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5 Written questions

5 Matching questions

  1. An example of a protein with quaternary polypeptide structure is
    a. insulin
    b. typtophan
    c. hemoglobin
    d. disulfide bridges
  2. What is the name of the inactive form of the protein- splitting enzyme in the stomach?
    a. peptidase
    b. propepsin
    c. pepsinogen
    d. propeptidase
  3. Protein-hydrolyzing ensymes are commonly known as
    a. proteases
    b. hydrolyzers
    c. prodigestins
    d. denaturases
  4. What is the simplest amino acid?
    a. valine
    b. glycine
    c. alanine
    d. methionine
  5. After a hamburger is eaten, in what organ is the hydrolysis of its proteins initiated?
    a. mouth
    b. stomach
    c. small intestines
    d. large intestines
  1. a b. glycine
  2. b c. hemoglobin
  3. c c. pepsinogen
  4. d ...
  5. e b. stomach

5 Multiple choice questions

  1. a. The side group
  2. a. Proline
  3. c. denaturation
  4. b. Sulfur
  5. d. Condensation

5 True/False questions

  1. The following amino acids are linked together: glycine- lysine- valine. This compound is a
    a. dipeptide
    b. tripeptide
    c. polypeptide
    d. oligopeptide
    b. tripeptide


  2. All of the following are contained in an amino acid except?
    a. an acid group
    b. an amino group
    c. an aldehyde group
    d. a central carbon atom
    b. Sulfur


  3. What digestive enzyme would be most affected in people who are unable to produce hydrochloric acid?
    a. pepsin
    b. transaminase
    c. pancreatic protease
    d. intestinal peptidase
    b. Three amino acids bonded together


  4. What element is found in proteins but not in carbohydrates and fats?
    a. Carbon
    b. Oxygen
    c. Calcium
    d. Nitrogen
    c. hemoglobin


  5. What amino acid is classified as conditionally essential when dietary intake of phenylalanine is insufficient or the body cannot normally metabolize phenylalanine?
    a. cysteine
    b. tyrosine
    c. glutamine
    d. isoleucine
    b. tyrosine