Terms in this set (23)
what is the cell membrane made of?
the cell membrane is...
which way does diffusion cause particles to move?
higher to lower
What requires energy (ATP) to transport molecules against a concentration gradient?
Does a cell use energy when molecules diffuse in or out of the cell down the concentration gradient?
Amount of substance in a certain place
moves particles like oxygen into cells
moves water into and out of a cells
Allows some substances through
selectively permeable membrane
Causes a cell to swell
causes a cell to swell and causes osmosis
causes osmosis and causes a cell to shrink
Transport protein that provides a tubelike opening in the plasma membrane through which particles can diffuse
Is used during active transport but not passive transport
process by which a cell takes in material by forming a vacuole around it
particle movement from an area of higher concentration to an area of lower concentration
process by which a cell expels wastes from a vacuole
a from of passive transport that uses transport protiens
particle movement from an area of lower concentration to higher concentration
transport protien that changes shape when a particle binds with it
has a cell membrane, contains DNA, has cytoplasm, ribosomes
has a nucleus, endoplasmic reticulum, golgi apparatus, lysosomes, vacuoles, mitochondria, cytoskeleton
what part of the cell allows it to take in nutrients and water?
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