| what does the hydrophobic tail mix readily with | lipids |
| what are glycolipids | hydrophillic, covalently bonded with the hydrophobic tail |
| transport proteins about hydrostuff pt1 | have amino acids wit hydrophobic R groups that face the internal hydrophobic core of the bi layer, the other end opposite |
| why is it called fluid mosaic | fluid because the phospholipid and proteins can move relative to one another --> flexible structure, constantly changing shape
mosaic because the proteins vary in shape and size and patterns (scattered) |
| what does the cholesterol do | prevents passage of disabled polar molecules and ions across the membrane
reduces lateral movement of phospholipid |
| what is the phospholipid impearmeable to | ions (charged particles) |
| what are histone proteins | highly basic (alkalaic) |
| what do the length of the telomeres determine | the life span of the cell
cells that keep the ability to divide by mitosis have a mechanism to add more bases to the end of chromosmes |
| mitosis is not.... | the process that repairs but replaces cells |
| what are adult stem cells | undifferentited, which can produce more more differentiated cells |
| what do animal cells contain only | glyocogen granules, cilia, microvilli |
