Then you must ask specific questions.
Animal cells are various sizes and different shapes and they cannot be seen with the naked eye. Parts of animal cells are: Cell membrane - forms the outer covering of the cell.
Cytoplasm - gel like substance where all other cell organelles are suspended inside the cell.
Nucleus - contains the hereditary material DNA and directs the activity of the cell.
Centrioles -organise the microtubules assembly during cell division.
There are many more but I figure you don't need them as I don't really know much about them either.