Exam%3% Practice%Exam%(Un i ts%5%and%6)%Review% of%attempt%1% 1 Marks: 1 Vitamin A is essential for mucous membrane integrity? Answer: True False Correct Marks for this submission: 1/1. Question 2 Marks: 1 In rabbits, a very dramatic sign of vitamin A deficiency is: Choose one answer. a. head pressing b. copious lacrimationd c. birthing of hydrocephalic kits d. none of the answers are correct Incorrect Marks for this submission: 0/1. Question 3 Marks: 1 Complete hydrogenation of an unsaturated fatty acid will result in a saturated fatty acid. Answer: True False Correct Marks for this submission: 1/1. Question 4 Marks: 1 Consumption of fish or fish oil products is the only practical way of increasing the human intake of linolenic acid. Answer: True False Correct Marks for this submission: 1/1. Question 5 Marks: 1 Xerophthalmia develops in two stages. The first, characterized by a hard cornea, is called: Choose one answer. a. xerosis b. keratinization c. keratomalaciad. keratinization and keratomalacia Correct Marks for this submission: 1/1. Question 6 Marks: 1 A beef calf secretes lipase into its saliva: Answer: True False Correct Marks for this submission: 1/1. Question 7 Marks: 1 The generally accepted upper level of safe vitamin E intake by humans is: Choose one answer. a. 30 I.U. b. 800 - 1000 I.U. c. 1500 - 2000 I.U. d. 300 I. U. Correct Marks for this submission: 1/1. Question 8 Marks: 1 Inborn errors of metabolism caused by such diseases as Down Syndrome and Autism can increase the need for certain vitamins in humans. Answer: True False Correct Marks for this submission: 1/1. Question 9 Marks: 1 In adipocytes, newly imported triglycerides form small lipid droplets in which portion of the cell? Choose one answer. a. interior cytoplasm b. peripheral cytoplasm c. nucleus d. on the exterior cell membrane surface Incorrect Marks for this submission: 0/1. Question 10 Marks: 1 Vitamin A is distributed throughout the body bound to: Choose one answer.a. serum albumin b. retinol binding protein c. fatty acid carrier protein d. hemoglobin e. insulin Correct Marks for this submission: 1/1. Question 11 Marks: 1 Polyunsaturated fatty acids have only one carbon to carbon double bond. Answer: True False Correct Marks for this submission: 1/1. Question 12 Marks: 1 In general, for healthy humans and companion animals the following is the best course of action in regards to daily vitamin supplementation: Choose one answer. a. follow the RDA's or estimated daily requirements unless unusual medical or environmental issues are in play b. supplement with 200% the estimated daily requirement c. follow the recommendations of a vitamin vendor d. do not consider taking any vitamin supplement, regardless of diet type Correct Marks for this submission: 1/1. Question 13 Marks: 1 The major gastrointestinal peptide mediator of the Ileal Brake is: Choose one answer. a. neuropeptide Y b. pancreatic polypeptide c. vasoactive intestinal peptide d. peptide YY Correct Marks for this submission: 1/1. Question 14 Marks: 1Fat soluble vitamins are found in fats and oils and are insoluble in water. Answer: True False Correct Marks for this submission: 1/1. Question 15 Marks: 1 Epinephrine activates hormone sensitive lipase in adipose cells? Answer: True False Correct Marks for this submission: 1/1. Question 16 Marks: 1 Chronic intake of excess vitamin A in humans can result in bone demineralization. Answer: True False Correct Marks for this submission: 1/1. Question 17 Marks: 1 How does the enterocyte prevent fatty acids in the blood stream from exerting soap or detergent-like effects on enterocyte membranes? Choose one answer. a. no free fatty exist inside of the enterocyte b. the enterocyte converts them to proteins c. the enterocyte synthesizes a fatty acid carrier protein which envelopes the fatty acid d. all fatty acids are oxidized in the enterocyte e. choices a and b Incorrect Marks for this submission: 0/1. Question 18 Marks: 1 In humans, most vitamin deficiencies are observed in a setting of general malnutrition: Answer: True False Correct Marks for this submission: 1/1. Question 19 Marks: 1 7-dehydrocholesterol is converted to pro-vitamin D3 in the _________: Choose one answer. a. heartb. kidney c. skin d. liver Incorrect Marks for this submission: 0/1. Question 20 Marks: 1 Ca+ is not involved in the blood clotting process: Answer: True False Correct Marks for this submission: 1/1. Question 21 Marks: 1 The fatty acid synthetase complex is down-regulated via a detergent - like effect exerted by an accumulation of which metabolites in the cytoplasm? Choose one answer. a. glucose polymers b. acetate and butyrate c. free fatty acids d. small peptides Correct Marks for this submission: 1/1. Question 22 Marks: 1 The efficiency of carotene conversion to vitamin A in ruminants is: Choose one answer. a. 40%-50% b. 20%-30% c. 5%-10% d. 80%-90% Incorrect Marks for this submission: 0/1. Question 23 Marks: 1 Micelles enter the enterocyte via: Choose one answer. a. active transportb. facultative transport c. active and facultative transport d. passive diffusion Correct Marks for this submission: 1/1. Question 24 Marks: 1 Vitamin D has hormone-like properties: Answer: True False Correct Marks for this submission: 1/1. Question 25 Marks: 1 A decrease in lipoprotein size corresponds to an ____ in protein content. Choose one answer. a. decrease b. increase c. no change d. no Correct Marks for this submission: 1/1. Question 26 Marks: 1 Which gastrointestinal hormone is responsible for gall bladder contraction when fat enters the duodenum? Choose one answer. a. secretin b. gastrin c. cholecystokinin d. somatotrophin Correct Marks for this submission: 1/1. Question 27 Marks: 1 The type of fatty acid that is often refered to as a chair conformation is a: Choose one answer. a. trans-fatty acidb. cis-fatty acid c. both a and b d. neither a nor b Correct Marks for this submission: 1/1. Question 28 Marks: 1 Sun-cured hay is not a good source of vitamin D for ruminants: Answer: True False Correct Marks for this submission: 1/1. Question 29 Marks: 1 Steatorrhea is