Cell division

Question 1

What is binary fission and the stages of it?

Answer 1

variety of interlinked processes.

1) cell elongates and DNA replicates. elongates to a set maximum size before initiation of division)

Different bacterial sizes in different strains.

2) cell wall and membrane divide
3) cross-wall forms completely around divided DNA.
4) cells separate (septation and division)

Not all cells fully separate.

Question 2

Describe cell wall structure

Answer 2

The cell wall is a sacculus made of peptidoglycan.

Peptidoglycan is sugar chains around the cell; each linked by short polymers of amino acids