Campbell Biology (11th Edition)
11th Edition
ISBN: 9780134093413
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 44.1, Problem 1CC
The movement of salt from the surrounding water to the blood of a freshwater fish requires the expenditure of energy in the form of ATP. Why?
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In the aquatic world, osmoregulation is very important. Please describe what would happen at the cellular level as well as organismal level to a freshwater fish that is placed in salt water.
Imagine a saltwater fish is placed into freshwater. What would happen on a cellular level? How are fish like salmon, who spend the first part of their life in the ocean and then travel to freshwater to spawn, able to overcome potential physiological consequences? Describe three adaptations salmon use to overcome the salinity changes encountered.
10) Osmoregulation refers to the ability of an organism to maintain homeostasis with respect to
the solute concentration of their bodies.
Euryhaline fish are able to live in both fresh water and salt water at different points of their life.
In order to osmoregulate in both environments, one physiological change that occurs in these fish
is the direction in which they actively transport ions across their gills.
a) In what direction are ions actively transported across the gills of euryhaline fish when they are
in freshwater versus salt water?
In freshwater:
(into body or out of body)
In salt water:
(into body or out of body)
b) Briefly explain why active transport is required in these cases.
121
11) The table below compares and contrasts carrier protein pumps with clathrin-dependent
receptor-mediated endocytosis. Fill in the empty spaces of the table with the appropriate ans
Clathrin-
Carrier protein
dependent
receptor mediated
endocytosis
pump
Involvement of multiple types of
proteins?…
Chapter 44 Solutions
Campbell Biology (11th 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 - 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 - 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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- The bacterium Vibrio cholerae causes cholera, a disease characterized by severe diarrhea that may cause infected people to lose up to 20 L of fluid in a day. The bacterium enters the body when someone drinks contaminated water. It adheres to the intestinal lining, where it causes cells of the lining to release sodium and chloride ions. Explain how this release is related to the massive fluid loss.arrow_forwardIn a Bio lab you determine that the cost of transport for two fish from different species is 1 kJ/km for fish one, and 10 kJ/km for fish two. Provide an estimate of the swimming speed of each fish assuming that a) both fish have the same metabolic rate; b) fish two has a metabolic rate 10 times higher than the metabolic rate of fish one; and c) fish one has a metabolic rate that is 100 times smaller than the metabolic rate of fish two. Note that the ratio of metabolic rate to speed defines the cost of transport in units of energy/distancearrow_forwardTwo solutions are separated by a semipermeable membrane that is permeable only to water. The two solutions are: Solution A = 150 mM KCl Solution B = 150 mM Angiotensin (a 7 amino acid polypeptide) Which of the following would best explain the net movement in this situation? - water will move from the KCl side to Angiotensin side - water will move from Angiotensin side to KCl side - The Cl- ion will move to the angiotensin side until there is 75 mM Cl- on each side - Since Angiotensin is not an ion, it can move through the membrane - There is no net water movement as the concentrations are the same on both sidesarrow_forward
- When bacteria such as E. coli are starved to a sufficient extent, they become nonmotile. However, when such bacteria are placed in an acidic solution, they resume swimming. Explainarrow_forwardWhen blue crabs living in full-strength seawater swell duringmolting, they take on the H2O that bloats their bodies from theseawater in which they live. They obtain some of the H2O bydrinking. In addition, data show that the activity of Na+–K+-ATPase in their gills increases as they start to swell duringmolting. This rise in ATPase activity suggests that the gillsincrease active transport of ions from the surrounding seawaterinto the blood of the crabs. How could this process help accountfor uptake of H2O?arrow_forwardHere is a chloride cell in the gill epithelium of a fish. For reference, NKA = Na+/K+ ATPaseNKCC = Na+/K+/Cl- cotransporter. (image 1) The same proteins have been identified in shark rectal gland, marine birds and reptiles (salt glands in nostrils), marine fishes (chloride cells in their gills) and mammals that transport salt in their kidneys. (image 2) When biologists were testing the mechanism of salt excretion in sharks, they used a chemical called ouabain to inhibit the Na+/K+ ATPase to see if there was an effect. Which result would you expect to see with ouabain treatment? A. A decrease in Cl- in the epithelial cells. B. An increase in ADP in the epithelial cells. C. An increase in K+ in the epithelial cells. D. A decrease in Na+ in the epithelial cells.arrow_forward
- A freshwater fish was accidentally placed in salt water. After several minutes in the saline water it died. What is the most logical explanation for its death?arrow_forwardsodium-potassium pumps are the driving force behindarrow_forwardTable 8.2. Measurement of the Metabolic Rate of a Frog at Different Environmental Temperatures. Metabolic Rate Metabolic Rate Packed in Ice (5°C) Room Temperature (20°C) Frog #1 0.05 0.30 ml 02/ hour / gm Frog #2 0.03 0.28 Frog #3 0.04 0.25 Procedure Calculate the average metabolic rate for the three frogs at each of the two temperatures. Put a dot on the graph in Figure 8.11 for each of the average values. Draw a line between those two dots. Write the word ectotherm on the line.arrow_forward
- Production of any sort of nitrogenous waste other than ammonia costs energy. Name at least three distinctly different advantages an animal might gain by investing in production of urea or uric acid.arrow_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_forwardWhy might some animals find it beneficial to convert ammonia to urea? ammonia is not water soluble urea is less toxic than ammonia and can be concentrated to a greater extent energy is released in the form of ATP when ammonia is converted to urea ammonia cannot diffuse out of the body through the gills and skin while urea canarrow_forward
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