The nucleus has DNA which has all the blueprints that direct the functions of each cell.
plasma
epithelial tissue
cell
A virus carries out the function of replication, by hijacking the host cell's machinery to make copies of itself.
It carries out respiration.It generates energy in cell.
endoplasmic reticulum
It carries oxygen around the body.
Nucleic acid
Chloroplast.
The nucleus controls and tells each part of the cell what to do.
the pp
The cell membrane acts as a protective barrier for the cell, similar to how bark provides protection for a tree. Both structures help regulate what enters and exits the cell or tree, and also provide structural support.