Why does the structure of the plasma membrane make this type of transport necessary for fluids

the food storage products of chrysophytes are oils or the polysaccharide laminarin.   formerly classified as plants, the chrysophytes contain the photosynthetic pigments chlorophyll a and c all but the yellow-green algae also contain the carotenoid pigment fucoxanthin.

segmented body, an exoskeleton made from chitin, and joint appendages.

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