Cells Flashcards
1
Q
What is unique to prokaryotes?
A
- No true nucleus –> nucleoid
- Simple/less complex than Eukaryotes
- Lack membrane-bound-organelles
- Single-celled (unicellular)
- e.g., bacteria and archae
2
Q
What is unique to Eukaryotes?
A
- They HAVE a true nucleus+membrane -bound organelles
-Multi-celullar(more complex) - e.g., plants, animals, fungi
3
Q
What are shared characteristics of Eukaryotes and Prokaryotes?
A
- Cell membrane controls movement of materials into and out of the cell
- Contain DNA as genetic material
- Both use energy
4
Q
What are the three type of protein filaments?
A
- Microtubules
- Intermediate filaments
- Actin filaments
5
Q
What three filaments provide shape and structure to a cell?
A
- Microtubules
- Intermediate filaments
- Actin filaments
6
Q
Describe Microtubules
A
- Long, hollow cylindrical structures
- Dynamic instability
7
Q
Describe Intermediate filaments
A
- Intermediate in size
- Form twisted, rope like structure
8
Q
Describe Actin filaments
A
- Also known as microfilaments
- Long, thin fibers
