THE CELL
TRANSPORT INTO AND OUT OF THE CELL
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Oxygen going from a low to high concentration in cells
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water moving from high to low concentration in cells
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Carbon dioxide moving from high to low out of cells
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A large molecule moving into a cell by fusing with the plasma membrane creating a vacuole
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Detailed explanation-1: -Answer and Explanation: An example of diffusion is c. passage of oxygen from the alveoli to the blood. Diffusion is the process by which a molecule moves from an area of high concentration to an area of low concentration, and it usually occurs across some sort of membrane.
Detailed explanation-2: -Osmosis is a type of simple diffusion in which water molecules diffuse through a selectively permeable membrane from areas of high water concentration to areas of lower water concentration.
Detailed explanation-3: -Oxygen and carbon dioxide both use diffusion to move into and out of cells in the lungs.
Detailed explanation-4: -Oxygen and carbon dioxide will flow according to their pressure gradient from high to low. Therefore, understanding the partial pressure of each gas will aid in understanding how gases move in the respiratory system.
Detailed explanation-5: -CO2 is gaseous molecule and hence it moves in and out of the cell freely by simple diffusion. Diffusion is a process in which the molecules interact and move from a region of higher concentration to a region of lower concentration.