different between carbohydrate vs zymosan

English

From their general formula C_n(H₂O)_n; they were once thought to be hydrates of carbon.

carbohydrate (plural carbohydrates)

(organic chemistry, nutrition) A sugar, starch, or cellulose that is a food source of energy for an animal or plant.
Synonyms: (informal) carb, saccharide; see also Thesaurus:carbohydrate
(colloquial, by extension, metonymically) Any food rich in starch or other carbohydrates.

zymosan (countable and uncountable, plural zymosans)

(biochemistry) an insoluble carbohydrate, obtained from the cell walls of yeast, used in the bioassay of blood serum

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