The Krebs Cycle

The "regenerator" of the Krebs Cycle is: (it reacts with acetyl coA to produce citrate)

• Oxaloacetate

• Acetyl-CoA

• Citrate

• α-Ketoglutarate

Before entering Krebs Cycle, pyruvate is:

• Oxidized
• Reduced
• Isomerized to Acetyl-CoA
• Phosphorylated

Tags

NGSS.HS-LS1-7

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

• 2
• 3
• 4
• 0

How many FADH₂ molecules are produced by 1 molecule of glucose?

• 1
• 2
• 3
• 4

Tags

NGSS.HS-LS1-7

How many NADH molecules are produced by a molecule of glucose through the Krebs' Cycle?

• 2
• 3
• 4
• 6

Which of the following is not a direct requirement in the Krebs Cycle?

• NAD+
• FAD

• Water
• Pyruvate

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

• 2
• 4
• 6
• 3

After Krebs Cycle, how many Carbon atoms from the original glucose molecule remain?

• 0
• 1
• 3
• 2

Tags

NGSS.HS-LS2-5

Krebs Cycle takes place in the:

• Cytoplasm
• Matrix
• Ribsome
• InterMembrane Space

Krebs Cycle is part of_______________ respiration.

• Aerobic
• Anaerobic

Tags

NGSS.HS-LS2-3

NGSS.HS-LS2-5