Eatright Prep Exam 5 Questions and Answers 100% Pass

Eatright Prep Exam 5 Questions and Answers 100% Pass Q. Which of the following nutrients is essential for cell division during pregnancy and, if deficient, can lead to development of neural tube defects in newborn? Thiamin Niacin Riboflavin Folate - Answer- The correct answer is D. Folate is essential for DNA synthesis and cell division. Deficiency can lead to defective development of neural tube and other organs. Q. Which of the following does not have an effect on bioelectrical impedance analysis (BIA) measurement of body composition? Gas in the intestinal tract Hydration status Body fatness Use of alcohol - Answer- The correct answer is A. Gas in the intestinal tract affects underwater weighing but has no effect on BIA. BIA depends on total body water, so only factors that affect hydration status can affect the results of BIA assessment. Q. Which research design is used in sensory evaluation? Paired comparison Observational Duo-trio Staircase procedure - Answer- The correct answer is B. Paired comparison, duo-trio, and staircase procedure are all types of sensory evaluation. In a paired-comparison test, judges are asked to determine which sample has the target sensory attribute. In a duo-trio test, a judge is given three samples wherein one is an identified reference sample and the others are unknown to the judge, who is asked determine which two are identical. In the staircase procedure, one sample with an easily identifiable stimulus is given, and the judge is given less and less concentrated versions until they can't detect it, and then given more and more concentrated until they can (the purpose of this design is for determining thresholds of perceptibility). Q. What kind of variable represents the outcome of a study? Dependent Independent Cohort Confounding - Answer- The correct answer is A. A dependent variable is the outcome variable of interest. The independent variable is thought to influence the dependent variable and is manipulated in the experimental design. Confounding variables may influence the outcome and need to be controlled. A cohort is a group within the study but it is not a variable in research design. Q. Which of the following protein is NOT softened using the moist heat method of cooking? Elastin Reticulin Albumen Collagen - Answer- The correct answer is A. Elastin is yellow connective tissue that is elastic in nature but does not soften with cooking. Reticulin is connective tissue fibrin with very small fibers that surround muscle cells. Albumen in the egg white. Q. Ingredients in a food product are listed on the label in order according to their _____. volume weight similarity commonality - Answer- The correct answer is B. Food product ingredients are listed on the label in descending order of their weight. Q. All of the following are true of solanine except _____. it is toxic. it is developed when foods are exposed to light. it is an alkaloid substance. if it is detected, the food should be discarded. - Answer- The correct answer is D. Solanine develops when foods such as potatoes are exposed to light and grows new green tubers or sprouts. A potato doesn't need to be discarded if solanine is detected. The green areas can be peeled off and the remaining parts are still edible. Solanine is unlikely to be found in large concentrations in the potato itself when compared to the toxic levels present in the green tuber or sprouts (caused by light). Q. The energy needs of an infant from birth to 12 months of age depend on the following factors except _____. growth rate length weight temperature and climate - Answer- The correct answer is B. The current energy intake recommendation of 98 kcal/kg to 108 kcal/kg body weight for infants is based on weight, growth rate, sleep/wake cycle, temperature and climate, physical activity, metabolic response to food, and health status and recovery from illness. Length is not a factor that affects energy needs. Q. What is the hormone that lowers blood glucose? Glucocorticoids Glucagon Somatostatin Insulin - Answer- The correct answer is D.