Your assignment in biology lab is to design an experiment that would detect whether the enzyme pepsin is breaking down a protein. In the human body, pepsin works in the stomach. Which of the following experimental designs would be your best choice?

it is either c or d and i know for sure it is not a or b

the food storage products of chrysophytes are oils or the polysaccharide laminarin.   formerly classified as plants, the chrysophytes contain the photosynthetic pigments chlorophyll a and c all but the yellow-green algae also contain the carotenoid pigment fucoxanthin.