Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 44.4, Problem 3CC
Summary Introduction
To explain: The effect on the rate of the blood filtration in the Bowman’s capsule, when the blood pressure in the afferent arteriole leading to a glomerulus is decreased.
Concept introduction: The change in the blood pressure in the glomerulus and Bowman’s capsule is regulated by the Renin-Angiotensin-Aldosterone system (RAAS). The secretion of this hormone in the juxtaglomerular apparatus causes the reabsorption of the water and ions in the kidney tubules. The enzyme renin is released in response to the decrease in the blood pressure around the afferent arterioles. The precursor angiotensinogen cleaves into angiotensin.
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This diagram illustrates which of the following
Choose from the following:
(A) secretion of hydrogen via Na+/H+ exchange ions by the proximal convoluted tubule
(B) reabsorption of bicarbonate ions by intercalated cells (A) in the collecting duct
(C) secretion of H+ by H+K+/ATPase pumps in the intercalated cells (A) in the collecting duct
(D) A and B
(E) all of the above
19,
Which of the following would increase glomerular filtration?
Multiple Choice
constriction of efferent arteriole because it will increase blood flow to the glomerulus
constriction of afferent arteriole because it will increase blood flow to the glomerulus
increase in the osmotic pressure of blood in glomerular capillaries
increase in the hydrostatic pressure of filtrate in the glomerular capsule
Identify the mechanism of transport used in this location across the simple cuboidal cell of the proximal convoluted tubule
Choose from the following:
(A) facilitated diffusion
(B) simple diffusion
(C) active transport
(D) secondary active transport
Chapter 44 Solutions
Campbell Biology
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