Aerobic Respiration

How many carbon atoms does pyruvate have?

• 2 atoms
• 3 atoms
• 6 atoms
• 1 atom
• 5 atoms

When pyruvate is converted to acetyl CoA, what are the products of the reaction?

• Reduced NADH, CO2 and Acetyl CoA
• Oxidised NADH, CO2 and Acetyl CoA
• Reduced NADH, CO2 and Pyruvate
• Reduced NADPH, CO2 and Acetyl CoA
• Reduced NADH, O2 and Acetyl CoA

How many carbon atoms does acetyl have?

• 2 atoms

• 3 atoms

• 6 atoms

• 1 atom

For each molecule of glucose that enters glycolysis how many molecules of acetyl CoA will be produced?

• 2 because 2 pyruvates are produced for every 1 glucose molecule in glycolysis
• 3 because 6 carbons divided by 2 goes 3 times
• once only

How many pyruvate molecules does glycolysis produce?

• 5 molecules
• 6 molecules
• 2.5 molecules
• 3 molecules
• 2 molecules

What happens in oxidative decarboxylation?

• CO2 and hydrogen ARE removed in the link reaction

• CO2 and hydrogen ARE NOT removed in the link reaction

Where does oxidative decarboxylation occur (link reaction)?

• Cytoplasm

• mitochondria

• mitochondrial matrix

• stroma

• thylakoid membrane<br />

What is the acceptor for the 2C acetyl group that is produced in oxidative decarboxylation?

• NADPH
• Coenzyme A
• NADH
• FADH2

Why is the link reaction called the link reaction?

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For each molecule of acetyl that enters the Krebs cycle how many CO2 molecules are produced?

• 3 carbon dioxides
• 4 carbon dioxides
• 6 carbon dioxides
• 2 carbon dioxides