ISC Chapter 24

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  1. Which of these contained in blood, is found in the least number?
    B. leukocytes
  2. A patient comes into a doctor's office for an annual physical and displays a blood pressure reading of 125/75. Will the physician likely recommend treatment as a result of the reading?
    B. no
  3. The circulatory system picks up molecules from the digestive system here:
    B. intestine
  4. Which of the following nutrients is required in agreater amount for women than for men?
    B. iron
  5. Which nutrient helps to maintain the health of your bones?
    D. A and C
  6. While it may not seem obvious, the site of new blood cell creation occurs in the:
    A. bone
  7. Which human nutrient is inexpensive to deliver to consumers, high in easily metabolized energy and a leading factor in obesity?
    D. B and C
  8. In a starvation situation, your body will use ________last in an effort to maintain energy production.
    A. proteins
  9. A synapse is found between
    A. the axon of one neuron and the dendrite of another
  10. The bicuspid valve is located on the _________ side of the heart
    B. left
  11. Arteries and veins share all of these except
    B. valves
  12. Chemical and physical breakdown of food begins here
    C. mouth
  13. Which part of the skeleton protects the heart and lungs?
    D. ribs
  14. This activity requires the least amount of energy
    D. A and B
  15. A person who is 5’ 7” and weighs 170 lbs, would be placed in the ________ category
    A. moderate overweight
  16. The ability to transport materials into or out of a cell is determined by:
    D. the surface area of its cell membrane
  17. Microvilli in a cell membrane
    D. A and B
  18. Erythrocytes contain a molecule called ________ which increases the ability of blood to deliver oxygen to body systems over oxygen dissolved in the blood
    D. hemoglobin
  19. Lymphocytes protect the body from harmful agents by
    C. A and B
  20. Chambers of the heart which move blood to all parts of the body
    B. ventricles
  21. The right side of the heart is responsible for
    A. pulmonary circulation
  22. Blood collection from the capillaries for return to the heart is the function of:
    C. veins
  23. Water and dissolved materials that leak out of the small, thin capillaries are returned to the circulatory system by yet another system called the
    D. lymphatic
  24. The largest organ of the human body
    C. skin
  25. Our ability to sense pain starts in nerve endings found in this layer of skin
    C. dermis
  26. Gas exchange with blood takes place in respiratory system structures called
    B. alveoli
  27. Skin exposure to potential ultraviolet light from the Sun or tanning booths stimulates production of________ in defense
    A. melanin
  28. Exercise stimulates breathing because
    D. A and C
  29. The pH of the human stomach is about
    D. 2
  30. The breakdown of complex food molecules to simpler molecules
    A. digestion
  31. Molecules that must be consumed to maintain body
    D. all are necessary
  32. Which department of the U.S. federal government publishes dietary guidelines?
    D. Agriculture
  33. According to the 2005 Food Guide Pyramid, you shoul dingest 1-3 cups from this food group per day
    B. vegetables
  34. The skeleton of animals provides for
    D. all of these
  35. The BMI is a key measure of human
    A. obesity
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ISC Chapter 24
ISC Chapter 24
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