Life Cycle Notes

• Which form of Naegleria fowleri is known to exist in humans?a)Flagellate trophozoite formb) Ameboid trophozoite formc) Spore form

  d)Cyst form

  Ameboid trophozoite form
• How does replication occur in ameboid trophozoites of N. fowleri?

   Binary fission
• Under what conditions do ameboid trophozoites of N. fowleri transform into flagellate trophozoites?

   In contaminated water
• What happens to flagellate trophozoites of N. fowleri in vitro?

  They lose their flagella and convert back into the ameboid form
• Where is the cyst form of N. fowleri found?

   In contaminated water
• Where does the entire life cycle of N. fowleri occur?

  In contaminated water
• How do humans primarily contract N. fowleri?

  Swimming in contaminated water
• Through which route do ameboid trophozoites of N. fowleri enter the human body?

  Nasal mucosa
• What is the result of N. fowleri infection in the brain?

   Rapid tissue destruction
• Besides swimming in contaminated water, how else can N. fowleri infections occur?

   Inhaling dust infected with N. fowleri