How do bacteria divide?

• What is binary vision primarily about?

  Binary vision is about binary fission
• What type of organisms undergo binary fission?

  Prokaryotic organisms like bacteria
• How does binary fission differ from mitosis and meiosis?

  Binary fission occurs in prokaryotic cells
• What structures do bacterial cells have?

  Cell wall, cell membrane, cytoplasm, DNA
• What is the function of plasmids in bacteria?

  Contain non-essential genes for bacteria
• What is a flagellum in bacteria?

  A tail used for movement
• Why is binary fission considered a type of reproduction?

  It divides one organism into two organisms
• What are the two main steps before binary fission occurs?

  Growth and replication of genetic material
• What does a bacterial cell need to replicate before division?

  Its large circular strand of DNA
• How are plasmids distributed during binary fission?

  They are arranged randomly between offspring
• What happens to the cell wall during binary fission?

  A new cell wall grows down the middle
• How quickly can some bacteria divide under optimal conditions?

  Once every 20 minutes
• What is the result of bacterial population doubling?

  One cell becomes two, then four, etc.
• How many cells would result from one cell doubling six times?

  64 cells
• What does mean division time refer to?

  Average time it takes for a cell to divide
• How do you calculate the number of division cycles in three hours?

  Divide 180 minutes by mean division time
• What is the formula to find the number of cells after multiple divisions?

  Original cell × $2^n$
• What factors affect the mean division time of bacteria?

  Species and environmental conditions
• How many cells will be in a petri dish after four hours if it starts with 1,000 bacteria?

  4,096,000 cells
• How do you calculate the number of division cycles in four hours?

  Divide 240 minutes by division time
• What is the total time in minutes for four hours?

  240 minutes
• What are the steps involved in binary fission?

  1. Growth of the bacterial cell
  2. Replication of DNA and plasmids
  3. Separation of DNA strands
  4. Formation of a new cell wall
  5. Division into two new cells
• What are the optimal conditions for bacterial growth?

  • Warm temperature
  • Moist environment
  • Plenty of nutrients
• What is the relationship between division time and bacterial population growth?

  • Shorter division time leads to faster growth
  • Longer division time slows down population increase