LABORATORY REVIEW
DIFFUSION AND OSMOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Carbon dioxide will move into the cell.
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Carbon dioxide will move out of the cell.
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Oxygen will move into the cell.
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Oxygen will move out of the cell.
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Detailed explanation-1: -If a cell contains 3% carbon dioxide that can cross the cell’s membrane and is put into a solution of 2% carbon dioxide, what do you predict will happen to the carbon dioxide? The solution is hypertonic, water will flow out of the cell and the cell will shrink.
Detailed explanation-2: -An animal cell has a 2% percent salt concentration. It is placed into a solution with a 0.05% salt concentration. Water will move out of the animal cell, causing it to shrivel.
Detailed explanation-3: -Gases like carbon dioxide and oxygen can move across the cell membrane via diffusion. Diffusion is the movement of gas molecules from a region of higher concentration, to a region of lower concentration through a semi-permeable membrane.
Detailed explanation-4: -Carbon dioxide (CO2) movement across cellular membranes is passive and governed by Fick’s law of diffusion.
Detailed explanation-5: -Gases like carbon dioxide and oxygen cross the membrane by the process of diffusion and move from the region of higher concentration to that of lower concentration across the cell membrane.