Question

Protoplast does not include
A. Plasma
B. Cell wall
C. Nucleus
D. Cytoplasm

Answer 1

Hint: Protoplast is a plant cell with the plasma membrane. Protoplast allows the fusion of similar or different species and the fused product can generate into the whole plant.

Complete Answer:
Protoplast is a plant cell without a cell wall. This cell wall is commonly removed by the enzyme digestion method. There are two kinds of enzymes significantly beneficial for this method, cellulases, and pectinases. Cellulase enzymes digest the cellulose in plant cell walls while pectinase enzymes break down the pectin holding cells together.

Now, let us find the solution from the option.
- Protoplast also known as a naked plant cell refers to all the components of a plant cell excluding the cell wall.
- Protoplasts refer to the living cell (bacterial cell or plant cell) which lacks a cell wall (removed by enzymatic or mechanical means).
 - The cells are surrounded by the cell membrane or plasmalemma.

Thus, the correct option is B. i.e. Cell wall.

Note: Protoplast is the biologically active and most significant material of cells. Protoplasts and spheroplasts are a changed structure of bacteria or yeast, in which the main shape maintaining structure of the bacteria is fragile. Every bacterium develops a sphere, which is the shape that enables the bacteria to withstand the rigors, particularly osmotic, of the fluid in which it resides.