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Glycolysis

30 Questions
Glycolysis Quizzes & Trivia
Questions and Answers
  • 1. 
    What is the meaning of fermentation? and provide an example!
    • A. 

      The anaerobic harvest of food energy

    • B. 

      The aerobic harvest of food energy

    • C. 

      The use of ATP from cellular respiration

  • 2. 
    How does glycolysis make ATP directly?
    • A. 

      When enzymes transfer phosphate groups from fuel molecules to ADP

    • B. 

      When RNA transfer phosphate groups from fuel molecules to ADP

    • C. 

      When aminoacids transfer phosphate groups from fuel molecules to ADP

  • 3. 
    What is the name of the group that makes it possible for musles to work without oxygen supply for about 10 seconds?
    • A. 

      Adrenaline phosphate

    • B. 

      Phosphofructase kinase

    • C. 

      Creatine phosphate

  • 4. 
    What is the byproduct of glycolysis?
    • A. 

      NADH+

    • B. 

      NAD+

    • C. 

      Lactate

  • 5. 
    How does Glycolysis provide ATP during fermentation?
    • A. 

      Conversion of phosphofructase kinase to NAD+ which is then used in maintaining glycolysis

    • B. 

      Pyruvate is reduced by NADH, producing NAD+ which keeps glycolysis going

    • C. 

      By the Cellular respiration process, where the byproducts are CO2 and H2O

  • 6. 
    Various types of microorganisms perform fermentation. Yeast cells carry out a slightly different type of fermentation pathway. This pathway produces:
  • 7. 
    Describe the process of Alcohol fermentation
    • A. 

      Glucose, (glycolysis)-->2Pyruvate + CO2 --> Ethyl alcohol

    • B. 

      2Pyruvate--> (glycolysis)--> Glucose--> Ethyl alcohol

    • C. 

      Glycolysis-->2Pyruvate-->Ethyl alcohol

  • 8. 
    What are the stages of Glycolytic pathway?
    • A. 

      1. Preparatory stage where glucose is phosphorylated, Payoff stage- where 2 ATP is converted to Pyruvate and 4 ATPs

    • B. 

      Preparatory stage- where glycose is not phosphorylated but is used direct to cleave 2 molecules of glyceraldehyde, Payoff stage- Where 2 GAPs is converted to 6 ATPs and pyruvate

    • C. 

      Preparatory stage- where glucose is phophorylated and cleaved. Payoff stage- 4 ATPs are converted to 2 GAPs

    • D. 

      1. Payoff stage 2. Preparatory stage

  • 9. 
    Put the reactions of glycolysis in the right order in Stage 1 (preparatory stage)
    • A. 

      1. phosphoglucose isomerase, 2. phosphofructokinase, 3. Aldolase, 4. Hexokinase, 5. Triose phosphate Isomerase

    • B. 

      1. Hexokinase 2. Phosphoglucose isomerase 3. phosphofuctokinase 4. Aldoase 5. Triose Phosphate Isomerase

    • C. 

      1. Phosphoglucose isomerase 2. Hexokinase 3. Phosphofructokinase 4, Aldolase 5. Triose Phosphate Isomerase

  • 10. 
    Arange in right order Stage 2- (Payoff Phase)
    • A. 

      6. Glyceraldehyde-3 Phosphate Dehydrogenase 7. Phosphoglycerate Kinase 8. Phosphoglycerate Mutase 9. Enolase 10. Pyruvate Kinase

    • B. 

      6. Pyruvate kinase 7. Enolase 8. Glyceraldehyde-3-phosphate Dehydrogenase 9. Phosphoglycerate Kinase 10. Phosphoglycerate Mutase

    • C. 

      None of the above arrangements

  • 11. 
    Describe the processes in cori cycle
    • A. 

      Gluconeogenisis in muscles and glycolysis in muscles where glucose is converted to pyruvate and lactate

    • B. 

      Glycolysis in liver where glucose is converted to pyruvate and lactate. Glyconeogenesis in muscles.

    • C. 

      Glyconeogenesis in liver were lactate is converted to pyruvate and then glucose.Glycolysis in muscles

  • 12. 
    Under aerobic conditions pyruvate is decarboxylated to:
  • 13. 
    Acetate is oxidised further in the
    • A. 

      Citric Acid Cycle

    • B. 

      In UDPG

    • C. 

      TCA cycle

  • 14. 
    What results in the formation of CO2 and the transfer of electrons producing NADH and FADH2?
    • A. 

