how does the reproduction take place in amoeba under favourable and unfavourable conditions?

Asked by nathsantanukumar | 10th Apr, 2018, 04:54: PM

Expert Answer:

Reproduction in Amoeba under favourable conditions:

  • Amoeba reproduces primarily by binary fission.
  • Binary fission is the division of the parent cell.
  • When the organism matures, it grows in size. Its nucleus duplicates.Cytoplasm divides in the middle.
  • A single parent organism gives rise to two identical daughter organisms.

Reproduction in Amoeba under unfavourable conditions:

  • A method known as multiple fission is adopted by the unicellular organism Amoeba to survive and reproduce under unfavourable conditions.
  • When the conditions are unfavourable, Amoeba withdraws its pseudopodia and becomes almost round.
  • It secretes a hard covering called cyst. The cyst forms a thick protective coat around it.
  • Inside the cyst, the nucleus undergoes repeated divisions to form many nuclei.
  • Nuclear division is followed by the division of cytoplasm. 

Answered by Sheetal Kolte | 10th Apr, 2018, 06:33: PM