Biochemistry - Binary Fission Flashcards
What are the different types of growth bacteria can undergo?
Binary Fission
Budding
Hyphal Growth
Cell Divsion
What is the process of Binary Fission?
Doubling of cell mass, division at the middle producing two daughter cells.
Cell Cycle
The events of a cell between formation of a new cell and formation of the next one.
Cytokinesis
The seperation of a cell into two daughter cells.
What happens to the chromosome during formation of new bacterial cells?
It compacts and rearranges such that two are in opposite halves of the cell.
Replisome
A protein carryign out DNA replication from the Ori site.
What happens after chromosomal segregation?
They undergo replication by the replisome.
What is the process of septation
Selection of septum-forming site
Z ring Assembly
Linking of Z ring to PM
Assembly of cell wall synthesising machinery
Cell construction then septum formation
Z- Ring
A cytoskeletal component analogous to the contractile ring in eukaryotic cells.
What are the components of the Z-Ring?
FtsZ, FtsA, ZapA and ZipA and FtsK
FtsZ
A tubulin resembling protein providing points of anchor for membrane constriction and septation.
What is the most abundant Z ring protein?
Ftsz
What is FtsZ mid-line localisation dependent on?
MinCDE system and Nucleoid Occlusion
MinCDE System
This prevents FtsZ polyermisation near parts of the PM.
Nucleoid Occlusion
This prevents chromosome from being bisected during septum division
