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100
When particles tend to move from an area where they are more concentrated to an area where they are less concentrated it is called
diffusion
100
Structures on the cell membrane that allow water to diffuse across the cell membrane in osmosis are called
aquaporins
100
a substance that is dissolved in a solvent to make a solution is called a
solute
100
an animal cell in a____________ solution will fill up and swell with water
hypotonic
100
the process of taking materials into the cell by means of infoldings, or pockets, of the cell membrane is called
endocytosis
200
Does diffusion require the cell to use energy?
No
200
A membrane that allows a substance to pass through it is said to be ___________________________ to that substance
permeable
200
a substance in which a solute is dissolved to form a solution is called a
solvent
200
an animal cell in a____________ solution will shrink and release water
hypertonic
200
When extensions of cytoplasm and the cell membrane surround a particle and package it within a food vacuole, it is called
phagocytosis
300
Can all substances diffuse across the cell membrane?
No
300
A membrane does not allow a substance to pass through it is said to be________________________ to that substance
impermeable
300
two solutions separated by a selectively permeable membrane that have equal concentrations of the solution on both sides of the membrane are said to be
isotonic
300
an animal cell in a____________ solution will keep its same shape with equal amounts of water on both the inside and outside of the cell
isotonic
300
Tiny pockets form along the cell membrane, fill with liquid and pinch off to form vacuoles within the cell it is called
pinocytosis
400
Diffusion of water through a selectively permeable membrane is called
Osmosis
400
Membranes that allow some substances to pass through them and some substances not to pass through them are said to be
selectively permeable
400
two solutions separated by a selectively permeable membrane that have higher concentrations of the solution on the outside of the membrane are said to be
hypertonic
400
The movement of specific molecules across the cell membrane through protein channels without the use of energy is called
facilitated diffusion
400
when the membrane of a vacuole surrounding material to be expelled from a cell fuses with the cell membrane and forces the contents out of the cell it is called
exocytosis
500
Name at least one molecule or substance that can diffuse through the lipid bilayer of the cell membrane
Oxygen and Carbon Dioxide
500
The mass of solute in a given volume of solution or mass divided by volume is call
concentration
500
two solutions separated by a selectively permeable membrane that have lower concentrations of the solution on the outside of the membrane are said to be
hypotonic
500
a process that moves materials across the cell membrane against a concentration difference that requires energy
Active Transport
500
Why does active transport require energy, while diffusion, osmosis and facilitated diffusion do not require energy
Active transport moves materials against the concentration gradient or from an area of lesser concentration to an area of greater concentration, which is the opposite of diffusion