Animal cells do not have a cell wall. Instead, animal cells have a cell membrane that protects the organelles inside of the cell and allows selective compounds to move in and out of the cell.
Animal cells contain a variety of organelles that each have their own function. The organelles sit inside the cytoplasm of the cell, which is a jelly-like material that suspends each organelle. The main organelles of an animal cell include the nucleus, the Golgi apparatus, the mitochondrion and the smooth and rough endoplasmic reticulum. All of these organelles help process compounds such as proteins, lipids and carbohydrates for the cell to utilize or secrete.