Protoplasts do not contain:
Correct answer: C. Cell wall
- A. Cell wall and cell membrane
- B. Cell membrane
- C. Cell wall
- D. Cytoplasm
Explanation
Protoplasts are those cells that have their cell wall removed. The cell wall is removed by the action of digestive enzymes like cellulase and pectinase. Cellulase enzyme breaks down the cellulose in the cell wall whereas pectinase digests pectin. A cell that has its cell wall removed appears spherical in shape. The protoplast consists of the cell's nucleus, cytoplasm and plasma membrane.
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Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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