Active Transport
Active Transport requires the cell to use what to get things in and out?When things leave the cells in vesicles that fuse with the membrane
energy
Anything that moves from high to low concentration
diffusion
Water loving
hydrophilic
What are the 2 main components of the cell membrane
Proteins and phospholipid
What is facilitated diffusion
Molecules passing through carrier or channel protein w/o energy
When things leave the cells in vesicles that fuse with the membrane
exocytosis
What solute environment do cells try stay in so that they can maintain homeostasis
isotonic
Another name for the “cell” membrane
plasma
If you put an animal cell in fresh water it will burst because it is a ___________ environment
Hypotonic
The tails of phospholipids are hydrophobic or hydrophilic
hydrophobic
Cell eating
phagocytosis
How does oxygen and carbon dioxide get across the membrane
Simply diffuses
The phospholipid stack up by twos with their tails touching creating this name the phospholipid ______.
bilayer
What is it called when a cell explodes
cytolysis
A proton pump is used in photosynthesis, what type of transport is this?
active
Where does active transport move things from low to high concentration across the membrane (up the hill”)
Protein pumps
Things move from high to low concentration until when
equilibrium
The outside of a vessicle is coated with this
membrane
What environment is created when you gargle salt water when you are sick
hypertonic
Describe what happens in cotransport?
1 molecule passes by the diffusion of a molecule that has been pumped against gradient
What is the main source of energy used in the cell (like a battery) small and convenient
ATP
The amount of solute in a given volume of a solven
concentration
Pumps and channels are all made of this
protein
Name 2 ways cells deal with osmosis
Isotonic, contractile vacuole, turgor pressure
Give an example from this chapter of how a cell does homeostasis
varies