Who observed that plants are composed of different kinds of cells?

Who proposed the name $Sarcode$ for protoplasm?

What was the contribution of the scientists Schleiden and Schwann in $1838$?

Select the statements which are related to Schwann.
$(i)$ He reported that cells have a thin outer layer which is today known as plasma membrane.
$(ii)$ Cell wall is a unique character of the plant cell.
$(iii)$ Body of plants and animals are composed of cells and products of cells.

The concept that new cells arise from pre-existing cells was proposed by whom?

Who first coined the term 'cell'?