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Biology Cellular Transport Chapter 7
there is a GREATER concentration of solute molecules OUTSIDE the cell than inside
there is a LOWER concentration of solute molecules OUTSIDE the cell than inside
there is the SAME concentration of solute molecules outside the cell as inside
the swelling and bursting of animal cells when water enters happens when a cell is placed in a ____________ tonic solution.
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.
The substance that dissolves to make a solution is called the_______
down with the concentration gradient
during diffusion molecules tend to move_______
when the concentration of solute inside & outside a cell is the same, the cell has reached
the diffusion of water across a selectively permeable membrane is called
energy for active transport comes from a cell's _______
______ 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 _________
active transport requires __________ to move molecules across membranes
_____ is the molecules that provides the energy for active transport
the cell organelles that burns glucose and provides ATP for active transport are the ______________
water moves across membranes by ____________
a small membrane sac used to transport substances during exocytosis & endocytosis_________
__________ transport does NOT REQUIRE energy
a cell placed in an ______________ solution neither swells or shrinks because the concentration of molecules outside the cell is the same as inside
a solution in which there is a HIGHER concentration of molecules OUTSIDE the cell than inside ____________
a solution in which the concentration of molecules outside the cell is LOWER than inside
when molecules move form high to low along a concentration gradient we say they are moving ________ the gradient
a form of passive transport that uses transport proteins
process by which a cell takes in material by forming a vacuole
process by which a cell expels wastes from a vacuole
protein ion pump
transport protein that changes shape when a particle binds with it
transport protein that provides a tubelike opening in the plasma membrane through which particles can diffuse
_______ pressure is caused by water inside a plant cell pushing against the cell wall