e radicals. D:vitamin D 答案: 【beta-carote
Chapter 5 Vitamins： Nutrients that Multitask Quiz 5
1、 问题: Which of the following criteria qualifies a compound as a vitamin?
选项：
A:The compound is necessary for health， but the body is unable to synthesize enough of the compound to maintain health
B:The compound prevents chronic disease and cancer.
C:The compound is best absorbed if taken in supplement form.
D:The body is unable to synthesize the compound.
答案: 【The compound is necessary for health， but the body is unable to synthesize enough of the compound to maintain health】
2、 问题:Which of the following is true about the intake of vitamins?
选项：
A:All vitamins consumed in excess are excreted.
B:Supplemental vitamins are better than those from food.
C:Occasional lapses in vitamin intake should cause no harm.
D:It is hard to get all the vitamins we need from food.
答案: 【Occasional lapses in vitamin intake should cause no harm.】
3、 问题: Water-soluble and fat-soluble vitamins differ in which way?
选项：
A:Water-soluble vitamins are best absorbed in the presence of dietary fat.
B:Fat-soluble vitamins have much less potential for toxicity.
C:Water-soluble are less likely to be toxic.
D:Water-soluble vitamins are stored， whereas fat-soluble vitamins are excreted readily.
4、 问题:Which of the following is most likely to result in vitamin toxicity if consumed daily over a long period of time?
选项：
A:Vitamin A supplements
B:B-vitamin complex
C:Fortified breakfast cereals
D:Spinach， kale， and other greens
答案: 【Vitamin A supplements】
5、 问题: Which of the following is not true of B vitamins?
选项：
A:They are water soluble.
B:They serve as coenzymes.
C:They can be lost during food processing and preparation.
D:They are stored in adipose tissue.
答案: 【They are stored in adipose tissue.】
6、 问题:Why is taking excess amounts of fat-soluble vitamins more likely to cause toxicity than taking excesses of water-soluble vitamins?
选项：
A:In general， excesses of fat-soluble vitamins cannot be excreted as easily as water-soluble vitamins.
B:In general， water-soluble vitamins are more likely to be stored in the body than fat-soluble vitamins.
C:The body has higher requirements for water-soluble vitamins.
D:The body has higher requirements for fat-soluble vitamins.
答案: 【In general， excesses of fat-soluble vitamins cannot be excreted as easily as water-soluble vitamins.】
7、 问题:Which of the following statements is true?
选项：
A:Retinol is found only in plant foods.
B:Certain carotenoids are precursors for preformed vitamin A.
C:Vitamin A is necessary for normal blood clotting.
D:In children， vitamin A deficiency is called rickets.
答案: 【Certain carotenoids are precursors for preformed vitamin A.】
8、 问题:Deep yellow， dark green， and orange fruits and vegetables are rich sources of
选项：
A:beta-carotene.
B:collagen.
C:free radicals.
D:vitamin D
答案: 【beta-carotene.】
9、 问题:Which of the following foods is a naturally good source of vitamin D?
选项：
A:Fatty fish and fish oils
B:Dark orange and yellow vegetables
C:Whole-grain breads and cereals
D:Red meat
答案: 【Fatty fish and fish oils】
10、 问题:The body needs folate to produce a coenzyme that
选项：
A:metabolizes vitamin E.
B:transmits nervous impulses.
C:helps form DNA.
D:protects fatty acids from oxidation.
答案: 【helps form DNA.】
Chapter 6 Water Quiz 6 修正版
1、 问题: Water constitutes ______ percent of body weight.
选项：
A: 10-20
B:25-45
C:50-70
D:75-95
答案: 【50-70】
2、 问题:The amount of water in each body compartment mainly is controlled by：
选项：
A:oxygen concentration.
B:glucose concentration.
C:the presence of fatty acids.
D:ion concentration.
答案: 【ion concentration.】
3、 问题:Adult women need how much total water intake per day?
选项：
A:1.5 liters (6 cups)
B:2 liters (8.5 cups)
C:2.7 liters (11 cups)
D:3 liters (13 cups)
答案: 【2.7 liters (11 cups)】
4、 问题:Which of the following is not true about the regulation of fluid in the body?
选项：
A:Thirst is a reliable indicator of how much water should be consumed to replenish body fluids during illness.
B:Antidiuretic hormone is released to force the kidney to conserve water.
C:There is a limit to how concentrated the kidney can make the urine.
D:Even though the kidney can effectively conserve water， insensible water losses must be replenished.
答案: 【Thirst is a reliable indicator of how much water should be consumed to replenish body fluids during illness.】
5、 问题:Water regulates body temperature through heat loss via
选项：
A:conduction.
B:radiation.
C:respiration.
D:evaporation.
答案: 【evaporation.】
6、 问题:Water is the universal solvent to dissolve substances in the body
选项：
A:正确
B:错误
答案: 【正确】
7、 问题:Typical examples of water’s role as a lubricant are lubricating fluids in knees and other joints， and tears in eyes.
选项：
A:正确
B:错误
答案: 【正确】
8、 问题:Dehyhration is bad for the body. But overhydration is ok for the body
选项：
A:正确
B:错误
答案: 【错误】
9、 问题:Thirst is a good indicator of hydration status.
选项：
A:正确
B:错误
答案: 【错误】
10、 问题:Water intoxication occurs with high intake of water.
选项：
A:正确
B:错误
答案: 【正确】
Chapter 7 Functional Food Quiz 7
1、 问题:( ) can improve lipid metabolism and protect vascular structure and vascular function.
选项：
A:Vitamin A
B:Vitamin B
C:Vitamin C
D:Vitamin D
答案: 【Vitamin B】
2、 问题: Classification of functional foods and nutraceuticals are properly based on ( ).
选项：
A:Sources
B:Mechanism of action
C:Chemical nature
D:All of the above
答案: 【All of the above】
3、 问题:What are the functions of DHA?
选项：
A: Cardiovascular health
B:Brain and nervous system
C:Foetus development
D:Important nutrient in mother’s milk
答案: 【Important nutrient in mother’s milk】
4、 问题:Which of the following is not the function of phytochemicals?
选项：
A:Defense compounds
B:Bioactive ingredients
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ne.】 9、 问题:Which of the following foods