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Does the tail on a bilayer face inward or outward?
Inward
Does the head on a bilayer face inward or outward?
Outward
Is the head on a bilayer hydroliphic or hydrophobic?
Hydroliphic
Is the tail on the bilayer hydroliphic or hydrophobic?
Hydrophobic
Do hydrophobic tails move away from water?
Yes
What is the concentration gradient?
The difference between molecules across a āspaceā
What direction do molecules follow in the concentration gradient during diffusion?
High to low
What direction do they move during active transport?
Low to high (against the gradient)
What type of transport requires energy?
Active
Which type of transport moves against energy?
Passive transport
What happens when you put a cell into a hypertonic solution?
It will shrink
What happens when you put a cell into a hypotonic solution?
It will swell
What happens when you put a cell into an isotonic solution?
It will be neutral
What is the best environment for a cellā homeostasis?
An isotonic solution?
What would happen if someone received an IV bag full of pure water?
They would die because their cells would burst due to too much water in their cells and it would be a hypotonic solution
What would happen to the cell if the solution had more solute than water, the cell had more water than solute and the water was moving out of the cell?
It would be a hypertonic solution and the cell would shrivel
What would happen if there was more water than solute in the solution, more solute than water in the cell and the water was moving into the cell?
The cell would swell and it would be a hypotonic solution
What would happen if there was more solute in the cell and more solute in the solution, but the water moved into the cell?
The cell would burst
What does it mean for a cell to be in equilibrium?
The concentration of solutes and water is balanced inside and outside of the cell
What PH value did water represent?
8.2
What value did vinegar represent?
6.7
Note 
Flashcard (29)