Biology: The Unity and Diversity of Life
15th Edition
ISBN: 9780357093795
Author: STARR
Publisher: CENGAGE LEARNING (CUSTOM)
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Chapter 40, Problem 9SQ
Summary Introduction
Introduction: Urine formation starts when glomerular filtration delivers protein-free of plasma into a kidney tubule. Most of the water and solutes return to the blood by the tubular reabsorption machinery. Substances that are not reabsorbed, and which are added to the filtrate by the tubular secretion, end up in the urine. The kidney contributes to the acid-base balance by adjusting the tubular reabsorption of bicarbonate and tubular secretion of H+.
A decline in pH causes an increase in the bicarbonate reabsorption. The bicarbonate moves into peritubular capillaries, where it buffers the excess acid.
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Explain well asap
1. Functions of the Urinary System
A. Kidneys regulate blood levels of several ions, most importantly .
(Na+),
_(K+),
_(Ca2+),
_(CI.),
and
_(HPO42-).
B. Kidneys regulate blood pH by secretion of
and reabsorption of
C. Kidneys regulate blood volume by conserving or eliminating
D. Kidneys regulate blood pressure by secreting the enzyme
which
activates the RAA pathway that increases blood pressure.
E. Kidneys help maintain a relatively constant blood osmolarity of
F. Kidneys produce
mOsm/liter.
(active vitamin D) and
- the
hormone that stimulates RBC production.
G. Kidneys can use glutamine (amino acid) to synthesize
H. Kidneys excrete wastes such as
from deamination of amino acids,
from catabolism of hemoglobin,
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Chapter 40 Solutions
Biology: The Unity and Diversity of Life
Ch. 40 - Pesticide Residues in Urine To carry the USDAs...Ch. 40 - Pesticide Residues in Urine To carry the USDAs...Ch. 40 - Prob. 3DAACh. 40 - An insect's ___ deliver nitrogen-rich waste to its...Ch. 40 - Bowman's capsule, the start of the tubular part of...Ch. 40 - Fluid that enters Bowman's capsule flows directly...Ch. 40 - Blood pressure forces water and small solutes into...Ch. 40 - Kidneys return most of the water and small solutes...Ch. 40 - Prob. 6SQCh. 40 - Prob. 7SQ
Ch. 40 - Match each .structure with a function. _____...Ch. 40 - Prob. 9SQCh. 40 - Prob. 10SQCh. 40 - Prob. 11SQCh. 40 - Prob. 12SQCh. 40 - Prob. 13SQCh. 40 - Prob. 14SQCh. 40 - Prob. 15SQCh. 40 - Like desert rodents such as the kangaroo rat,...Ch. 40 - Compared to closely related species that live in...Ch. 40 - Prob. 3CTCh. 40 - Drinking alcohol inhibits ADH secretion. What...
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- Don't copy from Googlearrow_forwardBob is urinating strange. Something is wrong with the Na+-K+ ATPase pumps on the basolateral membranes of the cells lining his proximal tubule. What is going on with his kidneys? a. Struggling to re-absorb sugarsb. Struggling to produce aquaporinsc. Struggling with filtrationd. Struggling to re-absorb proteinsarrow_forward26) Factors that INCREASE the secretion of ADH include __________. a. increased concentration of sodium ions in the ECF b. water deprivation c. increased osmolarity of the ECF d. decreased renal blood flow e. all of the abovearrow_forward
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