EVERYDAY SCIENCE

SCIENCE

BOTANY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is a protoplast?
A
The cell membrane and all its contents.
B
A cell well.
C
The hole where the living part of the cell used to be.
D
Where plastids come from.
Explanation: 

Detailed explanation-1: -Protoplasts are cells with the plasma membrane, cytoplasm and nucleus, which have had their cell wall removed by the action of enzymes. Cellulase enzymes digest the cellulose in plant cell walls while pectinase enzymes break down the pectin holding cells together.

Detailed explanation-2: -In plant cells the protoplast, or living material of the cell, contains one or more vacuoles, which are vesicles containing aqueous cell sap. Plant cells are also surrounded by a relatively tough but elastic wall.

Detailed explanation-3: -Protoplast refers to a cell that doesn’t possess a cell wall. Protoplast is comprised of the plasma membrane, cytoplasm, and cell organelles. The cell wall can be removed the certain enzymes such as cellulase and pectinase. Protoplasts are commonly used for research purposes.

Detailed explanation-4: -: one that is formed first : prototype. : a plant cell that has had its cell wall removed. also : the nucleus, cytoplasm, and plasma membrane of a cell as distinguished from inert walls and inclusions.

Detailed explanation-5: -Protoplasts are the cells of which cell walls are removed and cytoplasmic membrane is the outermost layer in such cells.

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