1. Higher Biology
Cell Variety

2. By the end of this lesson:
You should be able to:
Know that a large variety of cell types exist
Know what a unicellular organism is
Know what a multicellular organism is
Know why multicellular organisms have
different types of cell

3. Characteristics of Living Cells
How many can you name?
There are 7!

4. Typical Animal Cell

5. Typical Plant Cell How many structures can you name? Cell Wall 1
Vacuole
Chloroplast 2 5 3
Nucleus
Cytoplasm 6
Cell Membrane 4

6. Cell Parts Make sure you know the functions of the following:
Which ones are in animal cells, plants cells or both?
Cell Wall
Chloroplast
Vacuole
Nucleus
Cytoplasm
Cell Membrane

7. Unicellular Organisms
Consist of 1 cell!
That cell has to do all the jobs to keep the organism alive
Paramecium
Euglena

8. Unicellular Organisms
Insert the “Unicellular Organisms” diagram into your notes.
On the diagrams, label as appropriate:
Nucleus
Cell wall
Chloroplast
Cilia
Contractile vacuole

9. Multicellular Organisms
Made of many different types of cell
Each type of cell carries out a different function.

10. Multicellular Organisms
Insert the “Animal Tissues” diagram into your notes.
Name each of the tissues and the types of cells present.
Below each diagram describe the function of each cell type.
Describe how red blood cells and ciliated columnar cells are suited to their function.

11. Multicellular Organisms
Insert the “Plant Tissues” diagram into your notes.
Name each of the tissues and the types of cells present.
Below each diagram describe the function of each cell type.
Describe how palisade mesophyll cells and root hair cells are suited to their function.