BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 5, Problem 6U
Summary Introduction
Introduction: The movement of materials across the biological membrane may occur either passively or actively. Simple diffusion, osmosis, and facilitated diffusion are the three major types of passive transport. Osmosis is defined as the movement of water or other solvents through a plasma membrane from a region of low concentration of solute to a region of high concentration of solute, tending to equalize the solutes concentration.
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Students have asked these similar questions
You fill a bag made of
semipermeable membrane with a .5 mol/litre solution of sugar, seal it and immerse it into a .3mol/litre solution of salt and water. Which description best fits what will happen.
1) The environment is hypertonic to the contents, so the bag will shrink as water leaves the bag.
2)The environment is hypotonic to the contents, so the bag will expand as water enters the bag.
3) The environment is hypertonic to the contents, so the bag will expand as water enters the bag.
4) The environment is hypotonic to the contents, so the bag will shrink as water leaves the bag.
You are working with cells that have an internal solute concentration of 5mM solute. This solute is large and ionized. You place them in a medium that has a concentration of 7.7 mM solute. What will happen? (More than one answer may be applicable)
a.
The cells will swell initially, then return to their original size.
b.
The cell will burst.
c.
The cells will shrink in size.
d.
I do not expect anything to happen.
Which of the following will occur when a cell is placed into a hypertonic solution?
A. The cell will swell up as water comes through the membrane into the cell.
B. Nothing will happen and the cell will stay the same size.
C. The cell will shrivel as water leaves the cell.
Chapter 5 Solutions
BIOLOGY
Ch. 5.1 - Prob. 1LOCh. 5.1 - Explain the fluid mosaic model of membrane...Ch. 5.2 - List the different components of phospholipids.Ch. 5.2 - Prob. 2LOCh. 5.2 - Prob. 3LOCh. 5.3 - Illustrate the functions of membrane proteins.Ch. 5.3 - Prob. 2LOCh. 5.3 - Prob. 3LOCh. 5.4 - Compare simple diffusion and facilitated...Ch. 5.4 - Prob. 2LO
Ch. 5.4 - Prob. 3LOCh. 5.5 - Prob. 1LOCh. 5.5 - Prob. 2LOCh. 5.5 - Prob. 3LOCh. 5.6 - Distinguish between endocytosis and exocytosis.Ch. 5.6 - Illustrate how endocytosis can be specific.Ch. 5 - According to the fluid mosaic model, membranes are...Ch. 5 - Prob. 2IQCh. 5 - The fluid mosaic model of the membrane describes...Ch. 5 - What chemical property characterizes the interior...Ch. 5 - The transmembrane domain of an integral membrane...Ch. 5 - The specific function of a membrane within a cell...Ch. 5 - The movement of water across a membrane is...Ch. 5 - Prob. 6UCh. 5 - Which of the following is NOT a mechanism for...Ch. 5 - A bacterial cell that can alter the composition of...Ch. 5 - What variable(s) influence(s) whether a nonpolar...Ch. 5 - Which of the following does NOT contribute to the...Ch. 5 - How are active transport and coupled transport...Ch. 5 - A cell can use the process of facilitated...Ch. 5 - figure 5.5 describes a classic experiment...Ch. 5 - Each compartment of the endomembrane system of a...Ch. 5 - The distribution of lipids in the ER membrane is...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Compound Sodium Lactate is isotonic solution. this mean that it a. reduces movement of sodium across the membrane b.prevent movement of water across the semi permerable cell membrane c. promotes movement of water out of the cell d. facilitates equal movement of water across the semi permerable cell membranearrow_forwardThe membrane in the diagram above is not permeable to the sugar in the solution, however it is permeable to water. Which of the following statements would best describe what will happen? Select ALL that apply. [mark all correct answers]a. Sugar molecules will move to side A until the concentrations on both sides are equal.b. There will be no change since the membrane is not permeable to the sugar molecules.c. Sugar molecules will move to side A at the same rate as the water molecules will move to side B.d. Water molecules will move to side B until the concentrations on both sides are equal.arrow_forwardA cell containing 2% sucrose solution is placed in a hypertonic solution. A.) In one statement maximum, explain what a hypertonic solution is in reference to solute concentration. B.) In one statement, predict the direction of osmosis ( movement of water) C.) In one statement, predict the resulting change in the cell's shape.arrow_forward
- Your friend notes that Gatorade has electrolytes like sodium and potassium chloride. He figures that if a few electrolytes are good for you, then a lot must be even better. Following this logic, he adds nearly a tablespoonful of salt to his Gatorade. What kind of solution is his Gatorade now (hypotonic, isotonic, or hypertonic)? What will likely happen to his cells if he drinks this liquid?arrow_forwardWhich of the following can most easily pass through the phospholipid bilayer of the cell plasma membrane without the involvement of proteins? A. small non-polar molecules B. small polar molecules C. large non-polar molecules D. large polar moleculesarrow_forwardOsmosis is water movement across a semipermeable membrane. Which of the following is true about water movement across cell membranes? A. In a hypotonic solution, cells will swell. B. In an isotonic solution, cells will shrink. C. In a hypertonic solution, cells will stay the same. D. Cells can neither shrink nor swell because water cannot penetrate the plasma membrane.arrow_forward
- Compare two types of membrane transport proteins by completing the blanks below. a) ATP Needed or Not Needed? - Carrier Protein: Pump Protein: b) Move Materials Following or Against Concentration Gradient? - Carrier Protein: - Pump Protein:arrow_forwardMelvin, ace biology student, is making a display for Ms. Fishhawk's class to show what "isotonic," "hypertonic" and "hypotonic" mean. Melvin has a tank where the two sides are separated by a semi-permeable membrane. The figure shows the solutions that Melvin pours into each side of the tank. 30% starch 70% water A 5% starch 95% water B a. Label the figure to show which side is the hypertonic side and which is the hypotonic side.arrow_forwardWhich of the following is true about motion of membrane lipids? A. They can move most rapidly when in the gel phase. B. Lateral diffusion is catalyzed by flippase proteins. C. To increase the fluidity of membranes at low temperatures, cells synthesize more saturated fatty acids and fewer unsaturated fatty acids. D. Transbilayer diffusion involves the transfer of lipids from one face of the bilayer to another.arrow_forward
- What is osmosis? a. the process where water diffuses across the cells' membrane from an area of lower water concentration to an area of higher water concentration b. Where a solute diffuses across the cell membrane from an area of higher to lower concentration c. the process where water diffuses across a cells' membrane to an equal concentration of water on both sides of the membrane d. The process where a solute diffuses into water through membranous sacks not using energyarrow_forwardA cheek cell is placed in a 0.5% sugar solution A. The 0.5% sugar solution is hypotonic/isotonic/hypertonic to the cells (select one and type your answer below). Explain your choice! B. Describe in which direction you expect water to move in the question above (into the cell / no net movement/ out of the cell) (select one and type your response in the space below).Explain your answer. Include the percentages of solute and solvent in areas inside and outside of the cell and how you determine the direction of water movement from the percentages!arrow_forwardGlucose is often present in very low concentrations in environments populated by microorganisms. To import the maximum amount of available glucose, cells use a. Receptor-mediated endocytosis b. Simple diffusion c. Osmosis d. Facilitated diffusionarrow_forward
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The Cell Membrane; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=AsffT7XIXbA;License: Standard youtube license