The answer is a. plant cells have cellulose and animal cells don't.
Is there an image? in the question?
With an insoluble outer layer which remains in the cell where it is formed until the energy is needed
Increasing substrate concentration also increases the rate of reaction to a certain point. Once all of the enzymes have bound, any substrate increase will have no effect on the rate of reaction, as the available enzymes will be saturated and working at their maximum rate.
I’m sorry I’m not smart I don’t know I just need answers for my questions