2012_284tt-25PracticeQuestions.pdf

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Department
Nutritional Science
Course
NFS284H1
Professor
Debbie Gurfinkel
Semester
Winter

Description
NFS 284 TERM TEST Practice Questions. Select the best answer. 1) Which statement best describes positive energy balance? A) Positive energy balance refers to a situation in which an individual's energy intake exceeds the number of calories expended to maintain body function and physical activity. The individual gains weight. B) Positive energy balance refers to a situation in which an individual's energy intake is less than number of calories expended to maintain body function and physical activity. The individual gains weight. C) Positive energy balance refers to a situation in which an individual's energy intake is less than the number of calories expended to maintain body function and physical activity. The individual loses weight. D) Positive energy balance refers to a situation in which an individual's energy intake is equal to the number of calories expended to maintain body function and physical activity. A constant weight is maintained. 2) Which is a characteristic of a villus? A) It contains a blood vessel which can transport alpha-linolenic acid from the small intestine to the liver. B) It contains a layer of chief cells that secrete digestive enzymes. C) It contains a lacteal which can transport vitamin A from the enterocyte to the body. D) It contains a layer of cells that digest carbohydrates by secreting amylase. 3) Which statement best describes the functional significance of the villi and microvilli? A) Compared to a smooth tubular organ, the villi and microvilli (or brush border) increase the surface area of the small intestine, making absorption more efficient. B) Compared to a smooth tubular organ, the villi and microvilli (or brush border) decrease the surface area of the small intestine, making elimination more efficient. C) Compared to a smooth tubular organ, the villi (or brush border) and microvilli increase the surface area of the small intestine, making digestion less efficient. D) Compared to a smooth tubular organ, the villi (or brush border) and microvilli increase the surface area of the small intestine, making elimination more efficient. 4) Consider the following experiment. The dietary intake of 90,000 individuals was recorded. The population's health was followed for 10 years. The dietary information was analyzed for the use of calcium supplements and health records evaluated fo the incidence of colon cancer. RR for colon cancer Users of calcium supplements 0.90* Non users of calcium supplements 1.00* *The difference between relative risks is statistically significant. A) This is an intervention trial and indicates that increased calcium supplement use is associated with a decreased risk of colon cancer B)This is an observational study and indicates that increased calcium supplement use is associated with a decreased risk of colon cancer. C) This is an observational study and indicates that increased calcium supplement use has no effect on the risk of colon cancer. D) This is an observational study and indicates that increased calcium supplement use is associated with an increased risk of colon cancer 5) Homer consumes 35% kcal from fat, while Moe consumes 31% kcal from fat. Which person consumes more fat in total grams? A) It is not possible to determine wich person consumes more fat (in total grams) because we do not know the total weight of food consumed by each person. B) Homer consumes more fat (in total grams) than Moe. C) It is not possible to determine which person consumes more fat (in total grams) because we do not know the total kcal consumed by each person. D) Moe consumes more fat (in total grams) than Homer. 6) Which term best describes a compound that stimulates the growth of beneficial microflora in the large intestine? A) Dietary fibre B) Probiotic C) Acid D) Prebiotic 7) Which characteristic of the mother would you expect to be associated with an increase in exclusive breastfeeding? A) Single parenthood B) Use of alcohol C) Use of cigarettes D) High level of education 8) A scientific study recorded the dietary intake of 50,000 men and tracked the health of these men for 10 years. The study concluded that there is an inverse association between the consumption of tomatoes and the incidence of prostate cancer. Which statement best describes the study and its conclusion? A) This is an intervention trial which demonstrates that consuming tomatoes may increase the risk of prostate cancer. B)This is an intervention trial which demonstrates that consuming tomatoes reduces the risk of prostate cancer. C) This is an observational study which demonstrates that consuming tomatoes may reduce the risk of prostate cancer. D) This is an observational study which demonstrates that consuming tomatoes causes a reduction in the risk of prostate cancer. 9) Which statement best describes the role of mucus? A) Protection of cells of the digestive tract from the action of the digestive enzymes. B) Secretion of bicarbonate to neutralize chyme. C) Secretion of hormones that increase transit time. D) Secretion of hormones that stimulate the release of bile. 10) Which statement best describes a diet that lacks kcalorie control? A) A diet in which neither milk nor milk alternatives is consumed. B) A diet in which the same meals are served every day. C) A diet low in iron and calcium. D) A diet in which large portions of deep-fried chicken are regularly consumed. 11) James kept a 7 day food record and found that his servings of meat and meat alternatives over that time period were, in total, 10 Canada Food Guide servings of low-fat beef products, 8 Canada Food Guide servings of low-fat poultry and 3 Canada Food Guide servings of peanut butter. James is 19 years old and Canada's Food Guide recommends 3 servings of meat and meat alternatives/day for men his age. Which statement best describes his food selections and how they meet the recommendations of Canada's Food Guide for this food group? A) James is consuming too few servings in the Meat and Meat alternatives Food Group. He should add additional servings of fish, beans, lentils and tofu to meet the recommendations of Canada's Food Guide. B)James is consuming the right number of servings in the Meat and Meat alternatives Food Group but he should replace some of his beef and poultry servings with servings of fish, beans, lentils and tofu to meet the recommendations of Canada's Food Guide. C) James is consuming too many servings in the Meat and Meat alternatives Food Group. He should reduce the total number of servings and replace some of his beef and poultry servings with servings of fish, beans, lentils and tofu to meet the recommendations of Canada's Food Guide.. D) James is consuming the right number of servings in the Meat and Meat alternatives Food Group but he should replace some of his beef and poultry servings with servings of fish to meet the recommendations of Canada's Food Guide.. 12) Which statement does NOT appear in Canada's Food Guide? A) Have meat alternatives such as beans, lentils and tofu often. B) Eat at least one green and one orange vegetable daily. C) Have vegetables and fruit more often than juice. D) Make all your grain products whole grain products. 13) Consider the nu
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