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Bio Transport

QuestionAnswer
the basic structure of all cell membranes is the lipid bilayer
in addition to lipids, most cell membranes contain ??? that run through the cell membrane protein
form chains that are attached to the outer membrane, which plays a role in cell identification carbohydrates
the life process that passes materials across a cell membrane is called transport
occurs when materials cross the membrane without the cell using its own energy passive transport
requires cellular energy to move materials across a membrane active transport
is a type of passive transport that occurs when molecules from an area of high concentration to an area of lower concentration diffusion
when a substance passes through a cell membrane it is called permeable
when a substance cannot pass through a cell membrane it is called impermeable
one factor that affects membrane permeability is size of the molecules
movement of water through a selectively permeable membrane osmosis
??? diffuses through a selectively permeable membrane from an area of higher concentration of water to an area of lower concentration water
in this environment, the concentration of water is higher outside of the cell hypotonic
What direction will water diffuse in a hypotonic environment? into the cell
in this environment, the concentration of water is lower outside of the cell hypertonic
What direction will water diffuse in a hypertonic environment? out of the cell
in this environment, the concentration of water is the same inside and outside of the cell isotonic
What direction does water diffuse in an isotonic environment? both in and out of the cell
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