Inhoudsopgave
Table of Contents
Samenvatting celbiologie........................................................................................................................1
Inhoudsopgave.......................................................................................................................................1
1.Pro- en eukaryote cellen..................................................................................................................2
Uni of multicellulair............................................................................................................................4
2.Organellen.......................................................................................................................................5
Organellen..........................................................................................................................................5
De endosymbiose theorie...................................................................................................................9
Mitochondriën....................................................................................................................................9
Chloroplasten.....................................................................................................................................9
Homeostase......................................................................................................................................10
3. De celcyclus..................................................................................................................................10
G0 fase..............................................................................................................................................10
G1 fase (celgroei)..............................................................................................................................10
S fase (DNA replicatie)......................................................................................................................10
G2 fase (cel klaarmaken voor mitose)..............................................................................................11
M fase (mitose/meiose en cytokinese).............................................................................................11
Apoptosis.........................................................................................................................................12
4. DNA opbouw en replicatie............................................................................................................14
DNA replicatie...................................................................................................................................18
Mitose en meiose.............................................................................................................................20
5. Genexpressie................................................................................................................................20
Het centrale dogma..........................................................................................................................20
DNA mutaties...................................................................................................................................22
Transscriptie.....................................................................................................................................23
Chromatine veranderingen...............................................................................................................25
Transcriptie van een gen..................................................................................................................27
6. differentiatie.................................................................................................................................28
Differentiatie....................................................................................................................................28
7. Weefsel.........................................................................................................................................31
8. Oncologie......................................................................................................................................37
Kenmerken van tumorcellen............................................................................................................39