CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
10th Edition
ISBN: 9780136538820
Author: Taylor
Publisher: INTER PEAR
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Chapter 25, Problem 5TYK
As filtrate passes through the loop of Henle, salt is reabsorbed and concentrated in the interstitial fluid of the medulla. This high solute concentration in the medulla enables nephrons to
a. excrete the maximum amount of salt.
b. neutralize toxins that might be found in the kidney.
c. excrete a large amount of water.
d. reabsorb water from the filtrate very efficiently.
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The function unique to the nephron loop is to a. regulate pH. b. excrete water. c. establish a concentration gradient in the medulla interstitial fluid. d. regulate the concentration of blood Ca2+.
Na+ ions are actively transported out of the tubules to help set up the countercurrent multiplier. Which of the following are sites of active Na+ ion transport in the nephron?
Select one:
a. Thin ascending limb of the loop of Henle, distal tubule
b. Thick ascending limb of the loop of Henle, collecting duct
c. Thin ascending limb of the loop of Henle, thick ascending limb of the loop of Henle
d. Collecting duct, descending limb of the loop of Henle
e. Proximal tubule, thick ascending limb of the loop of Henle
which of the following correctly shows the order in which the filtrate moves through the structures of the nephron?
a. proximal tubule - distal tubule - collecting duct - loop of Henle
b. collecting duct - loop of Henle - proximal tubule - distal tubule
c. distal tubule - loop of Henle - proximal tubule - collecting duct
d. proximal tubule - loop of Henle - distal tubule - collecting duct
Chapter 25 Solutions
CAMPBEL BIOLOGY:CONCEPTS & CONNECTIONS
Ch. 25 - Complete this map, which presents the three main...Ch. 25 - In this schematic of urine production in a...Ch. 25 - Prob. 3TYKCh. 25 - In each nephron of the kidney, the glomerulus and...Ch. 25 - As filtrate passes through the loop of Henle, salt...Ch. 25 - Birds and insects excrete uric acid, whereas...Ch. 25 - Prob. 7TYKCh. 25 - Match each of the following components of blood...Ch. 25 - Prob. 9TYKCh. 25 - Prob. 10TYK
Ch. 25 - Prob. 11TYKCh. 25 - Match each of the following components of blood...Ch. 25 - Prob. 13TYKCh. 25 - Prob. 14TYKCh. 25 - Prob. 15TYKCh. 25 - Compare the water and salt regulation in a salmon...Ch. 25 - Prob. 17TYKCh. 25 - Prob. 18TYKCh. 25 - Some diuretics are on a list of substances that...Ch. 25 - Prob. 20TYKCh. 25 - Prob. 21TYKCh. 25 - Prob. 22TYKCh. 25 - Prob. 23TYKCh. 25 - Prob. 24TYKCh. 25 - Scientists have found that the quantity of...
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- Which of the following does not contribute to the high salt concentration in the interstitial fluid of the kidney medulla? (a) active transport of sodium from the upper part of the ascending limb (b) diffusion of salt from the ascending limb of the loop of Henle (c) reabsorption of salt from various regions of Bowmans capsule (d) counterflow of fluid through the two limbs of the loop of Henle (e) diffusion of urea out of the collecting ductarrow_forwardBlood pressure forces water and small solutes out of blood and into nephrons during ________. a. glomerular filtration c. tubular secretion b. tubular reabsorption d. both a and carrow_forwardAs the text noted, two-thirds of the water and solutes that the body reclaims by reabsorption in nephrons occurs in the proximal tubule. Proximal tubule cells have large numbers of mitochondria and demand a great deal of oxygen. Explain why.arrow_forward
- Describe (and label on a diagram) the structures of a nephron (including associated blood vessels) and give the functions of each structure.arrow_forwardAs a person ages, nephron tubules lose some of their ability to concentrate urine. What is the effect of this change?arrow_forwardThe main function of the nephron loop is to: A. Eliminate acid B. Recover glucose and salt from the tubule fluid C. Create a high osmotic concentration in use extracellular fluid of the renal medulla allowing water recovery D. Secrete drugs scubas penicillin This is not and will not be gradedarrow_forward
- The cortical nephron is characterized by all of the following except: a. short nephron loop b. glomerulus is further from the cortex-medulla junction c. glomerulus is close to the cortex-medulla junction d. efferent arteriole supplies peritubular capillariesarrow_forwardGlomerular Filtration Rate (GFR) can be regulated by individual nephrons..which of the following represent the structures that play a role in this "Tubulo-Glomerular Feedback" mechanism? 45. ies, that A. The Corpus-Callosum and the Macula Densa. B. The Juxta-Glomerular Apparatus C. The Supra-Bowmanic Recipricator D. The Osmotic Filament Feedback Modulearrow_forwardWhich of these processes is responsible for kidney function?a. filtration c. reabsorption e. All of these are correct.b. secretion d. Both a and b are correct.arrow_forward
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