Answer:
I believe the line is pointing to the nucleus, which is the green ball in the center of the cell
Explanation:
Here is a link that can help you.
http://study.com/academy/lesson/what-is-an-organ-system-definition-pictures-quiz.html
Denature
as
when something causes the enzyme to change shape, thus changing shape of the active site and not allowing any substrate molecules to fit in the site and bind. Denaturation makes it so reactions don't occur between the substrate and the enzyme
The answer is C build muscle hair and nails