Campbell Biology (10th Edition)
10th Edition
ISBN: 9780321775658
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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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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A fish swims from a body of cool water into a body of warm water. As its body temperature rises, its rate of O2 consumption increases. The warm water, however is likely to have a lower concentration of dissolved O2 than the cool water because the solubility of O2 in water decreases as temperature increases. These two factors taken together, an increase in the fish's rate of O2 consumption and a decrease in the dissolved O2 concentration of its environmental water, can make it difficult for the fish to obtain enough O2 to meet its needs. The two factors can act as a two-pronged trap. Actually, however, the fish may face a three-pronged trap. How is the increase in temperature likely to affect the O2 affinity of the fish's hemoglobin, and how could the effect on hemoglobin add even further to the challenge the fish faces? Does global warming pose concerns of this sort?
When our tissues are burning metabolic fuel they produce protons and carbon dioxide. The enzyme carbonic anhydrase uses water to convert most of the carbon dioxide into carbonic acid.
i) Describe the change of the blood carbon dioxide concentration of the swimmer from Phase I to the end of Phase II (do NOT explain the other phases)?
ii) How does this change in the blood carbon dioxide concentration impact the pH of the blood of the swimmer from Phase I to the end of Phase II (do NOT explain the other phases)?
iii) explain the chemical reasoning behind the impact on pH from Phase I to the end of Phase II (do NOT explain the other phases).
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.
Chapter 44 Solutions
Campbell Biology (10th 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 - Prob. 2CCCh. 44.3 - Where and how does filtrate originate in the...Ch. 44.3 - Prob. 4CCCh. 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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- 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?…arrow_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_forwardWhen 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_forward
- The carbonic acid equilibria are shown below. Tissues that are aerobically active produce CO2. This causes this equilibrium to shift to the ______, which causes the pH of the blood to ______. H+ + HCO3- <--> H2CO3 <--> H2O + CO2 a) right; increase b) right; decrease c) left; increase d) left; decreasearrow_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_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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