NUTR 300 KEY Exam 2 practice questions 1) Which of the following foods are rich sources of saturated fatty acids? A) cashew nuts B) olive and canola oils C) canola and corn oils D) butter and lard 2) Diets high in trans fatty acids are associated with: A) decreased cancer risk. B) increased blood cholesterol levels. C) osteoporosis. D) decreased blood glucose levels. 3) Which of the following food items would contain the highest amount of dietary cholesterol? A) steamed broccoli B) olive oil C) avocado D) butter 4) What is the leading cause of death in the United States? A) cancer B) heart disease C) diabetes D) infection 5) The process of combining two incomplete proteins to make a complete protein is called: A) the protein combining method. B) amino acid sequencing method. C) mutual supplementation. D) protein. 6) A complete protein: A) contains all 20 amino acids. B) contains all 9 essential amino acids in sufficient quantities to meet needs. C) has not been denatured. D) is composed of only di- and tripeptides. 7) Which of the following statements is FALSE? A) The healthy body?s primary energy source is carbohydrate and fat. B) The body stores excess protein primarily for energy reserves. C) To utilize protein for energy, the amine group is removed. D) Eating sufficient carbohydrate and fat will spare body protein. 8) Vegetarian diets are associated with increased consumption of ________. A) carcinogens B) antioxidants C) prions D) vitamins B12 and D 9) In the absence of oxygen, glucose is catabolized to: A) glycogen. B) phosphoenolpyruvate. C) pyruvate and then lactic acid. D) Glucose does not undergo catabolism. 10) Which of the following cells rely on anaerobic metabolism for ATP production? A) muscle cells B) epidermis C) red blood cells D) fat cells 11) 11) All of the following are major classes of dietary lipids EXCEPT: A glycogens. B triglycerides. C sterols. D phospholipids. 12) What is the primary form of lipid in the diet? A sterols B triglycerides C phospholipids D glycerols 13) Which of the following is a rich source of polyunsaturated fatty acids? A corn oil B coconut oil C beef fat D butter Match the following items. C 14) Triglyceride A) Fatty acids that contain two or more double bonds along their carbon chain F 15) Saturated fatty acids B) Consist of glycerol backbone, two fatty acids, and a phosphate group G 16) Monounsaturated fatty acids C) Molecule containing glycerol and three fatty acids A 17) Polyunsaturated fatty acids D) By-product of hydrogenating unsaturated fatty acids D 18) Trans fatty acids E) Molecule after two fatty acids have been removed from a triglyceride B 19) Phospholipids F) Fatty acids that are lacking any double bonds along their carbon chain H 20) Cholesterol G) Fatty acids that contain one double bond along their carbon chain E 21) Monglyceride H) Multiple-carbon ring lipid structure synthesized by the liver Also be sure to study lipoproteins! ? Which ones are triglyceride-rich? Which lipoprotein carries the most cholesterol? Which lipoprotein is characteristic of exogenous lipid transport? of endogeous lpid transport? of reverse cholesterol transport? 22) The removal of the amine group from an amino acid is called ________. A proteolysis B beta oxidation C glycolysis D deamination There are no true false questions on the exam, but here are some to help you study 23) The human body synthesizes cholesterol. Answer True False Page Ref: 185 24) Fat is the most energy dense of all the macronutrients. Answer True False Page Ref: 190 25) Saturated fats are typically liquid at room temperature. Answer True False Page Ref: 178 26) During times of weight gain, fat is primarily stored in the liver and muscle cells. Answer True False Page Ref: 191-192 27) Across racial and ethnic groups, heart disease is the leading cause of death in the United States. Answer True False Page Ref: 203 28) What element makes protein different from carbohydrate and fat? A carbon B hydrogen C oxygen D nitrogen 29) The type of vegetarian who eats vegetables, grains, fruits, milk, and eggs, but excludes all other types of animal protein, is called a: A vegan. B lacto-vegetarian. C lacto-ovo vegetarian. D pesco-vegetarian. 