Biology
Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 41, Problem 10TY
Summary Introduction

Introduction: Water is the main component in the bodies of animals. Many solutes ions like Na+ and K+ are dissolved in the water of an animal’s body. Water and ions maintain the homeostasis of the organism.

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Increasing the concentration of solutes increases osmotic potential, hence water potential decreases. A. Agree, because presence of solutes increses osmotic pressure and thus osmotic potential. C. Agree, because they just represent the same values. D. Disagree, because it is the decrease in water pressure that decreases osmotic potential. B. Disagree, because presence of solutes increases osmotic pressure which decreases osmotic potential.
The thirst mechansim stimulates your desire to drink fluids in response to increased salt in your blood or a decrease in___? A. Salt in intracellular fluids B. Tissue dryness C. Blood pressure and blood volume D. The amount of potassium retained intracellularly
Sharks live in marine (saltwater) habitats and are osmoconformers. Based on this information which of the following is/are true (select all that apply): A. Sharks have tissues/body fluids that are isoosmotic relative to the environment  B. Sharks have tissues/body fluids that are hypoosmotic relative to the environment       C. Sharks devote considerable energy to osmoregulation      D. Sharks do not devote much energy to osmoregulation
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