Osmolarity

Week 3 flashcards

Osmolarity

number of particles in solution in comparison to number of particles in the cell

High Concentration

more particles in the liquid (solution) the darker it is

Low concentration

less particles in the liquid the lighter it is. Lower concentration has more water

Concentration Gradient

Usually from high to low concentration. Need active transport to go from low to high concentration

Hydration levels

the state of the body in terms of amount of water present in blood and cells

Dehydration levels

-More concentrated levels in blood

-cells will shrink when water leaves the cell

-go into blood

Symptoms of dehydration

usually due to net loss of water through waste & high levels of salt

Symptoms: reduced cognition, lack of thermoregulation, exhaustion, reduced muscle power, headaches, nausea

Overhydration levels

More water and less concentrate

Due to intake of lots of water and a salt deficiency

Overhydration symptoms

symptoms include nausea, swelling, headaches, and seizures/comas

iso-osmotic

same number of particles in as cell (300)

hyper-osmotic

more particles in solution than in the cell

hypo-osmotic

less particles in the solution than in cell

isotonic

cell remains the same shape

hypertonic

cell will crenate or shrink

hypotonic

cell will swell or lyse