Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
23 Cards in this Set
- Front
- Back
|
Phospholipids |
Two fatty acid hydrophobic tails. Phosphate group is the hydrophilic head |
|
|
Cholesterol |
Maintains fluidity |
|
|
The proteins in plasma membrane may provide a variety of major cell functions |
Transport, enzymatic activity, signal transduction, intercellular joining, cell-to-cell recognition, and attachment to the cytoskeleton and extracellular Matrix |
|
|
Attachment to the cytoskeleton and extracellular Matrix |
Helping cell to hold on |
|
|
Intracellular joing |
Holding two cells together in addition . Proteins holding on together |
|
|
Cell to cell |
Neighboring cells work together |
|
|
Signal transduction |
Waiting for a signal to come help them |
|
|
Enzymatic activity |
Enzymes doing reactions |
|
|
Transport |
Move things across the membrane |
|
|
Diffusion |
Because molecules are moving eventually they'll fill available space |
|
|
Concentration gradient |
Molecules will cross the barrier randomly until both Solutions have reached equilibrium |
|
|
Hypertonic |
Higher concentration |
|
|
Hyptonic |
Lower concentration |
|
|
Isontonic |
Equalibrium |
|
|
Osmosis |
If the particles can't moves in the water will move to reach equilibrium. water move towards hypertonic |
|
|
Diffusion |
When molecules are little and hydrophobic they can get across the membrane on their own |
|
|
Facilitated diffusion |
Needs a helper protein to cross the membrane. (Passive transport. Going down concentration gradient does not take energy from cell) |
|
|
Active transport |
Takes energy from cell. Goes opposite of what they want |
|
|
Exocytosis |
Large things leaving the cell. Vesicle merges with the cell membrane and spits contents outside of cell |
|
|
Endocytosis |
Coming into cell |
|
|
Phagocytosis |
Bringing food into cell |
|
|
Pinocytosis |
Bringing liquid into cell |
|
|
Receptor mediated endocytosis |
Cell communication tells it to do so |
