Pyrenoid sentence example

pyrenoid
  • When carbon-assimilation is active, starch-granules crowd upon the surface of the pyrenoid and completely obscure it from view.

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  • Sometimes several pyrenoids occur in each chloroplast, as in Mesocarpus and Spirogyra; sometimes only an occasional chloroplast contains pyrenoid at all, as in Cladophora.

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  • They are composed of a homogeneous proteid substance, and often contain albuminoid or proteid crystals of the same kind as those which form the pyrenoid.

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  • The pyrenoid seems to be of proteid nature and gelatinous consistency, and to arise as a new formation or by division of pre-existing pyrenoids.

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