Exam 3 Practice 1 Marks: 1 Folate actually refers to a family of compounds, all resembling pteroylglutamic acid in structure: Answer: True False Correct Marks for this submission: 1/1. Question 2 Marks: 1 In humans, chloride deficiencies are common and are never observed in infants: Answer: True False Incorrect Marks for this submission: 0/1. Question 3 Marks: 1 Which of the following is a micromineral? Choose one answer. a. Ca b. Mg c. P d. Sn Correct Marks for this submission: 1/1. Question 4 Marks: 1 Corn is extremely low in the available form of the following nutrient: Choose one answer. a. niacin b. starch c. fat d. starch and fat Correct Marks for this submission: 1/1. Question 5 Marks: 1 Coenzyme A does not traverse membranes easily because: Choose one answer.a. it is too small b. it is inorganic c. it is of plant origin d. it is too large Correct Marks for this submission: 1/1. Question 6 Marks: 1 Riboflavin deficiency can result in curled-toe paralysis in the chick: Answer: True False Correct Marks for this submission: 1/1. Question 7 Marks: 1 What iron containing protein is located in the muscle? Choose one answer. a. hemoglobin b. transferrin c. ferritin d. myoglobin Correct Marks for this submission: 1/1. Question 8 Marks: 1 In the guinea pig, vitamin C is absorbed from the: Choose one answer. a. duodenum b. jejunum c. ileum d. duodenum and jejunumCorrect Marks for this submission: 1/1. Question 9 Marks: 1 Homocysteine is methylated to regenerate which of the following amino acids? Choose one answer. a. alanine b. methionine c. glycine d. praline Correct Marks for this submission: 1/1. Question 10 Marks: 1 The old nomenclature designates folate as: Choose one answer. a. vitamin B10 b. vitamin B1 c. vitamin B12 d. vitamin B9 Correct Marks for this submission: 1/1. Question 11 Marks: 1 At which valence is iron absorbed? Choose one answer. a. Fe+2 b. Fe+3 c. Fe+1 d. both a and b are correct Correct Marks for this submission: 1/1. Question 12 Marks: 1Se may help prevent some types of cancer. Answer: True False Correct Marks for this submission: 1/1. Question 13 Marks: 1 Sulfite, an oxidized form of sulfur, can cause severe allergic reactions in asthmatics: Answer: True False Correct Marks for this submission: 1/1. Question 14 Marks: 1 Which of the following is not a micromineral? Choose one answer. a. Na b. Cr c. I d. V Correct Marks for this submission: 1/1. Question 15 Marks: 1 Oxalic acid binds _____, thus making it/them unavailable for absorption: Choose one answer. a. Ca b. Fe c. Zn d. Ca and Fe Correct Marks for this submission: 1/1. Question 16 Marks: 1 The largest Zn pool is found in the:Choose one answer. a. liver b. brain c. heart d. muscles Correct Marks for this submission: 1/1. Question 17 Marks: 1 Which of the following is the most biologically available form of vitamin B12? Choose one answer. a. cynaocobalamin b. methylcobalamin c. hydroxycobalamin d. none of the answers are correct Correct Marks for this submission: 1/1. Question 18 Marks: 1 K+serves as a cofactor for the enzyme propionyl COA carboxylase: Answer: True False Correct Marks for this submission: 1/1. Question 19 Marks: 1 In African American males, there is a negative correlation between Ca intake and the development of hypertension: Answer: True False Correct Marks for this submission: 1/1. Question 20 Marks: 1 Which action does aldosterone have on the kidneys and the blood? Choose one answer.a. retain Ca and decrease blood volume b. retain Na and increase blood volume c. retain Se and decrease blood volume d. none of the answers are correct Correct Marks for this submission: 1/1. Question 21 Marks: 1 Hemoglobin is composed of how many protein subunits? Choose one answer. a. 5 b. 3 c. 2 d. 4 Correct Marks for this submission: 1/1. Question 22 Marks: 1 The cofactor form of thiamine is: Choose one answer. a. pyridoxal b. pyridoxamine phosphate c. thiamine pyrophosphate d. methylcobalamin Correct Marks for this submission: 1/1. Question 23 Marks: 1 Iron serves as a cofactor for enzymatic reactions that can be described as: Choose one answer. a. hydrogenation b. transamination c. oxidation/reduction (redox)d. desaturation Correct Marks for this submission: 1/1. Question 24 Marks: 1 Mg participates in the biochemical mechanisms required for which of the following processes: Choose one answer. a. immune function b. blood clotting c. muscle contraction d. all of the answers are correct Correct Marks for this submission: 1/1. Question 25 Marks: 1 Mg deficiency in virtually any species has as a symptom: Choose one answer. a. muscle tetany b. increased growth c. increased intraocular pressure d. increased appetite Correct Marks for this submission: 1/1. Question 26 Marks: 1 Ferritin accounts for what percentage of the body's total iron stores? Choose one answer. a. 5-30% b. 15-25% c. 1-4%d. 65-90% Correct Marks for this submission: 1/1. Question 27 Marks: 1 Which of the following condition(s) can cause K+deficiency in humans: Choose one answer. a. diabetic ketoacidosis b. dehydration c. prolonged vomiting or diarrhea d. all of the answers are correct Correct Marks for this submission: 1/1. Question 28 Marks: 1 P can be an integral component of complex lipids: Answer: True False Correct Marks for this submission: 1/1. Question 29 Marks: 1 Goitrogens are proteins that bind iodine in the gastrointestinal tract and are found in: Choose one answer. a. orange roughy b. members of the cabbage family c. brackenfern d. locoweed Correct Marks for this submission: 1/1. Question 30 Marks: 1 Menhe's Steely Hair syndrome is due to a defect in intestinal Zn transport: Answer:True False Correct Marks for this submission: 1/1. Question 31 Marks: 1 Biotin can be produced by the gut microflora: Choose one answer. a. yes b. no c. unknown Correct Marks for this submission: 1/1. Question 32 Marks: 1 Nicotinamide nucleotides in the food had to be cleaved before niacin is absorbed from the intestinal tract: Choose one