Download Cells under the Microscope

Cells under the
Microscope
A quick review
1. Are these plant or animal cells?
These are
plant cells!
2. What organelle is the arrow pointing at?
Chloroplasts
* Photosynthesis takes place inside his
organelle
• Without chloroplasts plants can’t
make their own sugars!
• Without sugar from the Chloroplasts,
a plant’s mitochondria can’t make
ATP (cell energy)
3. Why do plant cells have geometric shapes?
(like rectangles or hexagons)
The cell wall is hard
& keeps the plant
cell’s shape!
* The rigid cell wall is what
allows plants to grow tall.
4. What is the arrow pointing at in the animal
cell?
Nucleus
* It’s often the only organelle
that you can see under a light
microscope (like the ones we
use)
5. What is the largest organelle in an animal cell?
Nucleus
* It’s often the only organelle
that you can see under a light
microscope (like the ones we
use)
In order to see all the organelles in a cell, you need a
more powerful microscope.
This picture of an animal cell was taken using an electron microscope.
Notice how big the
nucleus is,
compared to the
other organelles.
Did you see any unicellular organisms in your
pond water?
Paramecium = a medium size protist
These tiny animals are
collectively called Protists.
• They are each made up of
a single Eukaryotic cell
• They are unicellular
organisms
Halteria = a tiny protest commonly found in stagnant
pond water