Campbell Biology (10th Edition)
10th Edition
ISBN: 9780321775658
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Chapter 44, Problem 9TYU
SCIENTIFIC INQUIRY You are exploring kidney function in kangaroo rats. You measure urine volume and osmolarity, as well as the amount of chloride (Cl ) and urea in the urine. If the water source provided to the animals were switched from tap water to a 2% NaCl solution, indicate what change in urine osmolarity you would expect. How would you determine if this change was more likely due to a change in the excretion of Cl or urea?
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SCIENTIFIC INQUIRY You are exploring kidney function inkangaroo rats. You measure urine volume and osmolarity, as wellas the amount of chloride (Cl-) and urea in the urine. If the watersource provided to the animals were switched from tap water toa 2% NaCl solution, indicate what change in urine osmolarityyou would expect. How would you determine if this change wasmore likely due to a change in the excretion of Cl-or urea?
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Chapter 44 Solutions
Campbell Biology (10th Edition)
Ch. 44.1 - The movement of salt from the surrounding water to...Ch. 44.1 - Prob. 2CCCh. 44.1 - WHAT IF? Researchers found that a camel in the...Ch. 44.2 - What advantage does uric acid offer as a...Ch. 44.2 - Prob. 2CCCh. 44.3 - Prob. 1CCCh. 44.3 - Prob. 2CCCh. 44.3 - Where and how does filtrate originate in the...Ch. 44.3 - Prob. 4CCCh. 44.4 - What do the number and length of nephrons in a...
Ch. 44.4 - Many medications make the epithelium of the...Ch. 44.4 - Prob. 3CCCh. 44.5 - How does alcohol affect regulation of water...Ch. 44.5 - Prob. 2CCCh. 44.5 - Prob. 3CCCh. 44 - Prob. 44.1CRCh. 44 - DRAW IT Construct a table summarizing the three...Ch. 44 - Prob. 44.3CRCh. 44 - Prob. 44.4CRCh. 44 - Why can only some patients with diabetes insipidus...Ch. 44 - Prob. 1TYUCh. 44 - Prob. 2TYUCh. 44 - Prob. 3TYUCh. 44 - The high osmolality of the renal medulla is...Ch. 44 - In which of the following species should natural...Ch. 44 - Prob. 6TYUCh. 44 - Prob. 7TYUCh. 44 - Prob. 8TYUCh. 44 - SCIENTIFIC INQUIRY You are exploring kidney...Ch. 44 - Prob. 10TYUCh. 44 - SYNTHESIZE YOUR KNOWLEDGE The marine iguana...
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- The mammalian kidney contains an immense network of nephrons that functions to conserve water by producing urine that is hyperosmotic compared to other body fluids. Explain how the transport epithelia of the nephron and collecting duct are able to use transport mechanisms to process the filtrate as it moves through the vessels and produce a hyperosmotic filtrate.arrow_forwardWhich of the following best describes the changes between dilute (osmolarity 50mOsm/Kg) andconcentrated urine (osmolarity 1200mOsm/Kg)? a. Concentrated urine has more water than NaCl moleculesb. Concentrated urine has less water than NaCl moleculesc. Dilute urine has more NaCl than water moleculesd. Dilute urine has less water than NaCl moleculesarrow_forwardThe mammalian kidney contains an immense network of nephrons that functions to conserve water by producing urine that is hyperosmotic compared to other body fluids. Describe in detail how the transport epithelia of the nephron and collecting duct are able to use transport mechanisms to process the filtrate as it moves through the vessels and produce a hyperosmotic filtrate.arrow_forward
- Draw a schematic diagram showing the flow of water and salts in the proximal tubule of the kidney. In this diagram, put the lumen on the left side of the diagram and the extracellular fluids on the right side of the diagram. Indicate where the lumen is, where the extracellular fluid is, where the apical portion of the cell is, and show the location of the proteins that are responsible for the movement of water and salts and glucose reabsorption in this area of the kidneyarrow_forwardThe kidneys of different species of amniotes differ widely in their ability to concentrate the urine. What determines the maximum osmolarity of the urine an animal's kidney can produce? Explain why. (not to long)arrow_forward1.What is the role of the renal system in regulating potassium ion concentration in the extracellular fluid [ECF]? a. Kidneys filter and excrete excess potassium ions into the urine. b. Kidneys respond to aldosterone by not excreting any potassium ions into the urine. c. Kidneys reabsorb all potassium ions into the urine. d. Kidneys excrete water molecules through aquaporins in the collecting duct. 2.Identify the cardiac dysrhythmia most associated with hypomagnesemia.arrow_forward
- The loop of Henle in the mammalian renal tubule…arrow_forwardWhich molecules are responsible for the high osmolarity of the renal medulla in the mammalian kidney? "Na+, Cl-, and K+" "urea, uric acid, and Na+" "Na+, Cl-, and urea" "uric acid, urea, and amonia"arrow_forwardUnder ALL CONDITIONS of salt and water intake the kidneys must: A. Excrete more water than osmolytes by concentration only B. Excrete more water than osmolytes by amounts only OC. Excrete more water than osmolytes by amounts AND concentration OD. Excrete variable amounts of water that are sometimes less than amounts of osmolytesarrow_forward
- How would one describe insensible water loss, such as loss from the lungs? A. this type of water loss is the reason for most body water loss B. this helps to maintain a constant fluid balance in humans C. this water loss cannot be altered as needed by an organism D. this has the greatest affect on electrolyte balance in humans On average, the greatest loss of water from the human body occurs by: Group of answer choices A. perspiration B. feces production C. moisture loss at lungs D . urination Which of the following hormones helps to balance Ca2+ in the blood? Group of answer choices ADH & aldosterone PTH & calcitonin insulin & glucagon renin & ANParrow_forwardCompare and contrast the complete functions of the kidneys and the heart using a table. If you can only choose 1 to remain in your body, what whould you choose? Make your reason more substantial by considering the role of both the heart and the kidneys in blood pressure regulation.arrow_forwardDon't copy from Googlearrow_forward
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