2.1 - Binary Fission Flashcards
Binary Fission
Is the process of cell replication and division in prokaryotes (and asexual reproduction of prokayotes)
Binary Fission Process
1 - Duplication and separation of genetic material, cell growth and elongation
2 - Continued elongation, formation of the cross wall
3 - Division into two genetically identical daughter cells
Elongation
Is the stage when the RNA strand gets longer
Cell Cycle
To generate a new cell from an existing cell, a cell must grow, duplicate its DNA and divide. This process is governed by the cell cycle
The cell cycle ensures each daughter cell has an accurate copy of DNA, needed to function effectively
Purpose Of Cell Replication And Division
- growth and development
- replacement of dead or damaged cells
- reproduction for unicellular organisms
- asexual reproduction for multicellular organisms
- restoration of the nucleus to cytoplasm ratio
Outcome Of Cell Replication And Division
- after each round of division, two genetically identical daughter cells are produced from each parent cell
- the number of individuals after each round of cell division doubles 1x2ˣ (where ˣ represents the number of division cycles)
- the rate of cell division is influenced by temperature, pH and nutrient availability
Calculating Cell Division
1 - Determine how many cell divisions occur per hour
2 - Multiply this by the number of hours to determine the total number of replication cycles
3 - Calculate 1x2ˣ