Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 5, Problem 2FIB
A membrane that is permeable to some substances but not to others is described as being ________.The movement of a substance through a membrane down its concentration gradient is called ________. When applied to water, this process is called ________. Channels that are specific for water are called _______. The process that moves substances through a membrane against their concentration gradient is called ________.
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Active transport is ____________
movement of water down concentration gradient using a protein channel
movement of materials against their concentration gradient
movement of one substance against, and one substance down their concentration gradients
movement of molecules from high concentration to low concentration using no protein channels
movement of materials down their concentration gradient using a protein channel
The movement of water is called osmosis. Osmosis is the diffusion of water, and it too moves to reach equilibrium.
The relationship between solute concentration and water are opposite. An area with high concentration of solute has less water "concentration", and an area of low solute concentration has a higher water "concentration".
Select the options that describe the movement of water if there is a gradient across a membrane.
Hint:
There are two correct answers. One with the solute perspective and one with a water perspective.
Select all that apply:
Water moves from an area of high solute concentration to an area of low solute concentration.
Water moves from an area of low solute concentration to an area of high solute concentration.
Water moves from an area of high water "concentration" to an area of low water "concentration".
Water moves from an area of low water "concentration" to an area of high water "concentration".
Cotransport is ____________
movement of water down concentration gradient using a protein channel
movement of materials against their concentration gradient
movement of one substance against, and one substance down their concentration gradients
movement of molecules from high concentration to low concentration using no protein channels
movement of materials down their concentration gradient using a protein channel
Chapter 5 Solutions
Biology
Ch. 5.1 - Vicious Venoms Some of the most devastating...Ch. 5.1 - Prob. 1TCCh. 5.1 - Prob. 2CSCCh. 5.1 - Prob. 1CYLCh. 5.1 - diagram and describe the fluid mosaic model of...Ch. 5.1 - Prob. 3CYLCh. 5.2 - Prob. 1CYLCh. 5.2 - Prob. 2CYLCh. 5.3 - What is likely to have happened If, instead of...Ch. 5.3 - Prob. 1HYEW
Ch. 5.3 - Prob. 2TCCh. 5.3 - If a plant cell is placed in water containing no...Ch. 5.3 - Would a cell over use active transport to move...Ch. 5.3 - Prob. 5TCCh. 5.3 - Prob. 1CYLCh. 5.3 - Prob. 2CYLCh. 5.3 - Prob. 3CYLCh. 5.3 - Prob. 6TCCh. 5 - Animal cells are surrounded by________ fluid is...Ch. 5 - Which of the following cannot enter a cell by...Ch. 5 - Prob. 3MCCh. 5 - Prob. 4MCCh. 5 - Prob. 5MCCh. 5 - Prob. 1FIBCh. 5 - A membrane that is permeable to some substances...Ch. 5 - Prob. 3FIBCh. 5 - After each molecule, place the two-word term that...Ch. 5 - Prob. 5FIBCh. 5 - Prob. 1RQCh. 5 - Prob. 2RQCh. 5 - What are the five categories of proteins commonly...Ch. 5 - Prob. 4RQCh. 5 - Define hypotonic, hypertonic, and isotonic. What...Ch. 5 - Describe the following types of transport...Ch. 5 - Prob. 7RQCh. 5 - Prob. 8RQCh. 5 - Prob. 1ACCh. 5 - Predict and sketch the configuration that ten...
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- One system consists of a permeable membrane with an intracellular concentration greater than the extracellular concentration. A second system is a semi-permeable membrane with intracellular concentration less than the extracellular concentration. Describe the solution type for each system. Group of answer choices The permeable membrane is hypotonic, the semi-permeable membrane is isotonic. Both systems are isotonic. The permeable membrane is isotonic, the semi-permeable membrane is hypertonic. The permeable membrane is isotonic, the semi-permeable membrane is hypotonic. The permeable membrane is hypertonic, the semi-permeable membrane is isotonic.arrow_forwardA solution of water and dissolved ions is separated by a selectively permeable membrane that allows the passage of water but not small ions. The concentration of sodium is higher on one side of the membrane than onthe other side. However, there is no net movement of water across the membrane. How is this possible?arrow_forwardOsmosis is _________________ movement of water down its concentration gradient using a protein channel movement of materials against their concentration gradient movement of one substance against, and one substance down their concentration gradients movement of molecules from high concentration to low concentration using no protein channels movement of materials down their concentration gradient using a protein channelarrow_forward
- What determines which way materials move during diffusion and osmosis? a. concentration gradient b. polarity c. crenation d. particle sizearrow_forwardIf the fluid within a cell contains a lower concentration of dissolved solutes compared to the external fluid surrounding the cell, we say that the cellular fluid is ________ relative to the external fluid, and water will ________ the cell. hypertonic / flow into hypertonic / flow out of hypotonic / flow into hypotonic / flow out of isotonic / have the same flow rate into and out ofarrow_forwardif a cell has a net positive charge inside and there is a net negative charge outside the cell, which of the following is correct (if the membrane is permeable to each substance and the concentration of each is the same inside and outside the cell)? a. negative ions will move into the cell b. positive ions will move into the cell c. neutral ions will move into the cell d. negative ions will move our of the cellarrow_forward
- In which situation would passive transport not use atransport protein for entry into a cell?a. water flowing into a hypertonic environmentb. glucose being absorbed from the bloodc. an ion flowing into a nerve cell to create anelectrical potentiald. oxygen moving into a cell after oxygen deprivationarrow_forwardWhen the nerves deliver a signal to contract, Ca++ (calcium ions) rush into the cell. The calcium ion influx causes specialized fibers to contract. Afterward, calcium ions are pumped out of the cell by calcium ATPases. What transport type(s) is occuring?s antiporter only ion gated transport followed by active transport active transport only ion gated transport only active transport followed by ion gated transportarrow_forwardBased on the Movement of Water across a Selectively Permeable Membrane lab, what is a selectively permeable membrane definition? allows small molecules like corn syrup to pass but does not let large water molecules pass allows large molecules like corn syrup to pass but does not let larger water molecules pass allows large proteins like corn syrup to pass but does not let large water molecules pass allows small molecules like water to pass but does not let larger molecules like corn syrup pass *What is throwing me off is the comparison or larger vs smaller moleculesarrow_forward
- Describe the ways in which the membrane is "fluid"arrow_forwardWhen the membrane is at rest, the concentration gradient tends to draw sodium ions ___ the cell, and the electrical gradient draws them ___ the cell. a. into . . . out of b. into . . . into c. out of . . . into d. out of . . . out ofarrow_forwardWhen the membrane is at rest, what are the forces acting on sodium ions?A. Both the concentration gradient and the electrical gradient tend to move sodium ions into the cell.B. Both the concentration gradient and the electrical gradient tend to move sodium ions out of the cell.C. The concentration gradient tends to move sodium ions into the cell, and the electrical gradient tends to move them out of the cell.D. The concentration gradient tends to move sodium ions out of the cell, and the electrical gradient tends to move them into the cell.arrow_forward
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