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5 Written questions

4 Matching questions

  1. Proteins regulate the acid-base balance of the blood by
    A) releasing an acid.
    B) binding sodium ions.
    C) releasing nitrogen.
    D) acting as buffers
  2. Treating a protein with acid, heat, or agitation will cause _______________, meaning that the three-dimensional structure of the protein has been altered (it unfolds).
  3. 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.
  4. Which of the following is not true about pepsin?
    A) Acid activates pepsin.
    B) Pepsin works best in an alkaline environment.
    C) Pepsin acts on food in the stomach.
    D) Amino acid chains are the digestive products of its action.
  1. a B
  2. b D - acting as buffers
  3. c Denaturation
  4. d D - the build up of fluids in extracellular spaces

5 Multiple choice questions

  1. A
  2. B
  3. C - Stomach and small intestine
  4. C - pepsin
  5. A

5 True/False questions

  1. Plant proteins do not match our needs for essential amino acids and therefore are called _______________ proteins.A


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


  3. Approximately how many different amino acids are used in the synthesis of body proteins?
    A) 9
    B) 29
    C) 5
    D) 20
    D - 20


  4. In proteins, amino acids are joined by _______________ bondsDenaturation


  5. A hereditary condition caused by an incorrect amino acid in the amino acid sequence of a protein chain is
    A) kwashiorkor.
    B) edema.
    C) marasmus.
    D) sickle cell anemia.
    D - sickle cell anemia