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BIOL C121 FINAL EXAM REVIEW QUESTIONS AND ANSWERS WESTERN GOVERNORS’ UNIVERSITY
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BIOL C121 FINAL EXAM REVIEW QUESTIONS AND ANSWERS WESTERN GOVERNORS’ UNIVERSITY
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BIOL C121 FINAL EXAM REVIEWQUESTIONS AND ANSWERS WESTERN
GOVERNORS’ UNIVERSITY
The functional unit of the kidney is called
✔✔the nephron
Given these parts of the nephron:
1. collecting duct
2. distal tubule
3. loop of Henle
4. renal corpuscle
Which of these sequences represents the correct order through which
filtrate would move in the nephron during urine formation?
✔✔4, 3, 2, 1
Small tubes that carry urine from the renal pelvis to the bladder are called
✔✔The ureters
All of these are processes critical to the formation of urine EXCEPT:
✔✔Tubular Hydrolysis
Which of these cannot pass through the filtration membrane?
✔✔Cells
,Which of these percentages represents how much of the original filtrate
becomes urine?
✔✔1%
Approximately what percentage of filtrate volume is reabsorbed in the
proximal convoluted tubule?
✔✔65%
In the ascending limb of the loop of Henle, sodium ions move out by
active transport, and chloride ions move out by diffusion.
✔✔False
In the distal tubule and collecting duct, water moves out by osmosis
when ADH is present
✔✔True
All of these substances are secreted into the nephron EXCEPT:
✔✔Glucose
Antidiuretic hormone (ADH)
✔✔increases permeability of the distal convoluted tubule and collecting
duct to water
Which of these causes decreased blood pressure?
✔✔Secretion of Atrial Naturietic Factor
, More body fluid is contained in extracellular fluid than in intracellular
fluid.
✔✔False
An increase in extracellular sodium causes increased water reabsorption
in the kidneys.
✔✔True
Which of these substances plays a major role in regulating potassium
ions?
✔✔Aldosterone
The pH of the body is maintained at
✔✔7.35- 7.45
Extracellular calcium ion levels are increased by calcitonin secretion.
✔✔False
The kidney control pH by increasing or decreasing the number of
bicarbonate ions reabsorbed from the urine.
✔✔True
Severe vomiting or excess aldosterone production could result in
metabolic acidosis.
✔✔False
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