IOE Scenario for Microworld
LESSON 1
Cell pictures of animals and plant cells
Microworld
Take each element and make a picture of each one so that the pictures above are
“exploded” – divided up into their constituent parts.
Animal cell 3 elements
Cell membrane
Nucleus
Cytoplasm
Plant cell 6 elements
Vacuole
Chloroplast chlorophyll (a number of these and in the shape of the cytoplasm)
Cytoplasm
Cell wall
Cell membrane
Nucleus
Mix these so that the parts that go together are not too obvious.
In groups the students put the parts together to make an animal and a plant cell. They
must justify their decision.
True or false
Animal and plant cells both have a cell membrane that lets substances in and out.
(TRUE)
Both animal and plant cells have a cell wall to give the cell shape and support.
(FALSE)
Chloroplast uses light energy to produce sugar from water and carbon dioxide during
photosynthesis in both animals and plants.
(FALSE)
Chemical reactions that keep the cell alive happen in the cytoplasm.
SJ FEB 2006
IOE Scenario for Microworld
(TRUE)
The nucleus is the control centre of the cell in both plants and animals.
(TRUE)
The vacuole contains a watery fluid which helps to keep cells rigid in both plants and
animals.
(FALSE)
Students use the diagrams to help them decide which of the statements are true or false.
They must write a correct statement where a false statement is made.
Remainder of the lesson and homework
Resources: Junk items + fabric, pipe cleaners, card – some of which must be green for
chlorophyll
Make a 3D model of an animal and plant cell side by side.
Lesson 2
Key words and diagrams of the two types of cells should be hung from “washing lines”
from the ceiling or around the walls.
Either order a sample of Euglena in good time or find a video clip of Euglena on the
Internet. And example for such a videwo clip is:
http://video.conncoll.edu/f/pasiv/lucid/Euglena-900.html (which also has stills that show
the cell structure well and these can be presented on powerpoint during the activity).
Another example is:
http://biog-101104.bio.cornell.edu/BioG101_104/tutorials/protista/movies/Euglena.MOV
Give out evidence cards (see page 3 and 4 below) sorting sheet.
Configure a Digalo pad with the following in different shapes
Evidence that suggests Euglena is a plant cell
Evidence that suggests Euglena is an animal cell
Evidence that suggests Euglena is either a plant or animal cell
Evidence that suggests Euglena is neither a plant nor an animal cell
Students decide which shape each statement should go in and write the statement in that
shape.
SJ FEB 2006
IOE Scenario for Microworld
Euglena does not have
a cell wall
Euglena contains
chloroplasts
Euglena has a nucleus
Euglena is a single cell
organism
Euglena can absorb food
from its surrounding
Euglena confused early
scientists
Euglena is normally green
The nucleus contains DNA
and controls the cell
activities
Chloroplasts enable a cell to
photosynthesize
A vacuole controls the
amount of liquid in a cell
Euglena swims
through water
Euglena can make
its own food
Euglena has a vacuole
SJ FEB 2006
Euglena is light sensitive
IOE Scenario for Microworld
Euglena contains
cytoplasm
Euglena can change
its shape
Euglena live in ponds and
puddles
Euglena is temperature
sensitive
Euglena can make its own
food
There are more than two
classification groups
Euglena live in ponds
and puddles
Euglena can reproduce
SJ FEB 2006