30) Which of the following supplements would you recommend a vegan add to his/her diet? A protein B fiber C vitamin B12 D vitamin C 31) Amino acids that can be synthesized by the body are termed essential. Answer: True False Page Ref: 223 32) Denaturation results in the loss of the protein's function. Answer: True False Page Ref: 228 33) Complete proteins are found primarily in vegetable sources. Answer: True False Page Ref: 230 34) Hydrochloric acid converts the inactive pepsinogen into its active form pepsin. Answer: True False Page Ref: 231 35) Protein digestion begins in the mouth by the enzyme amylase. Answer: True False Page Ref: 232 36) In properly nourished individuals, protein contributes minimally to energy needs. Answer: True False Page Ref: 237 37) Athletes cannot get adequate amounts of protein from the diet alone. Answer: True False Page Ref: 238 38) Strength athletes have increased protein needs as compared with sedentary individuals. Answer: True False Page Ref: 238 39) Endurance athletes have increased protein needs as compared with sedentary individuals. Answer: True False Page Ref: 238 40) Most Americans consume sufficient or excess amounts of dietary protein. Answer: True False Page Ref: 240 41) Building muscle is primarily an anabolic process. Answer: True False Page Ref: 263 42) A majority of the body's ATP is produced in the mitochondrion. Answer: True False Page Ref: 265 43) Glycogen stores are the body's most abundant energy source. Answer: True False Page Ref: 286 44) Amino acids are stored in the body for energy. Answer: True False Page Ref: 286-287 45) Muscle glycogen cannot be used to raise blood glucose. Answer: True False Matching D 46) ATP Page Ref: 585 A) Molecule derived from glycolysis and ?-oxidation to enter TCA cycle B 47) Lactic acid Page Ref: 588 B) End product of metabolism produced when there is a limited supply of oxygen C 48) Pyruvate Page Ref: 586 C) Primary end product of glycolysis E 49) Glycolysis Page Ref: 586 D) Energy currency of the cell A 50) Acetyl CoA E) Breakdown of glucose; yields 2 ATP molecules 51) All of the following are major classes of dietary lipids except: Glycogens Triglycerides Sterols Phospholipids 52) A triglyceride includes: 1 glycerol and 3 fatty acids 3 glycerols and 1 fatty acid 3 phospholids and 1 glycerol 3 glycerols and 1 phospholipid 53) Triglycerides can be classified by which of the following characteristics? Length of carbon chain of fatty acids Degree of saturation of fatty acids Shape of fatty acids All of the above 54) Which type of essential fatty acids are found in fish or fish oils? Omega-6 Omega-3 Saturated Monounsaturated 55) Which hormone signals the gallbladder to contract? Serotonin Insulin Cholecystokinin (CCK) Glucagon 56) What immune cell plays a central role in atherosclerosis? A) Neutrophils B) B cells C) Macrophages D) Memory cells 57) Which lipoproteins contribute to atherosclerosis by becoming oxidized or modified and taken up by macrophages in lesions? HDL VLDL IDL LDL Chylomicrons 58) The process of making large molecules from smaller ones is termed: catabolism anabolism metabolism hydrolysis 59) Which cellular organelle is the primary site of chemical energy production? ribosome cytoplasm mitochondria endoplasmic reticulum golgi apparatus 60) The catabolism of fat is called: Glycolysis TCA cycle Lipolysis Lipogenesis 61) The primary anabolic hormone is: glucagon insulin cortisol epinephrine 62) Pellagra is the deficiency disease associated with: folate niacin riboflavin biotin 63) Which of the following conditions have niacin supplements been used to treat? high cholesterol levels baldness hypertension diabetes Which food has the highest amounts of B-vitamins? polished rice white bread rolls cheese whole wheat bread PLEASE NOTE: There will be NO questions about alcohol on the exam. Thiamin Beriberi Wenicke-Korsakoff syndrome Thiaminase Riboflavin Niacin Nicotinic acid Nicotinamide Pellagra Biotin Avidin Pantothenic acid PAGE 1
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