Structure and Function
Diffusion and Osmosis
Passive Transport
Active Transport
Misc. (Lab Preview)
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 in which a solute is dissolved
What is solvent
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

Active transports help move molecules ...

Against concentration gradient

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 transport
What is hydrogen ions
300
When cells shrink and shrivel
What is crenation
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
Proton pumps use what kind of proteins to move molecules
What is integral proteins
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 of a sugar that we used in the membrane simulator which is helped by carrier proteins

What is glucose

500

With the sodium potassium pump how many of each element is pumped in and out

What is three Na+ out two K+ in

500
Cell body shrinks and pulls away from the cell wall
What is plasmolysis
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