All animals and plants are made of cells. Animal and plant cells have features in common, such as a nucleus, cytoplasm, cell membrane, mitochondria and ribosomes. Plant cells also have a cell wall, and often have chloroplasts and a permanent vacuole. Note that cells may be specialised to carry out a particular function.
We use microscopes to see very tiny structures such as cells.
Bacterial cell structure
Bacterial cells are much smaller than plant or animal…