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5 Written questions

5 Matching questions

  1. Terms used to classify amino acids in the diet include all of the following except
    a. essential
    b. nonessential
    c. partially essential
    d. conditionally essential
  2. What is the simplest amino acid?
    a. valine
    b. glycine
    c. alanine
    d. methionine
  3. Which of the following would be classified as a polypeptide?
    a. 1 amino acid
    b. 3 amino acids bonded together
    c. 9 fatty acids bonded together
    d. 20 amino acids bonded together
  4. 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
  5. What process results in the hardening of an egg when it is exposed to heat?
    a. solidification
    b. denaturation
    c. condensation
    d. protein interaction
  1. a b. denaturation
  2. b c. partially essential
  3. c a. pepsin
  4. d d. 20 amino acids bonded together
  5. e b. glycine

5 Multiple choice questions

  1. b. can be synthesized by the body
  2. ...
  3. b. secondary structure
  4. d. 20
  5. stomach

5 True/False questions

  1. Which of the following elements is found in certain amino acids?
    a. Iron
    b. Sulfur
    c. Calcium
    d. Potassium
    b. Sulfur


  2. 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


  3. What is the name of the inactive form of the protein- splitting enzyme in the stomach?
    a. peptidase
    b. propepsin
    c. pepsinogen
    d. propeptidase
    c. order of the amino acids in the peptide chain


  4. The application of heat or acid to a protein that causes its shape to change is known as
    a. stiffening
    b. condensation
    c. denaturation
    d. destabilization
    c. order of the amino acids in the peptide chain


  5. An example of a protein with quaternary polypeptide structure is
    a. insulin
    b. typtophan
    c. hemoglobin
    d. disulfide bridges
    c. hemoglobin