      Reducing potentials

    • B. 

      The reduction of NAD

    • C. 

      A series of oxidation reduction reactions

  • 15. 
    What is used to drive the phosphorylation of ADP to ATP?
    • A. 

      Reducing potentials of enzymes and aminoacids

    • B. 

      Reducing potentials of NADH and FADH2

    • C. 

      Oxidising potentials of glucose and NAD

  • 16. 
    The decarboxylation of Pyruvate, and the oxidation of acetate takes place in the:
    • A. 

      Ribosomal matrix

    • B. 

      Substrate matrix

    • C. 

      Mitochondrial matrix

  • 17. 
    In the mitochodrial inner membrane the electrons flow down the electron transport chain:
  • 18. 
    The Pyruvate Dehydrogenase Complex:
    • A. 

      Pyruvate and COA and NAD is converted to Acetyl Co A + carbondioxide+ NADH and H+

    • B. 

      Acetyl CO A + Co A + Pyruvate is converted to NAD+ and NADH + H+

    • C. 

      NAD+ and Acetyl COA is converted to pyruvate dehydrogenase and NADH

  • 19. 
    How many coenzymes does the PDH Compex use?
    • A. 

      3

    • B. 

      4

    • C. 

      5

  • 20. 
    Which are the five coenzymes used in the PDH complex?
    • A. 

      Three are prosethetic groups bond to their enzymes , ( TPP,Lipoamide,FAD) and Two are transiently associated with the complex ( Co A, NAD+/NADH

    • B. 

      Three are transiently associated with the complex; NAD+/NADH, Lipoamide, CoA Two are prosthetic groups: FAD, TPP

    • C. 

      TPP, NADH/NAD+ are prostethic groups and the lipoamide, CoA, FAD and TPP are associated with the complex

  • 21. 
    What drives the Citrate Synthase?
    • A. 

      The hydrolysis of vitamin C

    • B. 

      The hydrolysis of the thioacetate

    • C. 

      The hydrolysis of the thioester

  • 22. 
    The energy in Malate Dehydrogenase is:
    • A. 

      Positive

    • B. 

      Negative

    • C. 

      Equal to the electropotential gradient

  • 23. 
    For every acetate entering the TCA cycle:
    • A. 

      5 molecules of ATP/ acetate is produced

    • B. 

      8 molecules of ATP/ acetate is produced

    • C. 

      10 molecules of ATP/ acetate is produced

  • 24. 
    Describe the production of Ketone bodies:
    • A. 

      Acetoacetate is converted to Acetoacetyl CoA and then 2 Acetyl CoA

    • B. 

      Acetoacetate is converted to 2 Acetoacetyl CoA and then 4 Acetyl CoA

    • C. 

      Acetoacetate is converted to 2 Acetoacetyl Co A and then 6 Acetyl Co A

  • 25. 
    Ketoacidocis occurs during?
    • A. 

      Protein synthesis disorders

    • B. 

      Acoholism, starvation and diabetes

    • C. 

      Paired brain metabolism

  • 26. 
    Hypoketotic state?
    • A. 

      Is not associated with the metabolic disordes but the disorder to not produce ketone bodies to be used as energy for the brain

    • B. 

      Lipid metabolic disorders

    • C. 

      The liver is producing too many ketone bodies

  • 27. 
    Ketone bodies are normally used as:
    • A. 

      Energy source for the brain in peripheral tissued

    • B. 

      Energy source in the Cardiac muscle and Renal cortex but not the brain.

    • C. 

      Energy source in the production of bile and the proper functioning of kidneys.

  • 28. 
    Under starvation conditions:
    • A. 

      Muscle proteins can derive its energy from 80 precent of the ketone bodies

    • B. 

      Brain adapts and can derive 80 percent of its energy from ketone bodies

    • C. 

      Both of the above statements are false

  • 29. 
    Glycogen is:
    • A. 

      The other term for Glycolysis

    • B. 

      The storage carbohydrate in animals, insects and fungi.

    • C. 

      The directly used energy source for all chemical reactions in the body.

  • 30. 
    How many enzymes does Glycogen Breakdown require?
    • A. 

      3 ( Glycogen phosphorylase) (Glycogen debranching enzyme) (Phosphoglucomutase)

    • B. 

      4 ( phosphoglucomutase, fructophosphomutase, glycophosphate, Glycogen enzyme)

    • C. 

      2. ( Phosphoglucose and Phosphoglucomutase)