AQA AS biology = ultrastructure of cells

Ultrastructure of cells

Nucleus = has the following components: nuclear envelope (a double membrane that surrounds the nucleus), the nucleolus (synthesises the components of ribosomes), chromotin ( before the cell is about to divide, the chromotin condenses into chromosomes)

Mitochondrion = sites of aerobic respiration. The inner membrane is folded into cristae to increase the surface area. The fluid is…