Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 44, Problem 1TYU
Summary Introduction
Introduction: The structure of excretory system varies from one group of animals to another. In
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Draw a well labelled diagram of a mammalian kidney tubule(nephron) and its blood supply.
1) Compared to those of similarly sized birds and lizards, the kidneys of mammals ______.
A) have larger glomeruli, but shorter nephron loops
B) have larger glomeruli, but shorter nephron loops
C) have lower concentration of urea in their renal medulla
D) have higher concentrations of Na+ and Cl- in their renal medulla
Which of the following ions is important for the symport transport of amino acids, glucose and other solutes through the membrane into nephronest epithelial cells?
a) Cl-
b) Ca2 +
c) Na +
d) K +
Chapter 44 Solutions
Campbell Biology
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 - Where and how does filtrate originate in the...Ch. 44.3 - Prob. 3CCCh. 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 - Prob. 4TYUCh. 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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- Which process in the nephron is least selective? (A) filtration (B) reabsorption (C) active transport (D) secretionarrow_forwardDefine nitrogenous wastes, and list the main types produced in animals.What are some advantages and disadvantages of excreting differenttypes of nitrogenous wastes?arrow_forwardThe bodily fluids of freshwater fish contain higher concentration of dissolved solids in their surroundings, so they tend to bloat (take in water) or lose electrolytes. How can freshwater fish avoid this? 1.) By drinking lots of water? 2.) By actively transporting ions out from the gills into the water? 3.) by excreting highly concentrated urine? 4.) by resorbing ions in nephronsarrow_forward
- Identify the incorrect statement about reabsorption at the nephron (A) water becomes more salty as it travels down the loop of henle(B) water gets reabsorbed through osmosis(C) aquaporins allow for the passage of water(D) the Osm is 1200 prior to entering the loop of henlearrow_forwardWhat do invertebrate and vertebrate excretory structures have in common?arrow_forward1) The kidneys seen in the early embryonic development amniotes are similar to the kidneys of adult hagfish in many ways. Which of these does NOT accurately describe one of these similarities? A) Both have nephrons with funnels opening into the peritoneal cavity or coelem. B) Both rely solely on the metanephritc nephrons to produce urine. C) Both have pronephric tubules and mesonephric tubules. D) Both have pronephric (archinephric) ducts that empty into the cloaca.arrow_forward
- Mention the function of the following(a) Ureters in frog(b) Malpighian tubules(c) Body wall in earthwormarrow_forward29. If Loop of Henle is absent from the mammalian nephron, which of the fo!llowing will be expected to happen? A) There will be no urine formation. B) There would be any hardly change in the quantity and quality of the urine formed. C) The urine will be more concentrated. D) The urine will be more diluted. 30. A person who is on a long hunger strike and is surviving only on water, will have A) Less amino acids in his urine. B) Macula densa cells C) Less urea in his urine D) More sodium in his urinearrow_forwardOsmoregulators A) are an example of acclimation. B) have wide tolerance limits. C) are an example of homeostatic species. D) use urea to excrete nitrogen.arrow_forward
- Describe structure of the nephron. How is the mammalian nephron capable of creating concentrated urine? How does filtration take place?arrow_forwardCompare the excretory systems of a flatworm and an annelid worm. How are they similar? How are they different?arrow_forwardHow are nephridial organs and Malpighian tubules alike? How are they different? (Hint: Consider both structure and function.)arrow_forward
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