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10-item Test On Energy Metabolism

10 Questions
10-item Test On Energy Metabolism

MULTIPLE CHOICETest your knowledge in carbohydrate metabolism. You have 4 minutes to complete the test.

Questions and Answers
  • 1. 
    Which of the following statements is true about catabolic pathways?
    • A. 

      They combine molecules into more complex and energy-rich molecules.

    • B. 

      They are usually coupled with anabolic pathways to which they supply energy in the form of ATP.

    • C. 

      They involve endothermic reactions that break complex molecules into simpler ones.

    • D. 

      They do not need enzyme catalysts.

    • E. 

      They build up complex molecules such as proteins from amino acids.

  • 2. 
    The hydrolysis of sucrose by the enzyme sucrase results in
    • A. 

      Bringing glucose and fructose together to form sucrose.

    • B. 

      Utilization of water as a glycosidic linkage is formed between glucose and fructose.

    • C. 

      Combination of glucose and fructose to form sucrase.

    • D. 

      The addition of free water to sucrose as the linkage between glucose and fructose is formed.

    • E. 

      Breaking the bond between glucose and fructose by breaking a water molecule and adding an H+ to one and an OH- to the other.

  • 3. 
    Which term most precisely describes the general process of combining small molecules to form large molecules ?
    • A. 

      Exothermic reaction

    • B. 

      Dehydration reaction.

    • C. 

      Metabolism

    • D. 

      Catabolism

    • E. 

      Anabolism

  • 4. 
    After digestion, what happens when glucose is not immediately metabolized or converted to glycogen?
    • A. 

      It is directed towards the large intestine where it is immediately excreted in the form of feces.

    • B. 

      It is reabsorbed in the small intestine.

    • C. 

      Hyperglycemia will develop.

    • D. 

      Hypoglycemia will deveop.

    • E. 

      The blood will become acidic.

  • 5. 
    Which of the following statements does not describe glycolysis?
    • A. 

      It is an aerobic process.

    • B. 

      It is also known as the Embden-Meyerhoff pathway.

    • C. 

      It supplies the ATP needed for muscle contraction.

    • D. 

      It takes place in the cytoplasm of the cell.

    • E. 

      It breaks down a molecule of glucose to 2 molecules of pyruvate.

  • 6. 
    • A. 

      40

    • B. 

      36

    • C. 

      26

    • D. 

      12

    • E. 

      2

  • 7. 
    The following are the important products of glycolysis except
    • A. 

      2 molecules of NADH.

    • B. 

      2 molecules of ADP.

    • C. 

      2 molecules of pyruvate.

    • D. 

      2 molecules of ATP.

  • 8. 
    The following conditions / processes will remove excess glucose from the blood except
    • A. 

      Glycogenesis.

    • B. 

      Glycogenolysis.

    • C. 

      Presence of insulin.

    • D. 

      Conversion to fat.

  • 9. 
    Which of the following functions is not performed by insulin?
    • A. 

      It promotes glucose absorption in the bloodstream.

    • B. 

      It increases cellular uptake of glucose.

    • C. 

      It inhibits glycogenolysis.

    • D. 

      It promotes the oxidation of glucose in the cell.

  • 10. 
    All of the following conditions may likely happen when carbohydrate is totally removed from the diet except
    • A. 

      The body will switch into preparing glucose from non-carbohydrate sources.

    • B. 

      The blood may become acidic due to the formation of ketone and acids as byproducts of the metabolism of fatty acids.

    • C. 

      The person may lose weight.

    • D. 

      Glucose may accumulate in the bloodstream resulting to hyperglycemia.