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Defend Earth from alien invaders
What size molecules move by diffusion?
High, Low, With
In diffusion, molecules move from _____ concentration to _____ concentration. This movement is _____ the concentration gradient.
What kind of molecules move by osmosis?
High, Low, Selectively Permeable, With
In osmosis, the water molecules move from _____ concentration to _____ concentration through a _____ membrane. This movement is _____ the concentration gradient.
Osmosis is the diffusion of water
How are diffusion and osmosis different?
How does oxygen enter the cells of living organisms?
How does carbon dioxide leave the cells of living organisms?
Do cells use energy to perform osmosis or diffusion?
What term is used o describe the movement of molecules without using energy?
What term is used to describe the movement of molecules using energy?
Does active trasport move molecules with or against the concentration gradient?
What kind of solution has a higher water concentration than inside the cell?
What kind of solution has a lower water concentration than inside the cell?
What kind of solution has a concentration of water equal to that inside the cell?
What kind of solution will not cause damge to cells because no osmosis occurs?
What kind of solution will cause an increase in turgor pressure in a plan?
What kind of solution will cause a plant to wilt?
Water moved out of the egg
What happened to the egg that was placed in the syrup?
In the egg
Was the concentration of water higher in the egg or in the syrup?
What type of solution was the syrup?
Water moved into the egg
What happened to the egg that was placed in pure water?
In the water
Was the concentration of water higher in the egg or in the water?
What type of solution was the pure water?
Yes, Active Transport
In a nerve cell, sodium ions move across the plasma membrane from an area of lower concentration to an area of higher concentration. Does the nerve cell use energy to do this? What type of transport is taking place?
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