How can we help?
You can also find more resources in our
Select a category
Something is confusing
Something is broken
I have a suggestion
What is your email?
What is 1 + 3?
the movement of water molecules from an area of high concentration to low concentration
the substance dissolved in a liquid
contains a high level of concentration relative to the cell
contains a low level of concentration relative to the cell
contains the same concentration of solute relative to the cell
A homogeneous mixture of two or more substances
Uniform in structure or composition throughout
A membrane that will let some substances through, but not others
the death of a cell by bursting
A two-layered arrangement of phosphate and lipid molecules that form a cell membrane, the hydrophobic lipid ends facing inward and the hydrophilic phosphate ends facing outward.
the movement of molecules from an area of higher concentration to an area of lower concentration
the maintenance of stable internal conditions despite changes in the surroundings
water loving phosphate head
a substance that dissolves another substance
results from loss of water and loss of pressure in the plants cells.
the pressure that water molecules exert against the cell wall.
Aquatic plant with translucent (see-through) leaves that grows in fresh water ponds
The movement of materials through a cell membrane without using energy
movement of molecules across a membrane requiring energy to be expended by the cell
function of cell membrane
controls what enters and leaves the cell
1.Separates a cells content from the exterior environment 2.Regulates the transport of materials in and out. 3. Aides in the protection of the cell
Major content of Cell Membrane
Transports materials across membrane (Salts, Oxygen, Water, Sugar and Amino Acids)
Keeps cell membrane fluid (If were not in membrane there would be no diffusion)
Recognizes stuff outside the cell
Letting certain substances diffuse through, while at the same time preventing other substances from entering the cell.
Oxygen, Salts, Amino Acids, Water, Sugar
Molecules that enter
Urea, Carbon Dixoide
Molecules that leave
Process by which molecules move from areas of higher concentrations go to lower concentrations
When diffusion is equal on both sides
Molecules move across a membrane
Diffusion of water across a membrane
Transportation of molecules across a membrane with the help of a integral protein
Substance being dissolved in a solution
Substance doing the dissolving in the solutions; universal solvent is water
The solution with the greater concentration of solutes
Solution of equal solute concentrations
Movement of substance from low to high
Celluar absorption of molecules outside the cell by regions of the cell membrane
Taking in a large molecule (eating it)
Taking in small particles and dissolve ions
Expulsion of celluar material through the membrane using a vacuole