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, Problem 7TYU
Summary Introduction
Introduction:
The process of excretion is very much important for the removal of waste from the body. The nitrogenous waste can be ammonia, urea and other toxic waste. The metabolite ammonia is toxic and is formed by the urea cycle in the liver. The ammonia molecule is toxic and to remove it from the body the organism require huge amount of water. Ammonia is the waste product of various fishes and aquatic organisms, and some terrestrial invertebrates and reptiles secrete uric acid. Urea is less toxic than ammonia.
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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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- Briefly answer for what is urea and what normal body process(es) produces it in the human body?arrow_forwardexplain why some desert animals excrete uric acid rather than ammoniaarrow_forwardcompare excretion of wastes as urea vs uric acid a explain each advantages and disadvantages for each b for each type of waste choose an animal that excretes that type of waste hand how it fits with its lifestylearrow_forward
- 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.arrow_forwardState the implication of a high value of NPN in blood and urine. What does the amount of urea, ammonia, and creatinine in the urine tell us about renal function? Which food substances can lead to an increased value of NPN in the blood?arrow_forwardMany types of fishes live in freshwater. Generally, water moves by osmosis from the surrounding fresh water into the fish's body. This observation helps to explain which feature of the excretory systems of freshwater fishes? a. They tend to produce dilute, watery urine. b. They tend to produce concentrated, dark urine. c. They do not produce urine, but instead conserve or re-use nitrogenous wastes. d. They may produce either dilute or concentrated urine, depending on the activity of the fish.arrow_forward
- Given: The liver and kidneys both extract molecules from the blood. a. How do their routes of excretion differ? (answer a)arrow_forwardDalmatians, unlike other dogs, excrete high levels of uric acid. Explain.arrow_forwardOne type of diuretic given to people with high blood pressure, renal disease and congestive heart failure are thiazide-type diuretics. These drugs inhibit sodium ion reabsorption by inhibiting the transport in the ascending limb of the loop of Henle. A) What does it mean to inhibit the transport of sodium ions in the loop of Henle? B) Explain how this inhibition of sodium ions in the loop of Henle could help increase urine production.arrow_forward
- Humans synthesize most of the cholesterol required for cell membranes and for the synthesis of vitamin D and other steroid hormones. Keeping in mind that living organisms are selfregulating, what would you expect to happen if a person’s diet is high in cholesterol? Provide a reason for your response.arrow_forward54. During a long-distance run on a hot day, an athlete produces large quantities of sweat. As a result, the kidneys change the rate of urine production. Why is this change important? Group of answer choices increased urine production allows more water to remain in the bloodstream decreased urine production increases the amino acids in the blood increased urine production removes amino acids produced because of running decreased urine production allows the body to conserve waterarrow_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_forward
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