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BIOL 431 Unit 4 Sample Exam Questions and Answers
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BIOL 431 Unit 4 Sample Exam Questions and Answers
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BIOL 431 Unit 4 Sample Exam Questionsand Answers
activation of parasympathetic neurons would release the chemical ..... causing the
bladders muscle cells to.... leading to bladder... - Answer-ACh; Contract; Emptying
In class we discussed that in one minute about 1000 ml of blood typically enters the
kidneys via arteries branching from the aorta. Given this, we would expect which of the
following values? - Answer-110 ml/min to be filtered; 109 ml/min to be reabsorbed; 1
ml/min to be excreted
Filtration in the kidneys takes place directly in the... - Answer-Glomerular capillaries
an experimental chemical injected into test subjects causes the efferent arterioles in the
kidneys to vasoconsrict while the diameter of the afferent arterioles remains unchanged.
Predict expected changes to RBF and GFR - Answer-Decrease RBF; Increase GFR
Which metabolic by-product is created during protein metabolism and routinely excreted
in urine? - Answer-urea
The net transportation of molecules from the peritubular capillaries into the filtrate within
the nephron's lumen is called... - Answer-secretion
During aerobic exercise sympathetic output will cause which of the following - Answer-
Vasoconstriction of the afferent arterioles to decrease GFR
Which of the following molecules is easily filtered in the kidneys and is normally
completely reabsorbed in the tubules of the nephron and is usually not detected in the
urine - Answer-glucose
The function of the portion of the nephron labeled "R" is primarily (descending limb) -
Answer-Water reabsorption
Textbooks suggests that about 70% of filtered substances (Including water, ions, and
nutrients) in the kidneys are automatically reabsorbed in the... - Answer-proximal
convoluted tubules
The transport of molecules from the vasa recta capillaries into the filtrate within the
nephron's lumen is called... - Answer-reabsorption
PTH circulating in the plasma targets cells of the nephron to increase which of the
following? - Answer-Calcium channels in the luminal membrane of the DCT and CD
cells
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