front 1 Phospholipids are the most | back 1 Abundant lipid in the plasma membrane |
front 2 Phospholipids are amphipathic molecules, containing? | back 2 hydrophobic and hydrophilic regions. |
front 3 What does the fluid mosaic model state? | back 3 that a membrane is a fluid structure with a "mosaic of various proteins embedded in it. |
front 4 Cellular Membranes are made of what? | back 4 Proteins and lipids |
front 5 Phospholipids in the plasma membrane can move | back 5 within the bilayer |
front 6 Most of the lipids and some proteins | back 6 drift laterally |
front 7 Rarely does a molecule | back 7 flip-flop transversely across the membrane. |
front 8 As temperatures cool,membranes | back 8 switch from a fluid state to a solid state |
front 9 What depends on the types of lipids? | back 9 the temp at which a membrane solidifies |
front 10 Membranes rich in unsaturated fatty acids are? | back 10 are more fluid than those rich in saturated fatty acids |
front 11 Membranes must be what to function properly? | back 11 Fluid (usually about as fluid as salad oil) |
front 12 The steroid cholesterol has different effects on what? | back 12 Membrane fluidity at different temperatures |
front 13 At warm temperatures (such as 37c) | back 13 cholesterol restrains movement of phospholipids |
front 14 At cool temperature it maintains fluidity by | back 14 preventing tight packing |