NAME: ________________________

CHE310 - Krebs Cycle Test

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5 Written Questions

5 Matching Questions

  1. what do you need to know about CoA?
  2. step 2
  3. what can be turned into Acetyl-CoA?
  4. FAD
  5. NAD+ vs. NAD: which is the better oxidizing agent? reducing agent?
  1. a citrate (6c) is isomerized to isocitrate (6c) with the help of aconitase
  2. b it's normous and requires pantothenic acid, a water soluble vitamin, to make it
  3. c flavin adenine dinucleotide, a biological oxidizing agent that is reduced to FADH2; comes from riboflavin
  4. d pyruvate, fats, amino acids, ketone bodies
  5. e FAD, NAD+

5 Multiple Choice Questions

  1. alpha-ketoglutarate (5c) is oxidized to form succinyl coA (4c) with the help of alpha-ketoglurate dehydrogenase complex, transforming NAD+ into NADH, bringing in CoA, and releasing CO2 and H+
  2. the conjugate base of citric acid; a tertiary ROH that is not easily oxidized (that's why it's isomerized in the cycle)
  3. a secondary alcohol that is oxidized to a ketone (alpha-kg)
  4. inner mitochondrial matrix
  5. ATP, NADH, succinyl CoA

5 True/False Questions

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

          

  2. step 7isocitrate (6c) is oxidized to form alpha-ketoglutarate (5c) with the help of isocitrate dehydrogenase, transforming NAD+ into NADH and releasing H+ and CO2

          

  3. step 5succinyl 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

          

  4. there are ___ control pointsinner mitochondrial matrix

          

  5. step 3alpha-ketoglutarate (5c) is oxidized to form succinyl coA (4c) with the help of alpha-ketoglurate dehydrogenase complex, transforming NAD+ into NADH, bringing in CoA, and releasing CO2 and H+

          

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