Marks: 1 Pectin is found in large quantities within: Choose one answer. a. milk b. seeds c. the cell wall of fruits and fleshy roots d. beef Correct Marks for this submission: 1/1. Question 2 Marks: 1 Degradation of a disaccharide or polysaccharide involves a _________ reaction at the site of the glycosidic bond. Choose one answer. a. hydrolysis b. desaturation c. deamination d. condensation Correct Marks for this submission: 1/1. Question 3 Marks: 1 Peptidases embedded within the small intestinal microvilli membranes are considered constituent enzymes. Answer: True False Correct Marks for this submission: 1/1. Question 4 Marks: 1 Fermentation is the process by which glucose is degraded in ____ conditions Choose one answer. a. aerobic b. anaerobic c. partially aerobic d. partially anaerobic Correct Marks for this submission: 1/1. Question 5 Marks: 1 The major extracellular anion is: Choose one answer. a. Cl- b. SO4-2 c. Na+ d. PO4-4 Correct Marks for this submission: 1/1.Question 6 Marks: 1 What is an example of a non-digestible carbohydrate that can cause gas in the gastrointestinal tract of humans when fermented by gut microbes? Choose one answer. a. sucrose b. glucose c. galactose d. stachyose Incorrect Marks for this submission: 0/1. Question 7 Marks: 1 The daily water intake of a lactating dairy cow usually ranges between ________ liters per day: Choose one answer. a. 23 - 66 b. 200 - 300 c. 11 - 19 d. 38 - 110 Incorrect Marks for this submission: 0/1. Question 8 Marks: 1 What is the relationship between nutrient fermentability and ruminal VFA concentration? Choose one answer. a. negative correlation b. positive correlation c. no correlation d. none of the answers are correct Correct Marks for this submission: 1/1. Question 9 Marks: 1 The daily water intake of chickens usually ranges between _______ liters per day: Choose one answer. a. 38 - 110 b. 0.2 - 0.4 c. 3 - 5 d. 1.1 - 3.1 Incorrect Marks for this submission: 0/1. Question 10 Marks: 1 A large percentage of amino acids are recycled in the body for the synthesis of new proteins because of protein turnover. Answer: True FalseCorrect Marks for this submission: 1/1. Question 11 Marks: 1 Which is the toxic metabolite that the urea cycle is used to remove? Choose one answer. a. glucose b. urea c. uric acid d. ammonia Correct Marks for this submission: 1/1. Question 12 Marks: 1 Which of the following is a non essential amino acid? Choose one answer. a. serine b. aspartate c. valine d. serine and aspartate Correct Marks for this submission: 1/1. Question 13 Marks: 1 Which of the following amino acids is a favored energy source for enterocytes? Choose one answer. a. methionine b. glutamine c. alanine d. isoleucine Correct Marks for this submission: 1/1. Question 14 Marks: 1 In a fasted sheep, the major gluconeogenic precursors would be: Choose one answer. a. propionate and amino acids b. glucose and acetate c. glycerol and amino acids d. propionate and lactate Correct Marks for this submission: 1/1. Question 15 Marks: 1 Besides the brain, which other organ(s), require glucose for their major source of energy? Choose one answer.a. red blood cells b. muscle and liver c. heart d. all the answers are correct Correct Marks for this submission: 1/1. Question 16 Marks: 1 Cholecystokinin is involved in hormonal regulation of the secretion of trypsin. Answer: True False Correct Marks for this submission: 1/1. Question 17 Marks: 1 Which of the following hormones is released by the kidneys in response to low blood pressure? Choose one answer. a. insulin b. glucagon c. secretin d. renin Incorrect Marks for this submission: 0/1. Question 18 Marks: 1 A predominant circulating sugar in the hemolymph of insects is: Choose one answer. a. dextrose b. trehalose c. galactose d. lactose Correct Marks for this submission: 1/1. Question 19 Marks: 1 Which hormone initiates the activation of the hormone angiotensinogen to angiotensin? Choose one answer. a. renin b. glucagon c. pancreatic polypeptide d. aldosterone Incorrect Marks for this submission: 0/1. Question 20 Marks: 1 The urea cycle ____ require(s) ATP.Choose one answer. a. does b. does not c. conditionally d. none of the above Correct Marks for this submission: 1/1. Question 21 Marks: 1 In the fed sheep, which are the major gluconeogenic precursors? Choose one answer. a. acetate, propionate, butyrate b. glucose and glycogen c. propionate, lactate and some amino acids d. glycerol and lactate Correct Marks for this submission: 1/1. Question 22 Marks: 1 About 10% of the total nitrogen transported into the enterocytes are in the form of small peptides. Answer: True False Incorrect Marks for this submission: 0/1. Question 23 Marks: 1 What percentage of dietary protein normally escapes bacterial degradation within the rumen? Choose one answer. a. 40% b. 60% c. 20% d. 80% Correct Marks for this submission: 1/1. Question 24 Marks: 1 In an amino acid, the zwitterion is composed of: Choose one answer. a. a sulfhydryl group and an amino group b. a carboxyl group and an amino group c. a amino group and a hydroxyl group d. a carboxyl group and a hydroxyl group Correct Marks for this submission: 1/1. Question 25 Marks: 1Which of the following are precursors for gluconeogenesis? Choose one answer. a. glycerol b. some amino acids c. propionate d. all of the answers are correct Correct Marks for this submission: 1/1. Question 26 Marks: 1 Which of the following is NOT a characteristic of hemoglobin? Choose one answer. a. major protein of the red blood cell b. hydrogen carrier c. oxygen carrier d. composed of four subunits Correct Marks for this submission: 1/1. Question 27 Marks: 1 A zwitterion is an internal salt formed between the charges of the terminal carboxy group and the amino group within the basal amide group. Answer: True False Correct Marks for this submission: 1/1. Question 28 Marks: 1 What mechanisms regulate thirst? Choose one answer. a. receptors in the hypothalamus and stretch receptors in the stomach and heart b. receptors in the liver c. receptors in the hypothalamus and ear canal d. receptors in the