Biology Cellular Transport Chapter 7

28 terms by lmartello

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Biology

hypertonic

there is a GREATER concentration of solute molecules OUTSIDE the cell than inside

hypotonic

there is a LOWER concentration of solute molecules OUTSIDE the cell than inside

isotonic

there is the SAME concentration of solute molecules outside the cell as inside

hypo

the swelling and bursting of animal cells when water enters happens when a cell is placed in a ____________ tonic solution.

hyper

The shrinking of plant cells when water leaves so the cell membrane pulls away from the cell wall or shrinking of animal cells happens when a plant celll is placed into a ________tonic solution.

solute

The substance that dissolves to make a solution is called the_______

down with the concentration gradient

during diffusion molecules tend to move_______

dynamic equillibrium

when the concentration of solute inside & outside a cell is the same, the cell has reached

osmosis

the diffusion of water across a selectively permeable membrane is called

mitochondria

energy for active transport comes from a cell's _______

active

______ transport requires energy from ATP to move substances across membranes

an area of high concentration to an area of lower concentration

when molecules move DOWN the concentration gradient it means they're moving from _________

energy

active transport requires __________ to move molecules across membranes

ATP

_____ is the molecules that provides the energy for active transport

Mitochondria

the cell organelles that burns glucose and provides ATP for active transport are the ______________

osmosis

water moves across membranes by ____________

vacuole

a small membrane sac used to transport substances during exocytosis & endocytosis_________

passive

__________ transport does NOT REQUIRE energy

isotonic

a cell placed in an ______________ solution neither swells or shrinks because the concentration of molecules outside the cell is the same as inside

hypertonic

a solution in which there is a HIGHER concentration of molecules OUTSIDE the cell than inside ____________

hypotonic

a solution in which the concentration of molecules outside the cell is LOWER than inside

down

when molecules move form high to low along a concentration gradient we say they are moving ________ the gradient

faciliated diffusion

a form of passive transport that uses transport proteins

endocytosis

process by which a cell takes in material by forming a vacuole

exocytosis

process by which a cell expels wastes from a vacuole

protein ion pump

transport protein that changes shape when a particle binds with it

channel protein

transport protein that provides a tubelike opening in the plasma membrane through which particles can diffuse

osmatic

_______ pressure is caused by water inside a plant cell pushing against the cell wall

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