| active transport | movement of particles against the concentration gradient (low to high), requires ATP as well as Transport/carrier proteins |
| what are transmembrane proteins | Intrinsic/integral proteins that span the whole phospholipid bilayer |
| what can phospholipids form | Micelle - sphere
Bilayer
Lysosome - sphere within sphere, con contain substances inside |
| fluid mosaic model | fluid- Phospholipid and protein molecules can move around in the bilayer
Mosaic- Different protein molecules are scattered |
| how thick is phospholipid bilayer | 7nm |
| what is the middle bit of phospholipid bilayer called | hydrophobic core |
| how to differentiate between glycoprotein and glycolipid | proteins are connected to a protein, and glycolipid is connected to phospholipid |
| role of cholesterol in phospholipid bilayer | controls fluidity |
| Extrinsic proteins in phospholipid bilayer | Peripheral protein
Inner or outer surface
Can be bound to intrinsic proteins, phospholipids, and molecules on the inside/outside of the cell |
| what are proteins embedded into phospholipid bilayer called | intrinsic/intergral protein, can be inside or outside. can span the whole membrane, called transmembrane proteins |
| what are proteins lying on the surface of the phospholipid bilayer called | Peripheral protein |
| carrier proteins | They can change shape of the molecule to allow it to diffuse out the other way |
| what are transmembrane proteins | Intrinsic/integral proteins that span the whole phospholipid bilayer |
| how do bacteria and yeasts affect the fluidity of their phospholipid bilayer | change temperature |
| Conformational change | When the molecule changes shape inside of a binding site of a carrier protein |
| what is the size of membranes | 7nm |
