The organelle that maintains pressure against the cell wall, so that the plant cell keeps it shape, is the
a. central vacuole.
b. rough endoplasmic reticulum.
c. smooth endoplasmic reticulum.
d. nucleus.

true is the final answer!

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.