Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 32.4, Problem 3CC
WHAT IF? A camel standing in the sun requires much more water when its fur is shaved off. although its body temperature remains the same. What can you conclude about the relationship between osmoregulation and the insulation provided by fur?
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WHAT IF? Kidney failure is often treated by hemodialysis, in which blood diverted out of the body is filteredand then allowed to flow on one side of a semipermeablemembrane. Fluid called dialysate flows in the oppositedirection on the other side of the membrane. In replacingthe reabsorption and secretion of solutes in a functionalkidney, the makeup of the starting dialysate is critical.What initial solute composition would work well?
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Elucidate the fundamental challenges the aquatic vertebrates and terrestrial vertebrates face in osmoregulation and their strategies to overcome them. Emphasize the modifications of their osmoregulatory organs.
uestion 11
The standing osmotic gradient hypothesis uses the following to explain increased water absorption when the lateral intercellular spaces are long, narrow and express extra Na/K pumps.
O A. Active transport of water
B. Increased sodium absorption when water absorption is increased
O C. Increased water absorption when a water concentration gradient is increased
Chapter 32 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 32.1 - What properties do all types of epithelia share?Ch. 32.1 - Prob. 2CCCh. 32.2 - Prob. 1CCCh. 32.2 - Prob. 2CCCh. 32.2 - Prob. 3CCCh. 32.3 - Is it accurate to define homeostasis as a constant...Ch. 32.3 - Prob. 2CCCh. 32.3 - Prob. 3CCCh. 32.4 - What is the function of the filtration step in...Ch. 32.4 - What advantage does uric acid offer as a...
Ch. 32.4 - WHAT IF? A camel standing in the sun requires much...Ch. 32.5 - Prob. 1CCCh. 32.5 - Prob. 2CCCh. 32.5 - WHAT IF? If blood pressure in the afferent...Ch. 32 - The body tissue that consists largely of material...Ch. 32 - Prob. 2TYUCh. 32 - Which process in the nephron is least selective?...Ch. 32 - Homeostasis typically relies on negative feedback...Ch. 32 - Prob. 5TYUCh. 32 - In which of the following species should natural...Ch. 32 - Prob. 7TYUCh. 32 - Prob. 8TYUCh. 32 - Prob. 9TYUCh. 32 - Prob. 10TYUCh. 32 - FOCUS ON ORGANIZATION In a short essay (100-150...Ch. 32 - SYNTHESIZE YOUR KNOWLEDGE These macaques (Macaca...
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- Which of the following is not true about acclimatization? Acclimatization allows animals to compensate for changes in their environment Acclimatization improves function in a new environment Acclimatization occurs when an animal tries to reestablish a homeostatic set point Acclimatization is passed on to offspring of acclimated individuals.arrow_forwardTest Your Understanding 16 EVOLUTION LINK The kangaroo rats diet consists of dry seeds, and it drinks no water. What types of osmoregulatory adaptations might help this animal survive?arrow_forwardWhich of the following statements about osmoregulation is true? a. In freshwater invertebrates, salts move out of the body into the water because the animal is hypoosmotic to the water. b. A marine teleost has to fight gaining water because it is isoosmotic to the sea. c. Most land animals are osmoconformers. d. Vertebrates are usually osmoregulators. e. Terrestrial animals can regulate their osmolarity withoutexpending energy.arrow_forward
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- q17arrow_forwardWhat is an effect of drinking too much water? Multiple Choice O O O Osmoreceptors gain water and swell; ADH release is stimulated. Osmoreceptors lose water and shrink; ADH release is inhibited. Osmoreceptors lose water and shrink; ADH release is stimulated. Osmoreceptors gain water and swell; ADH release is inhibited.arrow_forwardWhich mechanism of osmoregulation is shared by sharks and hagfish? the osmolarity of their plasma is about the same as that of sea water both are osmoregulators both excrete all of their nitrogenous wastes as uric acid both drink large amounts of fresh water to avoid desiccation (drying out)arrow_forward
- a) The process by which salmon maintain an internal balance is called osmoregulation. Describe how salmon achieve osmoregulation as they migrate between fresh and saltwater environments. b) Describe what happens to salmon in fresh water. What direction do solutes tend to move via diffusion? What direction does water tend to move via osmosis?arrow_forwardIf osmoregulatory hypotonic fish species are generally bony fish and osmoregulatory hypertonic fish species are generally soft and absorbent. Does it mean the reason for them being soft or bony from an evolutionary standpoint gives reason to why they are formed that way? Basically what I'm trying to ask is whether they are hypotonic or hypertonic, does it have a correlation to why they are bony or muscular like in structure.arrow_forwardTotal body water is? Select one: a. More in female than males of the same weight b. About 40% of body weight. c. Equally distributed in extra-cellular and intracellular space. d. Distributed 20% extra-cellular fluid and 40% intracellular fluid. e. All choices are correct.arrow_forward
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