A group of researchers are interested in a question about the osmolarity of the cells of a particular plant species. The team prepared slabs of tissue of this organism and measured the volumes of these tissue slabs. Then, the slabs were submerged in their own solutions of varying sucrose concentrations. After two hours, the slabs were removed from the sucrose solutions, and the percent difference in volume of the slabs was calculated and graphed. The researchers included on the graph a "best fit" line of the data, shown in red here: 15.00 10.00 5.00 0.00 OM sucrose 0.1 M sucrose 0.2 M sucrose 0.3 M sútos 0.4 M sucrose 0.5 M sucrose 0.6 M sucrose -5.00 -10.00 -15.00 -20.00

A group of researchers are interested in a question about the osmolarity of the cells of a particular plant species. The team prepared slabs of tissue of this organism and measured the volumes of these tissue slabs. Then, the slabs were submerged in their own solutions of varying sucrose concentrations. After two hours, the slabs were removed from the sucrose solutions, and the percent difference in volume of the slabs was calculated and graphed. The researchers included on the graph a "best fit" line of the data, shown in red here: 15.00 10.00 5.00 0.00 OM sucrose 0.1 M sucrose 0.2 M sucrose 0.3 M sútos 0.4 M sucrose 0.5 M sucrose 0.6 M sucrose -5.00 -10.00 -15.00 -20.00

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter3: The Plasma Membrane And Membrane Potential

Section: Chapter Questions

Problem 6RE

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Similar questions

A cell develops a mutation in its potassium channelsthat prevents the ions from leaving the cell. If the cell’saquaporins are still active, what will happen to the cell?Be sure to describe the tonicity and osmolarity of thecell.
A solution is ________ when there is low osmolarity outside a cell and overall water moves into the cell. a. hypotonic b. hypertonic c. isotonic
A cell in a hypertonic solution swells because of a net loss of water by osmosis. True False
Given a selectively permeable membrane that is permeableto water but not to a particular solute and given that thereare different solute concentrations on the two sides of themembrane, show the direction of water movement and labelthe side with the higher osmotic pressure.
Define the following terms:a. osmosisb. osmotic pressurec. isotonic solutiond. membrane potentiale. hydronium ion
If the cell membrane was completely permeable the concentration inside the cell would be same as Outside give reason
A 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.
_______ is the net movement of substances from a high concentration to a low concentration medium, whereas the _______ is the net movement of water across a membrane. a. Diffusion- ultrafiltration b. Dialysis-osmosis c. Diffusion-osmosis d. Osmosis-diffusion
Solutes tend to diffuse from a region where they are _______ more/less concentrated to an adjacent region where they are ________ more/less concentrated.
The passive movement of a solute through a membrane protein down its concentration gradient is an example of _________. a. osmosis b. active transport c. endocytosis d. diffusion
When a cell loses volume when immersed in a solution, the best description for thatsolution is:a) hypotonic b) isotonic c) isocraticd) hypertonic
If a culture of Paramecium caudatum had NaCl added to modify extracellular solute concentration, how would the cell react to different solute concentrations what effect does it have osmoregulation? What observation would we expect to see under the microscope?