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5 Written questions

5 Matching questions

  1. What enzyme is released by the stomach to digest protein?
    A) Trypsin
    B) Lipoprotein lipase
    C) Pepsin
    D) Amylase
  2. All of the following are essential amino acids except
    A) lysine.
    B) methionine.
    C) threonine.
    D) alanine.
  3. Approximately how many different amino acids are used in the synthesis of body proteins?
    A) 9
    B) 29
    C) 5
    D) 20
  4. Johnny is 10 years old. He has had minimal protein intake for the last two years. He has just recently had surgery. What are the likely results of his deficient protein intake?
    A) His surgical wound will heal quickly and effectively, but he won't grow effectively.
    B) His surgical wound will heal effectively and he will grow normally because he can live off fat stores.
    C) The size of his vital organs, including his heart, liver, and muscles, will decrease.
    D) His surgical wound will not heal quickly and effectively, but he will grow effectively.
  5. Treating a protein with acid, heat, or agitation will cause _______________, meaning that the three-dimensional structure of the protein has been altered (it unfolds).
  1. a C - the size of his vital organs
  2. b D - 20
  3. c D - alanine
  4. d Denaturation
  5. e C - pepsin

5 Multiple choice questions

  1. incomplete
  2. C - it provides 7 kcal/g of energy
  3. B
  4. peptide
  5. A

5 True/False questions

  1. Wilma is an alcoholic. Her liver has been damaged to such a degree that it cannot produce the appropriate blood proteins for fluid balance. She develops a condition called edema, which is
    A) cardiovascular disease.
    B) extreme thirst.
    C) loss of muscle mass.
    D) the build up of fluids in extracellular spaces.
    D - the build up of fluids in extracellular spaces


  2. What is meant by the amino acid sequence of a protein?
    A) Number of side chains in the protein
    B) Order of appearance of amino acids in the peptide chain
    C) Order of appearance of only the essential amino acids in the protein
    D) Folding arrangement of the peptide chain
    C - pepsin


  3. _______________ is an important protein that acts as a hormone. It is produced by the beta cells of the pancreas.A


  4. The nitrogen from amino acid breakdown is
    A) oxidized to carbohydrate.
    B) converted to urea.
    C) stored in the liver.
    D) converted to fat.


  5. When protein consumption is in excess of body needs and energy needs are met, the excess amino acids are metabolized and the energy in the molecule is
    A) stored as glycogen and/or fat.
    B) stored as amino acids in the liver.
    C) excreted in the urine.
    D) stored as amino acids in muscle.