Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
physiology-cell
Stack #187900
| Question | Answer |
|---|---|
| Townes and Holtfreter experiment, and what it implies | like cells from different embryos aggregate, adhere together. implies cell recognition, cell adhesion |
| __ folding of peptide in transmembrane domain | alpha helix |
| glycocalyx responsible for | cell recognition (ABO blood types), cell adhesion |
| types of CAM (cell adhesion molec) | 1.cadherin - homophilic binding 2.integrin - heterophilic binding |
| how to dissociate cell | remove Ca2_, or add trypsin |
| spatiotemporal distribution | lose CAM to migrate, re-express CAM to group into ganglia |
| cell junctions | occluding (tight junction), anchoring , gap |
| types of anchoring junction | 1. adherens - cell-cell or cell-matrix E-cadherin @ catenin attached to F-actin 2. desmosome - cell to cell catenin attached to non contractile IF. 3. hemidesmosome - cell to basal lamina |
| 1 gap junction is | 2 connexon, (6 * 2 connexin) |
| facilated diffusion passive or active | passive |
| difference between facilitated diffusion and simple diffusion through channels | both passive, but facilitated diffusion has a binding site |
| what diffusions are carrier mediated | facilitated diff, primary, secondary active |
| effect of insulin on glucose transpoter | increase number of Glut4 |
| Glut 4 is an example of what kind of transport | facilitated diffusion |
| facilitated diffusion move molec against/down conc't grad | down |
| co-transport also called | symport |
| counter-transport also called | antiport |
| example of co-trasport in kidney | gluc and Na+ moving into cell from lumen of nephron |
| example of counter-trasport in kidney | Na+ move into cell and H+ out to lumen of nephron |
| fluid endocytosis called | pinocytosis |
| during endocytosis phagosome fuse with | lysosome |
| during pinocytosis pinocytic vesicle fuses with | endosome |
| pseudopod formed during phago or pinocytosis | during phagocytosis |
| rheumatoid arthritis | autoimmune disorder causes release of lysosomal content into joints |
| lysosomal storage disorder | tay sach, missing lipase in lysosome => accum of FA in brain |
| receptor mediated endocytosis (special pinocytosis) | 1.clathrin bdd to vesicle 2.clathrin removed 3.vesicle bdd to endosome |
| what kind of molec taken in by receptor mediated endocytosis | LDL |
| autocrine cell affect | itself |
| paracrine cell affects | target cell |
| where does RNA polymerase bind to | promotor region |
| exons are | expressed genes |
| introns are | garbage ie not expressed |
| familial hypercholesterolemia | LDL receptor defective, high LDL in blood causing atherosclerosis |
| intracellular protein made in | free ribosome |
| protein destined for secretion made in | RER |
| protein destined for integration into membrane made in | RER |
| co-translational modification | translation starts in free ribosome. signal sequence binds SRP(signal recognition particle) which takes the complex to ribosome on RER, where translation is continued. |
| how does steroid hormone (lipid soluble ligand) bring about intracellular response? | steriod diffuse accross PM, and bdd to intracellular receptor. the receptor-ligand complex moves into the nucleus, where it will act as a transcription factor. |
| subunit of MF | actin |
| subunit of MT | alpha, beta tubulin |
| what is the strongest cytoskeletal filament | microtubule |
| what forms a hollow filament | MT |
| IF forms | nuclear lamina |
| MT radiates from | centromere |
| dynein moves tward __ this is called | -ve, reterograde |
| kinesin moves toward __ this is called | +ve, anterograde |
| what acts as a track for dynein, kinesin | MT |
| endothelial cells of nephron held together by | tight junction |
| integrin | heterophilic CAM |
| cadherin | homophilic CAM |
Created by:
honghee
Popular Physiology sets