... surface markers are needed for relations with other cells - think of problems with organ transplant rejection as one small example. By definition, all cells contain cytoplasm. Cytoplasm is everything inside the cell membrane and outside the nucleus (or DNA containing region in bacteria). Cytoplasm is mostly water. Besides water, cytoplasm contains dissolved salts, organic molecules such as proteins, and ribosomes ... is sucrose, which we often call table sugar (or just sugar - as in "please pass the sugar"). Sucrose is made of a glucose monomer bonded to a fructose monomer. Starch is use...

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