Biol 103 Online Quiz #2.docx - Quiz 2 Question 1 Fluids...

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Quiz 2Question 1Fluids move through the kidney tubule in the following order: Bowman'scapsule, distal tubule, loop of Henle, proximal tubule, collecting duct.FalseAnswer: FALSE. The order is correct except the proximal (not distal) tubulecarries fluid into the loop of Henle and the distal tubule (not the proximal) carriesfluids from the loop of Henle.Proximal means "close", which in this case isappropriate because it is closest to the Bowman's capsule.Hide Feedback
Question 2In contrast to passive transport, all forms of active transport require ATP.Hide Feedback
Question 3Osmolarity of body fluids is important to regulate because the membranes ofcells are impermeable to solutes and water.Hide Feedback
movement of water in response to osmotic gradients causes cells to shrink or swell.Question 4The glomerulus of the mammalian kidney employs active transport to filtersolutes and fluids into the Bowman's capsule of the nephron.Hide Feedback
Question 5The osmolarity gradient in the mammalian kidney plays a key role in the abilityto produce concentrated urine.TrueAnswer: TRUE. Water moves out of the descending limb of the loop of Henleand the collecting duct in response to increasing osmolarity in the interstitialfluid of the renal cortex and medulla .Hide Feedback

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