1. Nature of Bacteria and Fungi
Higher Level only

2. Learning Objectives Discuss the prokaryotic nature of bacteria
Discuss the eukaryotic nature of fungi

3. Prokaryotic and Eukaryotic
Living things can be divided into two categories with regard to the structure and complexity of their cells:
Prokaryotes
Eukaryotes

4. Prokaryotic and Eukaryotic
Prokaryotic cells do not have a nucleus or membrane enclosed organelles e.g. bacterial cells
Eukaryotic cells have a nucleus and membrane enclosed organelles e.g. plant, animal, protist and fungal cells

5. Prokaryotic and Eukaryotic

6. Prokaryotic - Bacteria
Bacteria are prokaryotic cells
Their kingdom Monera is also referred to as prokaryotae
They are extremely small (0.5 – 10 μm)

7. Prokaryotic - Bacteria
As they do not have a true nucleus, bacterial DNA is found as a circular loop floating freely in the cytoplasm
They do not have membrane enclosed organelles like mitochondria and chloroplasts

8. Eukaryotic – Fungi, plants, animals, protists
The cells of all other kingdoms are eukaryotic
More advanced
they have a true nucleus and membrane enclosed organelles
evolved from prokaryotic cells

9. Prokaryotic cells e.g. Bacteria Eukaryotic cells e.g. Fungi
Extremely small
Larger
No nucleus
Nucleus
No membrane enclosed organelles
Membrane enclosed organelles
DNA circular (loop)
DNA arranged into chromosomes
Cell division preceded by DNA replication
Cell division preceded by mitosis or meiosis

10. Learning Check What two categories can cells be placed in?
In what way does a bacterial cell differ from a fungal cell?

11. Syllabus

12. Depth of treatment Prokaryotic nature of bacteria
Eukaryotic nature of fungi