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Question

Which of the following groups of organisms have a protein rich layer called pellicle?

A
Chrysophytes
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B
Euglenoids
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C
Dinoflagellates
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D
Slime moulds
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Solution

The correct option is B Euglenoids
Euglenoids are unicellular flagellate protists. They are without the cell wall. The body is covered by thin and flexible pellicle which is a protein-rich layer. The pellicle has oblique but parallel stripes called myonemes. The pellicle is composed of fibrous elastic protein, the small amount of lipid and carbohydrates and maintains a definite shape. It is flexible enough to permit temporary changes in the body shape.

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