Ch 3: Cell Biology Flashcards
 what is the inside space of a cell membrane?
Intracellular
What is the space outside the cell membrane
Extracellular
What is phospholipids
A bilayer with polar heads facing interior and exterior of the cell
What is cholesterol?
Interspersed among phospholipids
What is cytoplasm
Contains organelles
What is the nucleus
Contains DNA
What is cytoplasm
Space in Cell
What is cytosol?
Fluid in cytoplasm
What are cadherins?
Attach cells to other cells
What are intergrins?
Integral proteins that attach to extracellular molecules
What is a non-gated ion channels?
Always open
What is a gated ion channels
Open/close by stimuli
What is another name for carrier proteins
Transporters
What is a uniporter
Moves one particle
What is a symporter?
Moves two particles in the same direction and same time
What is an antiporter?
Moves two particles in opposite directions at the same time
What are the three components of the cytoskeleton?
- microtubules - made up of tubulins
- microfilaments
- intermediate filaments
What’s another name for simple diffusion
Passive diffusion
What is simple diffusion
Movement of solutes through semi permeable membranes
What is facilitated membranes
The presence of protein carriers
What is active transport?
Using ATP to accumulate substances
What is osmosis?
Movement of water through semi permeable membranes
What is solute
Substance added to solvent that dissolves in a solvent
What is the order of movement through plasma membranes
- Simple diffusion
- Facilitated memebrane
- Active transport
- Osmosis
