Michael grows the same bacteria in 20 Petri dishes. He places 10 of the dishes in a container with a normal atmosphere (normal oxygen levels). The remaining dishes he places in a
container in which the oxygen level is double the normal level. He labels the first group "A"
and the second group "B".

What is the independent variable, the dependent variable, what were the constants in the name experiment?

18. determine whether each stateme blank space given. ach statement is true (t) or false (f). place your answer in the 8. when a cell is put into an isotonic solution, individual wat put into an isotonic solution, individual water molecules cannot move back and forth across the cell membrane. d. when a cell is put into a hypertonic solution, there is a net movement of water molecules across the cell membrane into the cell. c. when a cell is put into a hypotonic solution, there is a net movement of water molecules across the cell membrane out of the cell. d. the movement of any solvent across a semi-permeable membrane is called osmosis. e. carrier proteins have the ability to change shape and physically move molecules across the cell membrane. f. in facilitated diffusion, the concentration of the molecules to be moved across the cell membrane is higher inside the cell.