Animal cells have a nucleus which contains DNA.
DNA codes for proteins, it acts like a blueprint for making cell parts and the work that the cell does.
Outside the nucleus, dotted around the cell are very small structures called ribosomes.
make proteins. They get instructions from the nucleus on what proteins to make and when to make them.
The cell needs energy to make proteins in the ribosomes and to function.
This energy can come from two places; the is the most important source of energy in the cell.
It takes in sugars and oxygen and makes them into useful energy for the cell.
This is called aerobic respiration.
Filling up the rest of the cell is
Cytoplasm is a jelly like substance and all the parts of the cells sit inside the cytoplasm.
Cytoplasm is where respiration takes place when there is no oxygen. This is called anaerobic respiration.
The outside of an animal cell is called the
The cell membrane is a barrier that selects what comes into the cell and what goes out of the cell.