Structure & Function
Passive Transport
Active Transport
Diffusion & Osmosis
Random
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
Active transport requires energy in the form of what
What is ATP
100
During passive diffusion, energy is what
What is not required
100

One of the following transport proteins that only carriers out active transport

What are protein pumps

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

The movement of molecules pushed against their concentration gradient with the use of ATP and pump proteins.

What is Active Transport

200
What grabs molecules, changes shape, and flips across to the other side like a revolving door
What is carrier protein
200

Function of transport proteins in the cell membrane

What is assist molecules in getting across the cell membrane.

300
The portion of the cell membrane that does not like water
What are hydrophobic tails
300
What creates a tunnel through which molecules can pass
What are channel proteins
300

Proton pumps transport

What is hydrogen ions

300
Diffusion continues until the concentration is equal in the space.
What is equilibrium
300

Protein channels use what transport

What is passive transport
400
Cells maintain a stable environment
What is homeostasis
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
The movement of water molecules across a cell membrane
What is osmosis
400

Protein pumps use what transport

What is active transport

500
A phospholipid is made of a polar group, fatty acid chain, and what else
What is phosphate
500

The movement of molecules from an area of high to low concentration with the use of transport and channel proteins

What is Facilitated diffusion.

500

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

What is three K+ out and two NA+ in.

500
Proteins that allow water molecules to get past the hydrophobic middle of a membrane
What are aquaporins
500

In facilitated diffusion, the carrier protein changes shape, but the energy for this change comes from the molecule moving ___

What is down

M
e
n
u