Prokaryotic Cells Flashcards
Organelles & their functions
1
Q
Cytoplasm
A
The internal fluid component of the cell.
2
Q
Nucleoid
A
The region of the cytoplasm where the DNA is located
3
Q
Plasmids
A
Autonomous circular DNA molecules that may be transferred between bacteria
4
Q
Ribosomes
A
Complexes of RNA and protein that are responsible for polypeptide synthesis
5
Q
Cell membrane
A
Semi-permeable and selective barrier surrounding the cell
6
Q
Cell wall
A
Rigid outer covering made of peptidoglican; maintains the shape and prevents bursting lysis.
7
Q
Slime capsule
A
A thick polysaccharide layer used for protection against dessication (drying out)
8
Q
Flagella
A
Long, slender projections containing a motor protein that enables movement
9
Q
Pili
A
Hair-like extensions that adhere to the surfaces or medicate bacterial conjugation.
