Question

If two test tubes marked A and B, little saliva of the test tube A is heated for about 5 minutes. Boiled potato paste is added to both the test tubes.After 30 minutes, both the samples are tested with iodine. Sample A turns deep blue while sample B do not show any change of colour. Which one of the following statement is correct for the above experiment?
a: potato contains amylase and saliva contain starch
b: potato contains starch and saliva contain amylase
c: appearance of deep blue colour of sample A shows the amylase activity
d: no colour change of sample B indicates that starch is not hydrolyzed

Answer 1

Answer:

b-Patato contains starch and saliva contain amylase