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Fatty acid catabolism

Quiz by Kenneth Francis Wibisono

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10 questions
Show answers
  • Q1
    What is beta oxidation?
    A process that converts glucose into ATP.
    A process that converts amino acids into proteins.
    A metabolic process that breaks down fatty acids into acetyl-CoA.
    A process that converts glucose into glycogen.
    30s
  • Q2
    Where does beta oxidation occur in the cell?
    In the cytoplasm.
    In the mitochondria.
    In the nucleus.
    In the ribosomes.
    30s
  • Q3
    What is the final product of beta oxidation?
    Glucose.
    Alanine.
    Lactic acid.
    Acetyl-CoA.
    30s
  • Q4
    What is the role of carnitine in beta oxidation?
    It converts fatty acids into acetyl-CoA.
    It transports acetyl-CoA out of the mitochondria.
    It converts fatty acids into glucose.
    It transports fatty acids into the mitochondria.
    30s
  • Q5
    What happens to the NADH and FADH2 produced by beta oxidation?
    They are converted into glucose.
    They enter the citric acid cycle to generate ATP.
    They are eliminated from the cell.
    They enter the electron transport chain to generate ATP.
    30s
  • Q6

    Where does the synthesis of fatty acyl-coA occur?

    Cell membrane

    Mitochondria

    Cytoplasm

    Nucleus

    30s
  • Q7

    How many rounds of beta oxidation needed to completely degrade stearic acid (C18) and how many acetyl coA is produced?

    10 rounds, 11 acetyl coA

    7 rounds, 8 acetyl coA

    8 rounds, 9 acetyl coA

    9 rounds, 8 acetyl coA

    30s
  • Q8

    What are they key enzymes in regulation of fatty acid metabolism?

    PDH complex

    ACC and carnithine acyl transferase

    malonyl coA

    PDP

    30s
  • Q9

    How does ACC regulates fatty acid metabolism?

    ACC inhibits prevents malonyl coA to bond with fatty acyl coA

    ACC converts fatty acyl coA back into fatty acid

    ACC converts acetyl coA to malonyl coA which inhibits fatty acid transport into mitochondria

    ACC inactivates the fatty acyl transferase enzyme which makes fatty acyl coA

    30s
  • Q10

    If TCA cannot happen, what happens to acetyl coA?

    converted into aldehyde bodies

    converted back to fatty acyl coA

    converted into ketone bodies

    enter Cori cycle

    30s

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