End of test 1 qt 2 materail Flashcards
what is an isotonic solution?
concentration of solute in the solution= the concentration of dissolved materials inside the cell
what is the goal of an isotonic solution?
equality
what is a hypertonic solution?
concentration of solute outside the cell is higher then the concentration of dissolved materials inside the cell
in which direction is a hypertonic solution moving?
out
what happens to the cell in a hypertonic solution?
the pressure decreases and the cell shrivels
what is plasmolysis?
when an animal cell shrivels up (death of a cytoplasm)
What is another name for plant cell pressure?
turgor pressure
what is a hypotonic solution?
concentration of solute is lower in the solution outside the cell than the concentration of dissolved materials inside the cell
in which direction does the water move in a hypotonic solution ?
in
what happens to the cell that is in a hypotonic solution?
the pressure increases and the cell bursts
what is active transport?
movement of molecules from a low concentration to a high concentration
whats another name for active transport?
solute pumping
What happens during active transport?
nerve cells with sodium (out)- potassium (in) pump
What is bulk transport?
movement of large molecules across the membrane
what is endocytosis?
movement of large molecules into the cell
