In a biology class, the students conducted an experiment using hydrogen peroxide onto a slide of a potato at different temperatures and counted how long it took for bubbles to appear on the potato. The students' data is in the table. What is the best (optimum) temperature for catalase activity? Hint: remember the purpose of a catalyst in reference to time. *

b 04545

true skin; another name for the dermis. lies directly beneath the epidermis and is often referred to as the true skin. outermost layer of epidermis, consisting of dead cells.

in addition to being able to metabolize, grow, digest food, and excrete wastes, what other functions must an organism perform if it is to survive? survival also depends on the ability to maintain one's boundaries, to move, to respond to stimuli, and to reproduce. oxygen is a survival need.