Chapter 12 review Nutritional Sciences

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lindseypb
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153426
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Chapter 12 review Nutritional Sciences
Updated:
2012-05-11 11:25:37
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Chapter 12
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  1. What gland responds to a lack of water in the body vy releasing a hormone?

    a)pineal

    b)hypothyroid

    c)pituatary

    d)thyroid
    C
  2. Calcium is important for:

    a)bone structure

    b)muscle contraction

    c)nerve impulse transmission

    d)a and b

    e)a and c

    f) all of the above
    F
  3. John, a senior in highschool routinely consumes 4-5 soft drinks a day and almost no dairy. What is he at increased risk for developing?

    a)magnesium toxicity, obesity

    b)potassium toxicity, rickets

    c)calcium defiency, demineralization of bone
    C
  4. Which mineral is a component of stomach acid?

    a)potassium

    b)sodium

    c)Chloride

    d)phosphorous
    C
  5. Biophosphonates are used in the treatment of osteoporosis. What is their effect?

    a)Inhibit bone breakdown

    b)increase calcium absorbtion

    c)increase vitamin D absorbtion

    d) promote bone formation
    A
  6. What are drugs used to lower blood pressure by helping the body eliminate water called?

    a)anti-tensives

    b)diuretics

    c)dihydrates
    B
  7. What is the term that refers to the extent to which a niutrient is absorbed in the GI tract?

    a)bioavailability

    b)absorbability

    c)accessability
    A
  8. Baby Ann, age 9mos, is vomiting and has diarrhea. This can be life threatening because of the losses of water and what two minerals?

    a)sodium, magnesium

    b)magnesium, potassium

    c)sodium, chloride
    C
  9. Major minerals utilize the lymphatic system prior to being circulated in the blood.
    T/F
    True
  10. People with cystic fibrosis have significant respiratory difficulties and may have profound digestive complications because a genetic defect results in the inability to pump which ions across cell membranes?

    a)sodium

    b)potassium

    c)chloride
    C
  11. A decline in bone is a normal part of aging T/F
    True
  12. Jim is dehydrated and has purchased several "sports drinks" to have available along his training route. Why did the team dietitian reccomend that Jim purchase a brand that contained glucose instead of HFCS?

    a)glucose is more easily absorbed than fructose

    b)glucose must be present for sodium to be absorbed

    c)glucose provides more kcal than HFCS
    B
  13. Antidiuretic hormone decreases water excretion by the kidneys and causes blood vessels to constrict T/F?
    True
  14. What does having osteoporosis increase the risk of?

    a)kidney stones

    b)bone fractures

    c)atherosclerosis
    B
  15. What lifestyle factors can be modified to reduce the risk of developing osteoporosis?

    a)activity level and diet

    b)medications and diet

    c)alcohol consumption and smoking
    A
  16. What food has been showin in some studies to help maintain bone health after menopause?

    a)tea

    b)veggies

    c)soy

    d)fish
    C
  17. By definition, a major or macromineral is one that is required in amounts greater than how much each day?

    a)10,000mg

    b)1000mg

    c)100mg

    d)10mg
    C
  18. What regulates blood level of magnesium?

    a)bone, hormones

    b)small intestine, kidneys

    c)large intestine, liver
    B
  19. How many people do researchers estimate suffer from osteoporosis?

    a)<2million

    b)<6million

    c)>10 million
    C
  20. Menopause negatively affects bone mass T/F
    True
  21. During periods of calcium defiency, the body maintains healthy blood calcium levels by stimuating osteoblasts T/F
    False
  22. What is the process of converting soft, rubbery fetal bones into hard, mineralized bone called?

    a)calcification

    b)ossification

    c)mineralization
    B
  23. Bone mass increases until roughly what age?

    a)14

    B) 20

    c)30
    C
  24. What is the crystal -like structural molecule in bones and teeth that contains calcium called?

    a)osteoblasts

    b)osteoclasts

    c)hydroxapatitie

    d)calcitonin
    C
  25. If you make spaghetti with home made tomat sauce for a family of four and add only 1tsp of salt when preparing both items, how many mg of sodium would each person consume from both the items?

    a)250

    b)500

    c)700
    B
  26. One study suggested that consuming even one additional serving of low fat dairy each day is accociated with a40-50% reduction of risk of which disease?

    a)breast cancer

    b) prostate cancer

    c)heart disease

    d) colon cancer
    D
  27. Whta food group would provide a significant source of calcium\?

    a)dairy

    b)meat

    c)fat
    A
  28. Which of the following exercises is likely to be best for strengthening bones?

    a)rowing

    b)walking

    c)swimming
    B
  29. A typical 70kg man has 42 liters of water in his body. If 1/3 of his water is found outside of his cells, how many liters of extracellular fluid could he have?

    a)14

    b)21

    c)28
    A

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