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Q. A protoplast is a cell:

NTA AbhyasNTA Abhyas 2020Cell : The Unit of Life

Solution:

Plant cell - cell wall = Protoplast
Protoplast is a biological term proposed by Hanstein in 1880 to refer to the entire cell, excluding the cell wall, but currently has several definitions: a plant, bacterial or fungal cell that had its cell wall completely or partially removed using either mechanical or enzymatic means.