SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Loss of water through active transport
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Loss of water through diffusion
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Gain water through protein channels
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Gain water through osmosis
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Detailed explanation-1: -Answer. Osmosis is the movement of water through a plasma membrane from a region of low concentration to a region of high solute concentration. Here, the protozoan loses water when its put in a solution of lower water concentration as water always move from high concentration to low concentration.
Detailed explanation-2: -The action of osmosis can be very harmful to organisms, especially ones without cell walls. For example, if a saltwater fish (whose cells are isotonic with seawater), is placed in fresh water, its cells will take on excess water, lyse, and the fish will die.
Detailed explanation-3: -In biology, osmosis is the movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules, through a cell’s partially permeable membrane.