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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Which of the following best defines the force known as OsmoticPressure?A. The force that causes sodium to move into and out of cells.B. The force, produced by solutes, that causes water to moveacross/through a permeable membrane toward a compartmentpossessing a relatively higher solute concentration.C. The force responsible for causing blood gases to develop anequilibrium.D. The measurable force that water creates within a blood vessel;pushing out on the walls of the blood vessel and expanding thediameter of the blood vessel.
Compare the values below. Which is greater, or are the two
values equal?
A. Blood osmolarity of a shark
B. Blood osmolarity of a typical marine bony fish
O A is greater than B
O B is greater than A
O the values are equal
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The major role of this electrolyte is to maintain osmotic pressure in the extracellular fluid (ECF).
a. HCO3–
b. Ca2+
c. Na+
d. K+
Chapter 41 Solutions
Biology
Ch. 41.1 - Core Skill: Modeling The goal of this modeling...Ch. 41.1 - Prob. 2CSCh. 41.2 - Prob. 1CCCh. 41.3 - Core Skill: Connections Can negative feedback...Ch. 41.3 - What similar feedforward process might occur in an...Ch. 41.4 - Prob. 1CCCh. 41.4 - Prob. 2CCCh. 41.4 - Prob. 3CCCh. 41.4 - Prob. 4CCCh. 41.4 - What symptoms are sometimes seen in athletes after...
Ch. 41.4 - Prob. 2EQCh. 41.4 - Prob. 3EQCh. 41 - Prob. 1TYCh. 41 - Structures composed of two or more tissue types...Ch. 41 - Prob. 3TYCh. 41 - From an examination of the structure of many...Ch. 41 - Prob. 5TYCh. 41 - The folds, convolutions, or extensions found in...Ch. 41 - Prob. 7TYCh. 41 - Prob. 8TYCh. 41 - Prob. 9TYCh. 41 - Prob. 10TYCh. 41 - Prob. 1CQCh. 41 - Define homeostasis, and give examples of...Ch. 41 - Prob. 3CQCh. 41 - Prob. 1COQCh. 41 - Discuss the organization of animal bodies from the...
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- Some aquatic organisms, when confronted with a changing external osmotic environment, allow the internal (but extracellular) fluid osmotic pressure to follow, or to "match," the external osmotic pressure as it changes. This organism would be classified as a(an) ... A. hyporegulator. B. osmoconformer. C. osmomanipulator. D. hyperregulator. E. osmoregulator.arrow_forwardIncreasing 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.arrow_forwardSolutes tend to diffuse from a region where they ar_____ concentrated to an adjacent region where they are_______ concentrated. a. more, less c. movement is independent b. less, more of concentrationarrow_forward
- Which of the following depend (s) on the presence of electrolytes? a. membrane polarity b. neuromuscular excitability c. maintenance of osmotic relations between cells and ECF d. blood glucose levelsarrow_forwardThe statement that the majority of sodium is contained outside cells tells us that: A. The amount of sodium in extracellular compartment is more than the intracellular one OB. The osmolarity is higher outside cells than inside cells O C. The volume of ECF is more than the ICF D. All of the abovearrow_forwardTo keep the proper concentrations of water and solutes in their blood, freshwater bony fish must drinka. lots of water and excrete large volumes of urine that are hypotonic to body fluids.b. no water and excrete large volumes of urine that are hypotonic to body fluids.c. lots of water and excrete large volumes of urine that are isotonic to body fluids.d. no water and excrete large volumes of urine that are isotonic to body fluids.arrow_forward
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- Which of the following is NOT an ion homeostatically maintained in vertebrates? a. Cl– b. Na+ c. Ca2+ d. Fl–arrow_forwardA young man has burns over 25% of his body, destroying his cells. Which electrolyte is released from the damaged cells, resulting in elevated blood plasma levels? Results from the lab would indicate elevated levels of this common intracellular electrolyte. a. Ca2+ b. K+ c. Na+ d. Cl–arrow_forwardThe osmotic concentration of seawater is approximately 1,000 mOsmol L-¹. Which of the following marine vertebrates can drink seawater without becoming dehydrated? A. A bony fish such as the flounder (maximum urine osmolarity = 340 mOsmol L-¹) B. A marine bird such as an albatross (maximum urine osmolarity ≈ 640 mOsmol L-¹) C. A marine reptile such as a loggerhead turtle (maximum urine osmolarity ≈ 320 mOsmol L-¹) D. A marine mammal such as a whale (maximum urine osmolarity ≈ 1,920 mOsmol L-¹) E. All of the abovearrow_forward
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