Question

Why must the cells in the sample be alive?
A) so that the hydrogen peroxide can kill them
B) to ensure the activity of the enzyme
C) Dead cells don't have peroxide in them.
"The sample" is scraping your fingernail to get live cells then placing it on a glass plate and pouring hydrogen peroxide to see the reaction.

Answer 1

B) to ensure the activity of the enzyme

Answer 2

Thanks you! :)