Cellular Respiration Review

Front

What is the primary function of mitochondria in cellular respiration?

Back

Mitochondria are the organelles where aerobic cellular respiration occurs, producing ATP through the Krebs cycle and oxidative phosphorylation.

Front

What is the starting molecule for glycolysis?

Back

The starting molecule for glycolysis is glucose.

Front

What is glycolysis and where does it occur?

Back

Glycolysis is the first step of cellular respiration where glucose is broken down into pyruvate, occurring in the cytoplasm.

Front

What are the end products of glycolysis?

Back

The end products of glycolysis are 2 pyruvate molecules, 2 ATP, and 2 NADH.

Front

What is the Krebs cycle and where does it take place?

Back

The Krebs cycle, also known as the citric acid cycle, takes place in the mitochondria and processes acetyl-CoA to produce ATP, NADH, and FADH2.

Front

What conditions are necessary for the Krebs cycle to occur?

Back

The Krebs cycle requires the presence of oxygen to proceed.

Front

What is lactic acid fermentation and when does it occur?

Back

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

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 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 are the main stages of cellular respiration?

Back

The main stages of cellular respiration are glycolysis, the Krebs cycle, and oxidative phosphorylation.