Prokaryotic Cells Flashcards
1
Q
What are prokaryotes?
A
Single-celled organisms
2
Q
Prokaryotic cell organelles
A
- Murein cell wall
- Cell membrane
- Circular coil of DNA
- 70s ribosome
- Flagellum*
- Capsule*
- Plasmids*
3
Q
Plasmid function
A
Contain genes for things like antibiotic resistance, and can be passed between prokaryotes
4
Q
Capsule function
A
Helps protect the cell from attack by cells of the immune system
5
Q
Binary fission process
A
- Circular DNA replicates once and both copies attach to the cell membrane at opposite poles
- Plasmid(s) replicate
- Cell membrane grows and cytoplasm begins to divide
- New cell walls begin to form
- Two genetically identical daughter cells produced (each has one copy of the circular DNA, but can have a variable number of copies of the plasmid)
