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5 Written questions

5 Matching questions

  1. what can be turned into Acetyl-CoA?
  2. FAD
  3. what do you need to know about pyruvate dehydrogenase complex?
  4. step 2
  5. step 5
  1. a succinyl CoA (4c) is transformed into succinate (4c) with the help of succinyl CoA synthetase, transforming GDP + Pi into GTP with the energy released from the C-S bond
  2. b pyruvate, fats, amino acids, ketone bodies
  3. c citrate (6c) is isomerized to isocitrate (6c) with the help of aconitase
  4. d flavin adenine dinucleotide, a biological oxidizing agent that is reduced to FADH2; comes from riboflavin
  5. e its coenzymes include b-vitamins (water soluble) that act as recyclable prosthetic groups; it's the most irreversible reaction in our body/there's no getting around it, so once acetyl-CoA is made, you cannot go back

5 Multiple choice questions

  1. a 2-electron oxidizing agent that is reduced to NADH; comes from nicatinamide, or niacin
  2. isocitrate (6c) is oxidized to form alpha-ketoglutarate (5c) with the help of isocitrate dehydrogenase, transforming NAD+ into NADH and releasing H+ and CO2
  3. all of them
  4. fats, ketone bodies, cholesterol (NOT glucose!)
  5. pyruvate + NAD+ + CoA-SH (coenzyme A) ----pyruvate dehydrogenase complex---> CH3C(=O)SCoA (acetyl coa) + NADH + CO2

5 True/False questions

  1. isocitratethe conjugate base of citric acid; a tertiary ROH that is not easily oxidized (that's why it's isomerized in the cycle)


  2. NAD+ vs. NAD: which is the better oxidizing agent? reducing agent?FAD, NAD+


  3. step 8malate (4c) is oxidized into oxaloacetate with the help of malate dehydrogenase, transforming NAD+ into NADH and releasing H+


  4. what is citrate?a secondary alcohol that is oxidized to a ketone (alpha-kg)


  5. what do you need to know about CoA?it's normous and requires pantothenic acid, a water soluble vitamin, to make it