Structure and Function
Diffusion and Osmosis
Passive Transport
Active Transport
Misc.
100
What the cell membrane is mostly composed of
What are phospholipids
100
Diffusion happens anytime there is a difference in concentration in one place compared to another. This is called what?
What is concentration gradient
100
During passive diffusion, energy is what
What is not required
100
Active transport requires energy in the form of what
What is ATP
100

Substance that is dissolved in a solvent (solution)

What is solute

200
Allows only certain materials to go into and out of cell
What is selective permeability
200
During diffusion, molecules move from a _____ concentration to a ______ concentration
What is high to low concentration
200
What grabs molecules, changes shape, and flips across to the other side like a revolving door
What is carrier protein
200

Powerhouse of the cell that provides ATP

mitochondria

200
Concentration is lower outside than on the inside
What is hypotonic
300
The portion of the cell membrane that does not like water
What are hydrophobic tails
300
Diffusion continues until the concentration is equal in the space.
What is equilibrium
300
What creates a tunnel through which molecules can pass
What are channel proteins
300
Proton pumps use what kind of proteins to move molecules
What is integral proteins
300

When an animal cell bursts

What is cytolysis

400
Cells maintain a stable environment
What is homeostasis
400
The movement of water molecules across a cell membrane
What is osmosis
400
Na+, Cl-, Ca++, and K+ are examples of molecules that go through what kind of channel
What are ion channels
400
With the sodium potassium pump how many of each element is pumped in and out
What is three K+ out and two NA+ in.
400
Pressure exerted by the movement of water during osmosis
What is osmotic pressure
500
A phospholipid is made of a polar group, fatty acid chain, and what else
What is phosphate
500
Proteins that allow water molecules to get past the hydrophobic middle of a membrane
What are aquaporins
500
What is an example we talked about in the notes that is helped by carrier proteins
What is glucose
500
What is the process of releasing things out of cells and the process of taking substances into cells
What is endocytosis and exocytosis
500
Cell body shrinks and pulls away from the cell wall
What is plasmolysis
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