Microbiology Exam 1 pt 3

Question 1

Plasmids

Answer 1

“extra” DNA that cells can pick up in the right conditions
Often exist outside the Chromosome
Episome: Plasmid that is integrated into the
Cell
Often offer an advantage to the cell

Question 2

Transcription/ Tanslation

Answer 2

Same as Eukaryotes, but can occur simultaneously

Question 3

Cell Division

Answer 3

DNA replication is coordinated with opposite sides of the cell
Meiosis does NOT occur
Septation complete cell divison
FtsZ in Bacteria and Archaea

Question 4

Motility

Answer 4

Pili: Straight filaments of pillin protein
Sex Pilus
Twitching motility
Fimbriae: Used during attachment
Flagellum
Monotrichous: one flagella
Amphitrichous: single flagella at both
ends
Lophotrichous: several flagella on each
end
Peritrichous: random flagella around the
cell
Chemotaxis: “run and tumble”
Endospores: help protect cell from death in
unfavorable conditions