Food & Nutrition Exam 2 Correct 100%

Which of the following is NOT a function of fat? a. provides a concentrated energy source in foods b. provides most of the energy to fuel muscular work c. carries fat-soluble vitamins A, D, E, K d. provide most of the energy to fuel brain cells e. all of the above are functions of dietary fat - ANSWER Provide most of the energy to fuel brain cells The most common type of fat found in both food and in the body is/are a. sterols b. triglycerides c. cholesterol d. phospholipids e. trans fatty acids - ANSWER Triglycerides Cholesterol can be found in all of the following EXCEPT: a. meat b. eggs c. peanuts d. milk e. none of the above...all contain some cholesterol - ANSWER Peanuts Dietary fat provides the essential fatty acids, ___ and ___, needed for proper growth and development. a. linoleic, arachadonic b. myristic, linoleic c. palmitic, arachadonic d. linoleic, linolenic e. saturated, monounsaturated - ANSWER Linoleic, linolenic What chemical structure is the key difference between saturated and unsaturated fats? a. double bond b. triple bond c. oxygen bond d. carbon e. nitrogen - ANSWER Double bond ____________ is the synthetic process that turns polyunsaturated fatty acids into saturated fatty acids, also resulting in the formation of trans fatty acids. a. Emulsification b. Hydrogenation c. Lipogenesis d. Digestion e. Transgeneration - ANSWER Hydrogenation It is recommended that total fat consumption should be ___ or less of total kcalories, and saturated fat consumption should be ___ or less of total kcalories. a. 15-25% ....5% b. 20-35%....10% c. 25-40%....15% d. 30-45%....20% e. 35-50%....25% - ANSWER 20-35%....10% Which of the following is true of phospholipids? a. they are constituents of cell membranes b. they are emulsifying agents c. they contain nitrogen and phosphorous d. a and b e. a, b and c - ANSWER a,b and c You have gone to the doctor recently, and she says you have high blood cholesterol. You have high LDL and low HDL. Which of the following may be effective in improving your blood lipid profile? a. eat Quaker oatmeal, a good source of soluble fiber, for breakfast every morning. b. consume a variety of antioxidant containing (vitamin C, vitamin E) foods. c. include more of both monounsaturated and polyunsaturated fats, rather than saturated fats, in your diet. d. all of the above would likely contribute to an improvement in your blood lipid profile. - ANSWER All of the above would likely contribute to an improvement in your blood lipid profile Bile helps to _____________ lipids; is made from _____________; and is trapped by __________ for excretion, which helps to lower cholesterol. a. digest; fatty acids; insoluble fiber b. absorb; phospholipids; vitamin C c. emulsify; cholesterol; soluble fiber d. synthesize; glycerol; chylomicrons - ANSWER Emulsify; cholesterol; soluble fiber In what form are (large) lipids carried in the bloodstream? a. Free triglycerides b. Lipoproteins c. Omega-3 fatty acids d. Free fatty acids e. Sterols - ANSWER Lipoproteins Which of the following is FALSE in regard to saturated fats? a. they have zero double bonds b. they are solid at room temperature c. they are usually from plant origin d. food sources include butter, lard, palm oil - ANSWER They are usually from plant origin Lecithin is often (falsely) marketed as a "fat burner". Lecithin is a(n) a. sterol b. lipoprotein c. triglyceride d. chylomicron e. phospholipid - ANSWER Phospholipid Sex hormones, testosterone and estrogen, are a. saturated fats b. triglycerides c. phospholipids