Key Terms
The movement of water molecules through the cell membrane
osmosis
The total concentration of an environment must always equal ___________%
100
What is the universal solvent?
water
"Hypo-" means
"less than"
Osmosis is a type of ______________ transport.
passive
Only allowing some things to enter into the cell through the cell membrane
semipermeable or selectively permeable
A cell has a concentration of 10% NaCl. What is the concentration of water in the cell?
90%
The part of a solution that is dissolved
solute
When the concentration of water is equal inside and outside the cell, the solution is __________________.
isotonic
Osmosis moves water molecules __________ the concentration gradient.
down; with
The type of transport protein that only moves water into the cell
aquaporin
A cell with 35% sugar is placed in 100% pure water. What is the water concentration of the cell?
65%
If there is a solution with a high solute concentration, the water concentration will be (low/high).
low
Which type of solution has a low solute concentration?
hypotonic solution
If a cell is placed in a hypertonic solution, the cell will ___________.
shrink
The difference in concentration between one area and another
concentration gradient
A cell with 35% sugar is placed in 100% pure water. Is the cell in a hypotonic, hypertonic, or isotonic solution?
hypotonic
A student pours 30 grams of salt into 50 mL of water. What is the solute?
30 grams of salt
When cells are in a hypotonic solution the cells will burst or ___________.
lyse
Animal cells thrive best in _____________ solutions, while plant cells survive best in _______________ solutions.
isotonic; hypotonic