The cell wall contains not only cellulose and protein, but other polysaccharides as well. The cell wall provides structural support and protection. Pores in the cell wall allow water and nutrients to move into and out of the cell. The cell wall also prevents the plant cell from bursting when water enters the cell.
Hydrogen and hydroxide ions
Answer:
The genetic material, made of DNA or RNA
Explanation:
It creates mid-ocean ridges
