Cellular Respiration

Which is not a REACTANT of cellular respiration?

• CO₂

• NADH

• Glucose

• O₂

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What happens during GLYCOLYSIS?

• Oxygen is used to breakdown glucose molecules.

• ATP is produced from oxygen.

• Glucose is broken down into pyruvic acid.

• Pyruvic acid is broken down into Acetyl-CoA.

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What is the main product of glycolysis?

• CO₂

• Pyruvic acid

• Citric acid

• Energy

Where does the Krebs Cycle take place in eukaryotic cells?

• Cellular membrane

• Matrix of the mitochondria

• Inner-membrane of the mitochondria

• Cytoplasm of the cell

Pick ALL cells that go through the process of cellular respiration.

• Plant cells

• Animal cells

• Eukaryotic cells

• Prokaryotic cells

The Krebs Cycle will only start in the presence of which gas?

• CO₂

• H₂O

• O₂

• CH₄

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Pyruvic acid (pyruvate) is a 3-carbon molecule. During the Krebs Cycle, what happens to these 3 CARBON atoms?

• 1 carbon atom bonds with oxygen to form CO₂ and the other 2 carbon atoms form a part of Acetyl-CoA.

• They are bonded to another pyruvate to make glucose.

• They are broken apart to make ATP.

• Nothing, because they're lazy.

The Krebs Cycle PRODUCE which 2 high-electron carriers?

• NAD+ & FAD

• ATP & ADP

• NADH & FADH₂

• NADPH & ADP

What is a similarity between glycolysis and the Krebs Cycle?

• They both use glucose.

• They both do not require oxygen (directly or indirectly)

• They both occur in the same place in the cell.

• They both produce 2 molecules of ATP.

During which stage of cellular respiration is is the most ATP produced?

• Gycolysis

• Krebs Cycle

• Electron Transport Chain

• All stages produce the same amount