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Show Plants ' Food iaking Making MakingSlowed MakingSlowed Slowed by Heavy WaterNew Water WaterNew New York . . - Heavy water watercontaining , , contammg containing double-weight double weight - hydrogen hydrogen hy- hy hydrogen - - [ drogen atoms insteadof instead of the thecommon thecommon thecommon common , single-weight single weight smgle-wcIght smgle wcIght - ones onesslows , slows down the food-makIng food makIng foodmakIngprocess foodmakingprocess food-makingprocess food makingprocess - process in green plants , Drs Drs.James DrsJames . I James J ames Curry and Sam F . Trc- Trc Tre- Tre Trclease Trelease Trc-lease Trc lease - - lease of Cplumbia Cplumbm Cpluxnbia university universityha universityhac universityhave ha\ ha hae hac \ e found . . They kept colonies of a one celled celledgreen celledgreen celledgreen green plant in practically praeticaUy pure pureneavy pureneavy pureneavy neavy water , and parallel colome3 coboniei colonieiin colome3in cobonieiin in similar slm1lar amounts of ordinar ordinary ordinarywater ordinarywater , water . The heavy water colomci colonies colomcicarried coloniescarried colomcicarriert carried on photosynthesis photosynthcsls , . or pri primary primary primary mary food rood production produchon , , only about abouttwo abouttwo abouttwo two fifths as rapidly rapldl ) as those in tho the thocommon thecommon thocommon common water . |