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Questions and Answers
What is the end product of the breakdown of the 6 carbon atoms in citric acid?
What is the end product of the breakdown of the 6 carbon atoms in citric acid?
2 molecules of carbon dioxide and a 4-carbon molecule
What molecule is needed to start the reactions of the cycle and is remade with every turn?
What molecule is needed to start the reactions of the cycle and is remade with every turn?
ADP
How many molecules of pyruvic acid are produced from 1 molecule of glucose in glycolysis?
How many molecules of pyruvic acid are produced from 1 molecule of glucose in glycolysis?
2 molecules
How many ATP molecules are produced from each starting molecule of glucose in the Krebs cycle?
How many ATP molecules are produced from each starting molecule of glucose in the Krebs cycle?
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What happens to carbon dioxide after it diffuses out of the mitochondria and the cell?
What happens to carbon dioxide after it diffuses out of the mitochondria and the cell?
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Which molecules are produced from the breakdown of the 6 carbon atoms in citric acid?
Which molecules are produced from the breakdown of the 6 carbon atoms in citric acid?
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What happens to ADP during each turn of the Krebs cycle?
What happens to ADP during each turn of the Krebs cycle?
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What is the end product of glycolysis from 1 molecule of glucose?
What is the end product of glycolysis from 1 molecule of glucose?
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How many complete turns of the Krebs cycle result from each starting molecule of glucose?
How many complete turns of the Krebs cycle result from each starting molecule of glucose?
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What happens to NAD+ and FAD in the presence of oxygen?
What happens to NAD+ and FAD in the presence of oxygen?
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Study Notes
Krebs Cycle
- End Product: Six carbon atoms in citric acid are broken down into six molecules of carbon dioxide.
- Starting Molecule: Oxaloacetic acid is needed to start the cycle and is remade with every turn.
- ATP Production: The Krebs cycle produces two molecules of ATP per turn.
Glycolysis
- Pyruvic Acid Production: Two molecules of pyruvic acid are produced from one molecule of glucose during glycolysis.
- End Product: The end product of glycolysis from one molecule of glucose is two molecules of pyruvate.
Other Metabolic Processes
- Carbon Dioxide Fate: After diffusing out of the mitochondria and the cell, carbon dioxide is expelled from the body through respiration.
- Krebs Cycle Turns: Two complete turns of the Krebs cycle result from each starting molecule of glucose.
- NAD+ and FAD: In the presence of oxygen, NAD+ and FAD are reduced to NADH and FADH2, respectively, by gaining electrons.
- ADP in Krebs Cycle: ADP is phosphorylated to ATP during each turn of the Krebs cycle.
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Description
Krebs Cycle and Glycolysis Quiz: Test your knowledge of cellular respiration and energy production with this quiz on the Krebs Cycle and Glycolysis. Challenge yourself to understand the breakdown of glucose, production of ATP, and the key molecules involved in these metabolic pathways.
