Structure Of Prokaryotic Cells and Viruses Flashcards
1
Q
what type of cells are smaller?
A
prokaryotic cells
2
Q
what does the cytoplasm of prokaryotic cells lack?
A
membrane bound organelles
3
Q
what type of cell has smaller ribosomes?
A
prokaryotes have smaller ribosomes (70s) than eukaryotes (80s)
4
Q
what do prokaryotes have instead of a nucleus?
A
single circular DNA (free to move in cytoplasm)
5
Q
what does the cell wall of a prokaryote contain?
A
murein (glycoprotein)
6
Q
what are viruses?
A
acellular and non-living
7
Q
what is the structure of a virus?
A
- genetic material (either RNA or DNA)
- attachment proteins
- capsid (protein coat)
8
Q
why are viruses acellular?
A
- they don’t have a cell surface membrane
9
Q
why are viruses non-living?
A
- they don’t have metabolic reactions
10
Q
what do most prokaryotic cells have?
A
- flagella
- capsule surrounding the cell
- plasmids
