Cellular Respiration Review

Front

What is the main role of fermentation in cellular respiration?

Back

Fermentation allows glycolysis to continue making small amounts of ATP by regenerating NAD+.

Front

What process occurs during the Link Reaction of cellular respiration?

Back

In the Link Reaction, pyruvate is converted to acetyl-CoA, and NADH is produced, but ATP is not made from ADP and a phosphate.

Front

How many ATP molecules are produced from the complete breakdown of one molecule of glucose?

Back

30-38 ATP molecules are produced, depending on how much the cell uses the H+ concentration gradient for other processes.

Front

Where does glycolysis take place in the cell?

Back

Glycolysis occurs in the cytoplasm.

Front

Which types of organisms utilize cellular respiration for energy?

Back

Eukaryotes use cellular respiration for their energy needs.

Front

What is the first step of cellular respiration?

Back

The first step of cellular respiration is glycolysis.

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 role of NAD+ in cellular respiration?

Back

NAD+ acts as an electron carrier, accepting electrons during glycolysis and the Krebs cycle.

Front

What happens to pyruvate after glycolysis if oxygen is present?

Back

If oxygen is present, pyruvate enters the mitochondria and is converted to acetyl-CoA for the Krebs cycle.

Front

What is the Krebs cycle also known as?

Back

The Krebs cycle is also known as the citric acid cycle.