CHEM 465 CAC and Electron Transfer

What is being broken down during the Citric Acid Cycle?

• Carbon Dioxide

• NADH

• Acetyl Groups

• ATP

Is NADH and FADH2 being reduced or oxidized in the Citric Acid Cycle?

• Reduced

• Oxidized

• Both Reduced and Oxidized

• Neither Reduced or Oxidized

Is the Citric Acid Cycle an aerobic or anaerobic process?

• Aerobic

• Anaerobic

• Neither Aerobic or anaerobic

• Both Aerobic and Anaerobic

NADH and FADH2 are oxidized by transferring electrons to O2 making H2O. This process generates high energy ____ utilizing which ATP is synthesized.

• H+ Gradient

• Electrons

• ADP

• Protons

Organize these options into the right categories

Groups:

(a) Pyruvate Dehydrogenase

,

(b) Dihydrolipoyl Transacetylase

,

(c) Dihydrolipoyl Dehydrogenase

• Coenzyme A

• NAD+

• Lipoate

• TPP

• FAD

What three enzymes make up the Mega Enzyme Complex Pyruvate Dehydrogenase Complex?

• Pyruvate Dehydrogenase

• Dihydrolipoyl Transacetylase

• Dihydrolipoyl Dehydrogenase

• Pyruvate Synthase

• Pyruvate Kinase

What is produced when pyruvate is being decarboxylated?

• Carbon Dioxide

• Acetyl-CoA

• H2O

• Oxaloacetate

Which of the two substrates are diffusible coenzymes during the mega enzyme complex Pyruvate Dehydrogenase Complex?

• Coenzyme A

• NAD+

• TPP

• FAD

• Lipoic Acid

Lipoate uses this functional group due to the reversible oxidation it can go through.

Reorder the following of the first four enzymes in the Citric Acid Starting with Oxaloacetate.

1.​ (a)   2.​ (b)   ​ 3. (c)   4. (d)  

• Citrate Synthase
• Aconitase
• Isocitrate Dehydrogenase
• α-ketoglutarate Dehydrogenase Complex
• Succinyl-CoA Synthase
• Succinate Dehydrogenase
• Fumarase
• Malate Dehydrogenase
• Pyruvate Dehydrogenase Complex