Unit 7.1 Glycolysis and The Krebs Cycle

Which is a product of glycolysis?

• 2 molecules of pyruvic acid

• 1 molecule of glucose

• NAD+

• oxygen

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NGSS.HS-LS1-7

Where does the pyruvic acid produced by glycolysis go next?

• the Calvin Cycle

• the electron transport chain

• the Krebs Cycle

• back through the glycolysis process

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NGSS.HS-LS1-7

Which of these is broken down into pyruvic acid (a.k.a pyruvate)?

• glucose

• oxygen

• water

During glycolysis, glucose is broken down into how many molecules of pyruvic acid?

• 2

• 3

• 4

• 1

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NGSS.HS-LS2-3

Glycolysis has a net gain of how many ATP molecules?

• 2

• 4

• 6

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NGSS.HS-LS1-7

The initial reaction of the Krebs cycle produces:

• Glucose and pyruvate

• H₂O and CO₂

• CO₂, acetyl-CoA, and NADH

• Coenzyme A and NADH

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NGSS.HS-LS1-7

Where does the Krebs cycle take place?

• Cytoplasm

• Inner Mitochondrial Membrane

• Outer Mitochondrial Membrane

• Mitochondrial Matrix

The number of ATP molecules produced out of Krebs Cycle is:

• 2
• 3
• 4
• 0

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NGSS.HS-LS1-7

How many FADH₂ molecules are produced by 1 turn of the Krebs Cycle?

• 1
• 2
• 3
• 4

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NGSS.HS-LS2-3

CHALLENGE: How many CO₂ molecules are produced by the Krebs Cycle for a molecule of glucose?

• 2

• 4

• 6

• 3