BIOLOGY(LL)-W/ACCESS CODE >CUSTOM<
12th Edition
ISBN: 9781264058167
Author: Raven
Publisher: MCG CUSTOM
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Chapter 49.1, Problem 2LO
Summary Introduction
To classify: Organisms depending on their osmotic regulation.
Introduction: Osmosis refers to the process of diffusion of water molecules across a semipermeable membrane. This movement of water molecules typically occurs to a less dilute solute from a more dilute solute. The osmotic pressure denotes the measure of the solution’s tendency to gain water molecules through osmosis. A solution’s tonicity indicates the measure of its ability to alter the cell’s volume through osmosis. An animal cell takes in water in a hypotonic solution, excretes water in a hypertonic solution, and no net exchange of water is observed when placed in an isotonic solution.
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Chapter 49 Solutions
BIOLOGY(LL)-W/ACCESS CODE >CUSTOM<
Ch. 49.1 - Prob. 1LOCh. 49.1 - Prob. 2LOCh. 49.2 - Identify the relative toxicity and solubility of...Ch. 49.3 - Prob. 1LOCh. 49.3 - Define reabsorption and secretion.Ch. 49.4 - Prob. 1LOCh. 49.4 - Explain the role of the loop of Henle in the...Ch. 49.5 - Prob. 1LOCh. 49.5 - Prob. 2LOCh. 49.5 - Prob. 3LO
Ch. 49.6 - Prob. 1LOCh. 49.6 - Prob. 2LOCh. 49 - Prob. 1DACh. 49 - Which of the following is NOT an ion...Ch. 49 - Prob. 2UCh. 49 - A sharks blood is isotonic to the surrounding...Ch. 49 - An important function of the excretory system is...Ch. 49 - Which of the following is a function of the...Ch. 49 - Humans excrete their excess nitrogenous wastes as...Ch. 49 - An osmoregulator would maintain its internal...Ch. 49 - Prob. 1ACh. 49 - A viral infection that specifically interferes...Ch. 49 - Diuretics are drugs that can be used to treat high...Ch. 49 - Caffeine inhibits the secretion of ADH. Prior to...Ch. 49 - You and your study partner want to draw the...Ch. 49 - You are studying renal function in different...Ch. 49 - Prob. 1SCh. 49 - Johns doctor is concerned that Johns kidneys may...
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- Define osmosis and describe varying osmotic conditions.arrow_forwardA cell develops a mutation in its potassium channel that prevents the ion from leaving the cell. If the aquaporins are still active what happens to the cell?arrow_forwardDescribe at least one adaptation that allows a) planktonic organisms such as diatoms or jellyfish to stay in the photo zone (where light penetrates the water), and b) marine birds to thrive in the salt marsh/tidal environment.arrow_forward
- Discuss how some organisms maintain steady internal conditions.arrow_forwardList various types of transport and give example of each in biologyarrow_forwardThe major difference between active and passive transport is that ACTIVE TRANSPORT? a) moves things down their concentration gradients. b) uses membrane proteins called channels. c) requires energy. d) doesn t require energy. e) requires water molecules.arrow_forward
- Illustrate by using a diagram: How transport happens in bacterial cells and predict how they will react when exposed to various pressures present in the host or their environmentarrow_forwardDifferentiate between (a) Osmotic Pressure and Osmotic Potential(b) Imbibition and Diffusionarrow_forwardUsing all the vocabulary words below, explain why the bolded lines are correct and what would happen internally if you relied on salty ocean water for survival. Osmosis Balance Compartment Cell Water Permeability Membranearrow_forward
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