SCB 204.1738, 1739
Robyn O’Kane, Ph.D.
Quiz 6
Spring I 2008
Name_________________________________________________________________
Nutrients and Metabolism
Match the following terms with their descriptions:
1. Glycogenolysis A. Occurs when blood glucose levels are low
2. Lipogenesis B. Anaerobic breakdown of glucose
3. Glycogenesis
4. Glycolysis
C. Glucose molecules get packaged into glycogen
D. Occurs when caloric intake exceeds energy expenditures
5. All of the following are correct descriptions of the vitamin EXCEPT
A. A is produced from beta-carotene.
B. B vitamins are fat soluble.
C. C is an antioxidant.
D. D is a fat soluble vitamin.
6. Hepatocytes and skeletal muscle fibers
A. can both undergo glycogenolysis.
B. are where carbohydrates are stored.
C. can both produce lactic acid.
D. All of the above are correct.
E. A and B are correct only.
7. Beta oxidation
A. can result in ketone bodies being produced from acetyl CoA.
B. is the process by which glycerol is broken down.
C. occurs in the cytosol.
D. relies on the chemiosmotic mechanism to produce ATP.
8. The majority of the ATP production from the catabolism of glucose occurs directly via
A. glycolysis. B. electron transport chain.
C Kreb’s cycle.
9. All of the following occur in the mitochondria EXCEPT
A. electron transport chain.
B. beta-oxidation.
C. Kreb’s cycle.
D. glycolysis.
10. Catabolism of amino acids
A. creates ammonia.
B. breaks peptide bonds.
C. forms proteins.
D. only occurs in the skeletal muscle cells.
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11. Which of the following is correct?
A. Essential amino acids are produced within the body via transamination reactions.
B. All complete proteins have all 20 amino acids in them.
C. Incomplete proteins are missing some essential amino acids.
D. Essential fatty acids are produced within the body.
12. Which lipoprotein carries cholesterol from the liver to the body cells?
A. Very low-density lipoproteins
B. Chylomicrons
C. High-density lipoproteins
D. Low-density lipoproteins
13. Glucose is
A. the body’s preferred energy source.
B. produced from parts of triglycerides through gluconeogenesis.
C. the preferred storage form for carbohydrates.
D. All of the above are correct.
E. A and B are correct only.
14. Ketone bodies are
A. found in a lower concentration in the bloodstream of diabetics.
B. produced during lipid catabolism.
C. normally produced at such a high rate that a person’s breath is sweet-smelling after she has any fat in her diet.
D. the essential fatty acids.
Urinary System
15. All of the following are correct regarding the effects of renin release EXCEPT
A. blood pressure and volume become reduced.
B. aldosterone is released.
C. angiotensin II is activated.
D. more sodium, chloride, and water are reabsorbed from the proximal convoluted tubule.
16. Storage of urine is due to ________________ innervation; micturition is due to
___________________ innervation.
A. sympathetic; parasympathetic
B. parasympathetic; sympathetic
C. parasympathetic; parasympathetic
D. sympathetic; sympathetic
17. When blood pH begins to go below 7.35, the kidneys will
A. conserve more H + .
B. secrete more H
+
.
C. conserve more HCO
3
-
.
D. B and C are correct.
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18. Water is reabsorbed everywhere in the nephron EXCEPT
A. descending limb of the loop of Henle.
B. proximal convoluted tubule.
C. collecting duct in the presence of ADH.
D. ascending limb of the loop of Henle.
19. Filtration
A. is the movement of fluid out of the glomerular capillaries.
B. occurs in the glomerular capsule.
C. produces fluid in the capsular space that is similar to plasma.
D. All of the above are correct.
20. Calcium is reabsorbed via cells of the ____________________ when
____________________ is present.
A. distal convoluted tubule; parathyroid hormone
B. collecting duct; antidiuretic hormone
C. proximal convoluted tubule; calcitonin
D. loop of Henle; aldosterone
21. When the afferent arterioles are exposed to an increased blood pressure, their cells reflexively
A. relax. B. contract. C. reabsorb water. D. secrete H
+
.
22. Blood enters the glomerular capsule via the
A. renal artery.
B. afferent arteriole.
C. efferent arteriole.
D. peritubular capillaries.
23. The major substances that are reabsorbed include
A. Glucose, amino acids, and ammonia.
B. Glucose, ammonia, and Cl
-
.
C. Na + , Cl , and glucose.
D. Na
+
, Cl
-
, and H
+
.
24. The two main factors that allow a concentrated urine to be formed are
A. a high concentration of solutes in the distal convoluted tubule and ADH.
B. ADH and urea.
C. cortical loops of Henle and ADH.
D. active Na + reabsorption and atrial natiuretic peptide
25. Urinary retention will occur with
A. catheterization.
B. pregnancy.
C. hypertrophied prostate.
D. kidney stones.
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26. Which of the following will increase if kidney function is poor?
A. Ammonia in the blood
B. BUN
C. Plasma creatinine
D. All of the above will increase.
27. Regulation of blood pH is partly due to
A. deamination of glutamine in the proximal convoluted tubule cells.
B. control of H
+
secretion by the nephron.
C. ADH.
D. All of the above are correct.
E. A and B are correct only.
28. A person suffering from pyelonephritis will have blood cells in his urine. This is because
A. renal plasma clearance is 0.
B. blood colloid osmotic pressure increased.
C. the podocytes and endothelial cells have been damaged, creating larger filtration slits.
D. net filtration pressure is negative.
29. Dehydration will cause
A. blood colloid osmotic pressure to increase.
B. net filtration pressure to increase.
C. renal blood flow to increase.
D. glomerular filtration rate to increase.
30. Who has the highest likelihood of getting bladder cancer?
A. Male non-smoker, age 65
B. Female non-smoker, age 65
C. Female smoker, age 65
D. Male smoker, age 65
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