Krebs Cycle

How much of the glucose is left after Krebs cycle?

• 75%

• 0%

• 50%

• 25%

Tags

NGSS.HS-LS1-7

How are electrons extracted during the Krebs cycle transferred to the electron transport chain (ETC)

• CO2

• NADH

• FADH2

• ATP

Tags

NGSS.HS-LS1-7

What is the difference between NADH and FADH2?

• Both are electron carriers, FADH2 occurs in the Krebs cycle and NADH occurs in glycolysis

• Both are electron carriers, FADH2 holds higher energy electrons

• Both are electron carriers, NADH occurs in glycolysis and FADH2 occurs in the Krebs cycle.

• Both are electron carriers, NADH holds higher energy electrons

Tags

NGSS.HS-LS1-7

Before entering Krebs Cycle, pyruvate is:

• Oxidized

• Reduced

• Isomerized to Acetyl-CoA

• Phosphorylated

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

• 2

• 3

• 4

• 0

Tags

NGSS.HS-LS1-7

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

• 2

• 3

• 4

• 6

Tags

NGSS.HS-LS1-7

Prior to entering the Krebs Cycle, each pyruvate molecule loses electrons, hydrogen ions, and a carbon, forming an energy-rich molecule of

• Acetyl-CoA

• Citrate

• Oxaloacetate

• Malate

Tags

NGSS.HS-LS1-7

The Kreb's Cycle is also known as:

• The Pyruvic Cycle

• The Respirational Cycle

• The Citric Acid Cycle

• The Berk Cycle

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

• 1

• 2

• 3

• 4

Tags

NGSS.HS-LS1-7

Which molecules are made during the Krebs Cycle to power the electron transport chain?

• ATP and CO₂

• ATP and NADH

• NADH and FADH₂

• ADP, NAD⁺ and FAD⁺

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3