Final Exam Chapter 9 & 10 Flashcards
1
Q
Structure of the nuclear envelope
A
- Separates nucleus from cytoplasm
- Home to transcription and RNA progressing in Eukaryotes
- Consists of inner, outer membranes and lamina
2
Q
Nuclear Pore Complex
A
- Only routes into the nucleolus
- Small molecules diffuse freely
- macromolecules are selectively transported to nucleolus or cytoplasm
3
Q
Selective Transport of proteins to and from nucleus
A
- Contain localization signals recognized by pore receptors
- Protein named Ran determines direction and movement through the pores
4
Q
Transport of RNA
A
mRNA, ribosomal RNA and transfer RNA are exported from nueclous for protein synthesis
5
Q
Chromosome organization and gene expression
A
- Interphase nucleolus with transcriptionally inactive hetero chromatin
- chromosomes occupy distinct territories
6
Q
Endoplasmic reticulum and protein secretion
A
Proteins for secretion, lysosomes or plasma membrane are transferred to rough ER
7
Q
Organization of the Golgi
A
- Protein processing and sorting
- From Ed to cis Golgi to Golgi network
