Cell structure and Function

Respiration:

Cells require and absorb oxygen to poduce heat and energy

Growth:

Cells grow to maturity by manufacturing proteins. They can then divide or specialise 

Excretion:

Waste products exit through the cell membrane

Irritability:

Cells can respond to a physical, chemical or thermal stimulus

Cell Membrane: Outer coating which transports substances into and out of the cell

Nucleus: Regulates the cell's general and specialist functions 

Ribosomes: Help to manufacture other proteins 

Rough and smooth endoplasmic reticulum: Makes, stores and transports materials in and outside of the cell 

Mitochondria: Suppy the cell's energy source

Lysosomes: Contain enzymes, which digest worn out parts of the cell for recyling and getting rid of waste products 

Centrioles: Essential for cell division

Golgi apparatus: Changes and stores protein and transports it out of the cell