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Higher Biology
Cell Variety
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
2
Characteristics of Living Cells
How many can you
name?
There are 7!
3
Typical Animal Cell
4
Typical Plant Cell
How many structures can you name?
Cell
1 Wall
Vacuole5
Chloroplast
2
Nucleus
3
Cytoplasm6
Cell
4 Membrane
5
Cell Parts

Make sure you know the functions of
the following:
Cell Wall
Vacuole
Cytoplasm

Chloroplast
Nucleus
Cell Membrane
Which ones are in animal cells, plants
cells or both?
6
Unicellular Organisms
Consist of 1 cell!
 That cell has to do all the jobs to keep the
organism alive

Paramecium
Euglena
7
Unicellular Organisms
Insert the “Unicellular Organisms” diagram
into your notes.
 On the diagrams, label as appropriate:






Nucleus
Cell wall
Chloroplast
Cilia
Contractile vacuole
8
Multicellular Organisms
Made of many different types of
cell
 Each type of cell carries out a
different function.

9
Multicellular Organisms
Insert the “Animal Tissues” diagram into
your notes.
2. Name each of the tissues and the types
of cells present.
3. Below each diagram describe the function
of each cell type.
4. Describe how red blood cells and ciliated
columnar cells are suited to their
function.
1.
10
Multicellular Organisms
Insert the “Plant Tissues” diagram into
your notes.
2. Name each of the tissues and the types
of cells present.
3. Below each diagram describe the function
of each cell type.
4. Describe how palisade mesophyll cells and
root hair cells are suited to their
function.
1.
11