Bacteria, Yeast and Specialised Cells

Bacteria can only be seen through a powerful microscope

Bacteria cells have a cell membrane and a cell wall around the cytoplasm and bacteria has no nucleus genetic material is in cytoplasm

Bacteria that has multiplied is called a colony and if big enough can be seen with the naked eye

Yeast 

is a single cell organism

they have a nucleus, cytolpasm and a cell membrane with a cell wall around them.

Specialised cells the structure of the cell is linked to it function

A cell that has lots of mitochondria needs a lot of energy like a muscle cell or sperm cell

A cell that has many ribosomes produces a lot of protein like a gland cell that produces enzymes

Cells with tails are able to move

Receptor cells have specialised structures that enable them to detect stimuli, for example the cone cells in the eye are light sensitive

Neurons are made to carry impulses from receptors to the CNS

Plant cells with lots of chroloplasts will be for photosynthesis like a mesophyll cell of a leaf

Root hair cells increase the surface area of the root so that it can absorb water and mineral ions effeciently