BIOLOGY 12TH ED (LL) W/ CONNECT
12th Edition
ISBN: 9781264898091
Author: Raven
Publisher: MCG
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Textbook Question
Chapter 49, Problem 1U
Which of the following is NOT an ion homeostatically maintained in vertebrates?
a. Cl–
b. Na+
c. Ca2+
d. Fl–
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Chapter 49 Solutions
BIOLOGY 12TH ED (LL) W/ CONNECT
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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- 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.arrow_forwardThe major role of this electrolyte is to maintain osmotic pressure in the extracellular fluid (ECF). a. HCO3– b. Ca2+ c. Na+ d. K+arrow_forwardThe figure at right illustrates the relationship between body fluid osmotic concentration and environment osmotic concentration for several aquatic animals. In seawater (ambient osmotic pressure = 1000 mOsm), the shrimp is best described as... A. A hypo-ionic regulator B. A hyperosmotic conformer C. A hypo-osmotic regulator D. A euryhaline conformer E. None of the above Blood osmotic pressure (mOsm) 1500 1000 500 0 0 Green crab Mussel Shrimp 500 1000 Ambient osmotic pressure (mOsm) 1500arrow_forward
- To 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_forwardWhich 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_forwardDichlorodiphenyltrichloroethane ( DDT) is a potent insecticide rarely used today because of its effects on other forms of life. In insects, DDT disrupts sodium channel function, leading to eventual death. Mosquitos have developed resistance to DDT and other insecticides that function in a similar fashion. Suggest two means by which DDT resistance might develop.arrow_forward
- The energy source for movements of Na* and K* during an action potential is a. the Na*/K* ATPase b. the thermal energy in the cell membrane c. the concentration gradients for the ions d. determined by the lipids of the cell membrane e. the negative charge of the extracellular fluid relative to the cytosolarrow_forwardWhich of the following statements describe a characteristic of the human body? a. Under certain conditions your body’s resistance can be low as a few hundred ohms. b. The lower the resistance of your body, the more current that can be forced through it by a given amount of voltage. c. The resistance of your body is lower than the normal when you are wet. d. All of the above. EXPLAINarrow_forwardCompare and contrast the functions of the kidneys and the heart using a table. If both were candidates running for the presidential elections inside your body, which one would choose and why? If you do not want to vote for either the heart or the kidney, which organ would you vote for and why? Think of a way to make your reason more substantial by considering the role of both the heart and the kidneys in blood pressure regulation.arrow_forward
- Hyperkalemia is associated with the inability of the kidneys to properly filter potassium out of the blood. Which type of membrane transport do the kidneys use to filter the blood? A. Hydrostatic pressure B. Osmotic pressure C. Filtration D. Active diffusionarrow_forwardBased on this chart, which way will sodium be pumped? Typical ionic concentrations Squid Giant Axon Frog Sartorius Muscle Intracellular Na+ K+ CI- Extracellular Na+ K+ CI- sodium is a equilibrium into the cell out of the cell 50 397 40 437 20 556 sodium cannot cross the membrane 13 138 3 110 2.5 90 Human Red Blood Cell 19 136 78 155 5 112arrow_forwardIn fish, there is a specialized sensory system known as the lateral line system. This system allow fish to detect movement and pressure in the water around them. In this system, water flows through canals and mechanically displace hair cells that directly allow for the transduction of the signal to the nervous system. Given this information, we would say that this system has transduction. O scolecotropic ionotropic O metabotropic O mesotropiC o o o Oarrow_forward
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