The membranes of phagosomes come from the plasma membrane. Lysosomes have a pH higher than the cytosol. The rough endoplasmic reticulum has ribosomes attached. Lipid biosynthesis occurs in the smooth endoplasmic reticulum. The genetic material of prokaryotes is found in the nucleoid.
Mitochondria are present in both animals and plants.
Typically the largest organelle in an animal cell is the nucleus. A plant cell can have as its largest organelle a central vacuole. The plasma membrane of either a plant or animal cell regulates traffic of materials in and out of the cell. Animal cells that produce and secrete steroid hormones typically have far more smooth endoplasmic reticulum than does the average cell. In the endoplasmic reticulum, some proteins get glycosylated.