/I/ Approxlinate percentage of carbohydrate re(iulred In optimum diet. /}/ Not fully utilized. /5/ Has a retarding effect on grovth. 

 Ill Reducing sugars. /8/ Utlllied but not required. /9/ Toxic for this organism. /lO/ Utilised by this organiam better than any 

 other sugar. 



26 



