Question

A plant cell without cell wall is called
A)Proplast
B)Protoplast
C)Nucleoplasm
D)Explant

Answer 1

Hint: Plant cells are in many ways different from animal cells. Their shapes are quite varying from that of an animal cell. A plant cell is composed of a cell wall followed by the cell membrane and cell organelles. Though most of the organelles of a typical plant cell are similar and identical to that of animal cells, there are some of the exceptions present.

Complete answer:
A plant cell is majorly composed of a cell wall, that is composed of cellulose, hemicellulose, pectin etc. and a few exclusive cell organelles like plastids, chloroplasts, and large vacuoles. They do not show the presence of the centrosomes needed in animal cells during cell division. The cell wall plays a major role in the cell to cell communication and provides shape to the cell to form tissues and also in plant-microbe interaction.

Now let us find solution from given options:
Proplast : Proplast is referred to as a highly porous substance that is composed of Teflon fluorocarbon (PTFE) fibre base.
Protoplast : Protoplast is the development obtained from stripping off the cell wall from an whole plant cell by chemical, mechanical, or enzymatic action, leaving behind the intact cell with the plasma membrane.
Nucleoplasm : The matrix of the nucleus of any cell is termed to be as nucleoplasm. It is composed of chromatin fibres (chromosomes), nucleolus and several enzymes and protein.
Explant : The explant is referred to as a culture technique used in biology to culture cells develops a piece or pieces of tissue or organ removed from a plant or animal organs typically.

Hence, the correct answer is option (B)

Note: The enzymes that are needed for cell wall extraction to produce protoplast are cellulase, pectinase, xylanase. The specialized pathway that is required for intercellular communication in cell walls is termed as plasmodesmata.