Campbell Biology, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (10th Edition)
10th Edition
ISBN: 9780133922851
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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Textbook Question
Chapter 44, Problem 44.2CR
DRAW IT Ø Construct a table summarizing the three major types of nitrogenous wastes and their relative toxicity, energy cost to produce, and associated water loss during excretion .
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List the costs and benefits of the excretion of ammonia,urea, or uric acid as nitrogenous waste products.
Which statement about nitrogenous wastes is true?
ammonia cannot be concentrated as much as urea and uric acid because it is more toxic
some vertebrates are able to avoid producing nitrogenous wastes by using only anaerobic respiration
most vertebrates that produce urea excrete the urea as salt crystals that have precipitated out of solution to conserve water
many saurapsids excrete their nitrogenous wastes as nitric oxide
All of these are correct
In general terms, explain the role in insects of the malpighian tubules and rectum in conserving water, ions, and amino acids and removing nitrogen waste.
Chapter 44 Solutions
Campbell Biology, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (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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- Describe the three steps in which organisms excrete wastes.arrow_forwardIndicate whether the following sentences is True or False 1) Urea is the major nitrogen-containing metabolic product of protein catabolism in humans, accounting for > 75% of the nonprotein nitrogen eventually excreted 2) Dialysis is the process of separating substances in solution based on size and the difference in their diffusion rates through a semipermeable membranearrow_forwardOn the basis of the type of nitrogenous end product, there are three modes of excretion in animals. These are ammonotelism, ureotelism, and uricotelism. Explain.arrow_forward
- A bird just flew overhead and bird droppings landed on your car. The droppings are a white paste. What are the primary components of this excrement? Compare/contrast excretion of ammonia, urea, and uric acid relative to source, energy needed to produce, and toxicity.arrow_forwardWhat species excrete excess nitrogen as ammonia? Which ones excrete it as uric acid?arrow_forwardWhich of the following could cause an INCREASE in the concentrations of ions found in the blood? 1. The glomerulus (Bowman's capsule) filters more substances than it's supposed to 2. The nephron reduces the amount of substances allowed to leave 3. More water is reabsorbed in the urinary system than usual 4. The organism dramatically decreases the amount of water consumedarrow_forward
- Distinguish among the 3 forms of N-Wastes that are removed from animal systems.arrow_forwardEremina and Lanistes are types of snail. One genus lives in a desert environment and the other lives in fresh water. Researchers dissected the snails and measured the amount of uric acid present in the snail nephridia (the typical excretory organ of gastropods). • Using the information from the table below, identify the environment in which each genus of snail lives. Explain your reasoning." • What do you think would be the major nitrogenous waste excreted by Lanistes ? Explain your reasoning. Table 3. Nephridial uric acid content of Eremina and Lanistes Time Eremina Lanistes Number of mg urio acid animals dissected N/gm nephridia Number of mg uric acid animals dissected N/gm nephridia 14.6664 19.8299 23.4905 22.2814 11.5800 20 15 20 20 20 0.1743 0.2167 0.1873 0.1560 0.1101 20 20 June July Angust September October 20 20 20arrow_forwardProvide the names of the organisms that form the followingsubstances as nitrogenous waste molecules:a. uric acidb. ureac. allantoated. NH4e. allantoinarrow_forward
- A sheep consumes 2 kg DM of feed containing 75 g N/kg. The sheep excretes 60 g N in the faeces and 20 g N in the urine, what is the N-balance? Comment on the answer relating it to the domestic farm animal.arrow_forwardCompare and contrast the ways that metabolic wasteproducts enter the excretory systems of flatworms,earthworms, and insects.arrow_forwardThe excretory systems of annelids and mollusks include structures called nephridia, while the excretory systems of insects and spiders include Malpighian tubules. Which is a significant difference between nephridia and Malpighian tubules?arrow_forward
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