Certain environmental changes can denature proteins. denatured proteins lose their three dimensional structure and when the protein is an enzyme, they lose their ability to function. ph is just one factor that can change the effectiveness of an enzyme. what other factor might the students test regarding catalase specificity?
a) students could test various other enzymes to see if all enzymes were denatured in a basic environment (ph = 13).
b) after determining the optimum ph, they could vary the temperature of the environment to see if catalase is temperature specific.
c) after determining the optimum ph, the students could vary the amount of catalase used while keeping the amount of substrate constant.
d) students could test an assortment of food items besides liver, raw potato, apple, crackers, to see if catalase is consistently ph specific.
endoplasmic reticulum contains ribosomes, the ribosomes are the little dots or bumps on the endoplasmic reticulum. the reason why they're bound there is because becuae their making proteins and then their using endoplasmic reticulum to transport those proteins to different parts of the cell.
i think that maybe you should ask students to write down their behavior so that you could get the student's opinion in their behavior since they're the one going through it.(she could choose any since they would all in the end)