catalase experiment

food rate of fizzing (1-10)
boiled potato 0
raw potato 4
cooked liver 1
raw liver 10

the table above shows the results of an experiment done by juan and cindy. juan and cindy placed hydrogen peroxide on several food samples and recorded the relative amount of fizz that each produced. the fizz was produced by oxygen bubbles released by the action of the enzyme catalase, which is found in almost every living cell. which of these is a valid conclusion from their data?

he is very short, and he can only reach halfway up on the elevator buttons. but on a rainy day, he has his umbrella with him, and he uses it to poke the button at the top.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.

c. is the correct answer