MM I V 



/. -^-' '— = 1 (7) 



If again w I' take : 



a/., 



'f = ' ^^) 



wc' find : 



1 (i—8,v 



/• = /. (0) 



/(l-O a—.r 



ov 



,r 



1—8- 



1 a 



/•^(l-f) = -/. (10) 



t .i' 



1 



n 



ill wliicli If is the (•(•iicciili'alioii al tlio Itcuiiiniiiu'. r llic aiiioimi dt" 

 siiLiai' iiixorlod in llic period /. l\ llic xclocily conslanl of tlic roac- 

 lion if laivlng place witlioul aiitocalalvsis and /•„ the coiistanl of the 

 antoeatalysis. 



'A. Thi> foi'iiinla \\ a^^ in\estii'aled in a nnmher of cases and it 

 appeai't'd thai the reaction niav indeed, he i-e[)i-e>ented itv liial 

 e.\j)i'e8si()n. 



As in tiie case of in\ei-lin it ha> ap|»eai'ed that the ([uantity f, 

 w hich. accor(hnu' to liie assnni])lioii inad(\ need only remain con-tant 

 (liiriiiLi- the same series of experiments, as a rnle siilfers hut liiHe 

 change (from 0.(5 to ().!S). Prohahly. the \aliie of /■ depend^ on \\\o 

 |)re\ions his|oi-y of tiie enzyme, imt it should he i-emend»ered diat 

 enudsin is mu(di nioi-e sensitive than inxertin. 



In the following tai)les 



(I stands for tiie conceiifrafion at the start 



./• the ([iiantity invei-ted. therefore 



.r 



— the relali\(' (piantit\' nnerted 

 a 



t the corre>[)onding time in miiiulo. 



'I'he third coliinni contain> liie \alne of L\ [i — f) calculated accor- 

 ding to (10). 



1 



In the fourth column wc lind o rrr — /. . 



t a—.r 



