L15 - Cell Cycle

Question 1

Purpose of cell cycle:

Answer 1

To copy genome and equally separate amongst daughter cells.
For the organism to grow to full adult size.
To maintain the total number of cells in organism.
To replace damaged cells.

Question 2

Prokaryotic cell cycle:

Answer 2

Prokaryotes divide by binary fission.

DNA is attached to membrane and replicates. Cell enlarges.
Septum forms and DNA separate as cell divides into two. Cells separate.

Question 3

DNA replication in prokaryotes:

Answer 3

DNA replication and cytokinesis must be carefully regulated.