy for various cellular processes.

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 (ETC).

Front

What happens during glycolysis?

Back

Glycolysis is the first stage of cellular respiration where glucose is broken down into two molecules of pyruvate, producing a small amount of ATP and NADH.

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 lactic acid fermentation?

Back

Lactic acid fermentation is an anaerobic process that occurs in muscle cells when oxygen is scarce, converting pyruvate into lactic acid and regenerating NAD+.

Front

What is alcoholic fermentation?

Back

Alcoholic fermentation is an anaerobic process used by yeast and some bacteria, converting glucose into ethanol and carbon dioxide.

Front

What are the reactants of cellular respiration?

Back

The reactants of cellular respiration are glucose and oxygen.

Front

What are the products of cellular respiration?

Back

The products of cellular respiration are carbon dioxide, water, and ATP.

Front

How does ATP release energy?

Back

ATP releases energy when a phosphate group is removed, converting it to ADP (adenosine diphosphate).