Milk Physical Properties Quiz
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Questions and Answers

What causes the yellowish color of some milk?

  • Addition of artificial coloring
  • Presence of carotenes (correct)
  • High fat content
  • Exposure to sunlight
  • Which component of milk combines with calcium ion to form insoluble calcium caseinate (milk clot)?

  • Casein (correct)
  • Enzymes
  • Lact-globulin
  • Lact-albumin
  • What effect does skimming (depriving of fat) have on the specific gravity of milk?

  • Rises (correct)
  • Decreases
  • Becomes variable
  • Remains unchanged
  • Which compound in milk is rich in methionine but poor in cysteine and cystine?

    <p>(lactoalbumin + lactoglobulin)</p> Signup and view all the answers

    What is the pH range of human's milk?

    <p>6.6-7.4</p> Signup and view all the answers

    Which compound in milk is not coagulated by heat, gives negative sulfur test, and precipitates at pH 4.6?

    <p>Casein</p> Signup and view all the answers

    What is the ratio of Casein to lact-albumin + lactoglobulin in milk?

    <p>1:3</p> Signup and view all the answers

    What effect does skimming (depriving of fat) have on the specific gravity of milk?

    <p>Specific gravity increases</p> Signup and view all the answers

    What is the color of milk due to the presence of carotenes?

    <p>Yellowish</p> Signup and view all the answers

    Which mineral is deficient in milk?

    <p>Iron</p> Signup and view all the answers

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