4.3 Study Guide

Question 1

Please state the order of the stages in cellular respiration.

Answer 1

1. Glycolysis.
2. The Link Reaction.
3. The Krebs Cycle.
4. The Elecron Transport Chain and ATP Synthesis.

Question 2

Please explain the inputs of each stage.

Answer 2

1. 2 ATP, 2 NAD+, 1 glucose.
2. 2 pyruvate, 2 NAD+, 2 coenzyme.
3. 2 Acetyl CoA molecules.
4. NADH, FADH2, protons, ADP, oxygen.

Question 3

Please explain the outputs of each stage.

Answer 3

1. 4 ATP molecules, 2 molecules of NADH, 2 molecules of pyruvate.
2. Acetyl coenzyme A.
3. 2 ATP, 6 NADH, 2 FADH2, 4 CO2.
4. NAD+, FAD, water, protons.

Question 4

Please state the location of each stage.

Answer 4

1. Cytoplasm.
2. The mitochondrial matrix.
3. Mitochondrial matrix.
4. The inner membrane of the mitochondria.

Question 5

Please explain the overall chemical equation for cellular respiration.

Answer 5

C6H12O6 + 6O2 yields 6CO2 + 6H2O + ATP.

Question 6

What happens in your cells to generate ATP when you have oxygen?

Answer 6

Allows electrons be transferred through the electron transport chain in order to create an electrochemical gradient for hydrogen to create ATP.

Question 7

What happens in your cells to generate ATP when you have no oxygen?

Answer 7

The electron transport chain will grind to a halt, and you won’t be able to make ATP to keep you alive.

Question 8

What is another name for the Krebs Cycle?

Answer 8

Citric acid cycle.

Question 9

By the end I’d the carbon cycle, the glucose molecules is completely ______ and converted to ______.

Answer 9

Broken down and carbon dioxide.