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?

  Plasmids contain non-essential genes.
• 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 replicate before division?

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

  Plasmids are arranged randomly between cells.
• 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?

  Every 20 minutes.
• What is the result of bacterial population doubling?

  The population grows exponentially.
• How many bacteria are produced after five hours if they double every 20 minutes?

  Over 250,000 bacteria.
• How do you calculate the number of division cycles in three hours?

  Divide 180 minutes by mean division time.
• If a bacterial cell divides every 30 minutes, how many cells after three hours?

  64 cells after three hours.
• What does mean division time refer to?

  Average time it takes to divide.
• What factors affect the mean division time of bacteria?

  Species and environmental conditions.
• How many cells are produced from 1,000 bacteria after four hours?

  4,096,000 cells.
• How do you calculate division cycles for 240 minutes?

  Divide 240 minutes by division time.
• What is the result of multiplying 1,000 by $2^{12}$?


  4,096,000 cells.
• What are the steps involved in binary fission?

  1. Bacterial cell grows larger.
  2. Replicates its DNA and plasmids.
  3. DNA strands move to opposite sides.
  4. New cell wall forms down the middle.
  5. Cell divides into two new cells.
• What conditions favor optimal bacterial growth?

  • Warm temperatures
  • Moist environments
  • Abundant nutrients
• What is the significance of binary fission in bacterial reproduction?

  • It allows rapid population growth.
  • It is a form of asexual reproduction.
  • It enables survival in favorable conditions.