Download - Membranes and Molecular Movement
MEMBRANES AND MOLECULAR MOVEMENT
Animal cell
Plant Cell
Lipid Molecule
Water -loving
Fat-loving
TYPES OF MEMBRANES
Impermeable= Impossible to pass Permeable= Permission to pass
Semi-permeable=Some can pass.
Membrane Proteins
Large Molecules
Membrane Proteins
Mem
bra
ne
MOLECULAR MOVEMENT
Osmosis is the movement of WATER from high to low concentration.
Diffusion is movement of solid molecules (solutes) from high to low concentration.
Flies = representing water molecules
Bird= Representing sugar molecules
Small
LARGE
Cell membrane (CAGE)
TYPES OF CONCENTRATIONS
Isotonic -Iso means (same). The cell is in a normal state. Same amount of water and solutes in and out of the cell.
Hypotonic - The cell swells because more water
goes in the cell. Less solutes outside of the cell, high concentration of solutes in the cell, so water moves in.
Hypertonic- The cell shrinks because water leaves the cell. High concentration of solids on the outside of the cell, so the cell loses water and shrinks.
water
water
waterwater
Cell SWELLS
Cell stays the SAME
Cell Shrinks
ANIMAL CELL
PLANT CELL
Isotonic Hypotonic Hypertonic
Isotonic Hypotonic Hypertonic