Water
What is the chemical formula for water?
H2O
What kind of bond does water have between the 2 Hydrogens and 1 oxygen?
Polar covalent
what is the movement of water molecules across a selectively permeable membrane from an area of higher water concentration to an area of lower water concentration.
Osmosis
The type of bond that is formed when electrons were shared equally
non-polar covalent bond
the substance that is dissolved (like salt or sugar).
Solute
What is the property of water that makes it special compared to some other molecules?
Polarity
What kind of bond does polarity make possible
Hydrogen
How is osmosis different than diffusion
osmosis is specific to water
the movement of particles from an area of high concentration to an area of low concentration.
Diffusion
a solution with a higher concentration of solutes compared to the cell, causing water to leave the cell.
Hypertonic Solution
What does H2 mean?
Two Hydrogens
What property allows bugs to sometimes walk on water?
Surface tension
what would happen if an animal cell was placed in pure water with no ions?
the cell would swell until it bursts
a barrier that allows some substances (like water) to pass through but not others.
Semi-permeable membrane
a solution with a lower concentration of solutes compared to the cell, causing water to enter the cell.
Hypotonic
Which side of water has a positive charge
The Hydrogen side
why is water polar?
Because the oxygen molecule pulls harder on the electrons making the oxygen more negative
what would happen to a cell that is placed in a hypertonic solution
The cell would shrivel
the difference in the amount of a substance between two areas.
Concentration gradient
a solution with the same solute concentration as the cell, resulting in no net water movement.
Isotonic
Which side of water has a negative charge?
The oxygen side
NO
Why is osmosis important to living things
It maintains turgor pressure and allows for hydration
the substance that dissolves other substances (in osmosis, usually water)
Solvent
when an animal cell bursts due to excess water intake in a hypotonic solution.
Cytolysis