Question

Students were observing a film on
Paramoecium. It underwent a process
of reproduction. Teacher said it is due
to cell division. But students objected
and said that there was no disappearnce
of nuclear membrane and no spindle
formation, how can it be cell division?
Can you clarify?​

Answer 1

Answer:

reproduction in paramecium is through binary fission

Explanation:

During reproduction, the macronucleus splits by a type of amitosis, and the micronuclei undergo mitosis. The cell then divides transversally, and each new cell obtains a copy of the micronucleus and the macronucleus.

(macro - large , micro - small )

Answer 2

In this case, the paramecium didn't undergo cell division. It underwent reproduction by the process of binary fission.

Additional Information :

The type of reproduction that paramecium undergoes is asexual type by the process of binary fission.

In this method, the macronucleus which is present in paramecium gets splitted by amitosis process. The micronuclei of the paramecium undergoes meiosis to get divided.

After that, the cell gets transversally divided and then the new cells gets the copy of micronucleus and the macronucleus.

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