AP Bio Insta-Review Topic 3.6: 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 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 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

Where does the Krebs Cycle occur?

Back

The Krebs Cycle occurs in the mitochondrial matrix.

Front

What is the role of NADH in cellular respiration?

Back

NADH carries electrons to the electron transport chain, where they are used to generate ATP.

Front

What is oxidative phosphorylation?

Back

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

Front

What is the significance of the cristae in mitochondria?

Back

Cristae increase the surface area for the electron transport chain, enhancing ATP production.

Front

What is the difference between aerobic and anaerobic respiration?

Back

Aerobic respiration requires oxygen and produces more ATP, while anaerobic respiration occurs without oxygen and produces less ATP.

Front

What is fermentation?

Back

Fermentation is an anaerobic process that allows for the regeneration of NAD+ by converting pyruvate into lactic acid or ethanol.

Front

How do prokaryotes perform cellular respiration?

Back

Prokaryotes perform cellular respiration on their plasma membrane, as they lack mitochondria.