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WorksheetsDiffusion and Osmosis
Total questions: 10
Worksheet time: 4mins
What does selective permeability means?
The movement of materials through (or across) the cell membrane
The movement of molecules from an area of high concentration to a area of low concentration
The movement of materials across the cell membrane that requires NO ENERGY from the cell.
The ability of the cell membrane to allow some things to pass through while preventing other things from passing through
The movement of water through a semi-permeable membrane from a region of high concentration to a region of low concentration, tending to equalize the concentrations of the water.
Osmosis
Active Transport
Diffusion
Tonicity
Diffusion happens in liquids and gases because their particles move randomly from place to place.
TRUE
FALSE
All of the following statement about tonicity are CORRECT except:
It describes how an intracellular solution can change the volume of a cell by affecting osmosis.
A solution's tonicity often directly correlates with the osmolarity of the solution
A solution with low osmolarity has a greater number of water molecules relative to the number of solute particles
The tonicity of a solution also refers to the effect of a solution on a cell volume
A solution that has a higher solute concentration than another solution wherein water particles will move out of the cell will cause ____________
Lysis
Swelling
Crenation
A solution that has a lower solute concentration than another solution wherein water particles will move into the cell will cause the cell to ______ and eventually ________
shrink; crenate
shrink;lyse
swell; lyse
swell; shrivel
Which of the following statement is NOT TRUE about isotonic solution?
Water particles tend to move into the cell
There is no net movement of water particles
A solution that has the same solute concentration as another solution.
The overall concentration on both sides of the cell membrane remains constant.
In what tonicity of NaCl could the red blood cells submerge?
Isotonic
Hypertonic
Hypotonic
In what tonicity of NaCl could the red blood cells submerge?
10%
0.90%
0.10%
Which of the following NaCl solution is considered as hypertonic?
10%
0.85%
0.10%
