1. No membrane bound nucleus Only distinct organelle ribosome
Prokaryotic cells
Very simple
Usually unicellular
No membrane bound nucleus
Only distinct organelle ribosome
Typified by bacteria
Introduction to cells

2. Typical Prokaryotic cell
Introduction to cells

3. Cell wall - peptidoglycans (Disaccharide and peptide units)
Capsule - polysaccharide layer
Adherence and protection
Pili (fimbri) – Anchoring
Cytosol - Site of biochemistry
Ribosomes - Protein synthesis
Flagella - Motility
Nucleoid - DNA
Introduction to cells

4. Membrane bound organelles including nucleus
Eukaryotic cells
Usually complex
Often multicellular
Membrane bound organelles including nucleus
Organised into organs and tissues
Introduction to cells

5. Typical Eukaryotic cell
Introduction to cells