BIOLOGICAL CLASSIFICATION
KINGDOM PROTISTA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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False
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True
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Either A or B
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None of the above
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Detailed explanation-1: -Euglena lacks a cell wall. Instead, it has a pellicle made up of a protein layer supported by a substructure of microtubules, arranged in strips spiraling around the cell.
Detailed explanation-2: -Diatoms are unicellular algae that are well-known for the spectacular design of their cell walls. The di-atom cell wall is made of amorphous, hydrated silici-umdioxide (silica) which is associated with proteins and polysaccharides.
Detailed explanation-3: -Euglena lacks a cell wall. Instead the cell is surrounded by proteinaceous strips spiralling around the cell. The strips are supported by microtubules, and together are referred to as the pellicle (Sommer, 1965).
Detailed explanation-4: -In diatoms, the cell wall forms a thin overlapping shell that fit together like a soap box. Diatoms belongs to chrysophytes.