Glycolysis and Krebs Cycle

Figure 9.1 illustrates some of the steps (reactions) of glycolysis in their proper sequence. Each step is lettered. Use these letters to answer the question: What letter represents a molecule accepting electrons in glycolysis.

• A

• B

• C

• D

Tags

NGSS.HS-LS1-7

_____ molecules of NADH are produced by a molecule of glucose through the Krebs cycle.

• 0

• 2

• 4

• 6

Tags

NGSS.HS-LS2-3

In Krebs cycle, Acetyl CoA will combine to _____________ to form ___________

• oxaloacetate, citrate

• fumarate, malate

Tags

NGSS.HS-LS2-3

ATP is produced when _________ is converted to ____________

• succinyl CoA, succinate

• citrate, isocitrate

• fumarate, malate

Tags

NGSS.HS-LS1-7

• NADH and FADH₂

• NADH

• FADH₂

• NADH and CO₂

Tags

NGSS.HS-LS1-7

How many turns of the Krebs cycle per glucose molecule?

Tags

NGSS.HS-LS1-7

How does glycolysis lead to ATP synthesis?

• Glucose provides the phosphate for ADP to synthesize ATP

• Glycolysis splits the glucose molecule to create G3P

• High energy electrons are stored in NADH for the ETC

• Acetyl CoA is synthesized for the Krebs cycle

Tags

NGSS.HS-LS2-3

Match the reactants to the appropriate process:

Groups:

(a) Glycolysis

,

(b) Link Reaction

,

(c) Krebs Cycle

,

(d) ETC

• 2 Acetyl Coenzyme A

• 2 Pyruvate

• 2 FADH2

• 10 NADH

• 2 Coenzyme A

• 2 ATP

• Glucose

• 6 Oxygen

Tags

NGSS.HS-LS1-6

NGSS.HS-LS1-7

What is the name of the chemical that gets put in to the Krebs Cycle?

The chemical from glycolysis combines with a 4 carbon molecule called what?

• citric acid

• pyruvate

• acetyl-coA

• ATP synthase