1. Cells
6th Grade Science

2. Cells The cell is one of the most basic units of life.
There are millions of different types of cells. 
There are cells that are organisms themselves, such as microscopic amoeba and bacteria cells. 
And there are cells that only function when part of a larger organism, such as the cells that make up your body. 
The cell is the smallest unit of life in our bodies. 
In the body, there are brain cells, skin cells, liver cells, stomach cells, and the list goes on. 
All of these cells have unique functions and features. 
Some have recognizable similarities. 
A plant cell from the leaf of a poplar tree
A human red blood cell

3. Animal Cell

4. Plant Cell

5. Cell Organelles Organelles are found in both plant and animal cells.
Organelles are the objects located inside the cell that carry out the activities in the cell and keep it alive.

6. Cell Wall The cell wall is found surrounding plant cells only
This surrounds the cell membrane of a plant cell and gives the cell protection and support.
The cell wall is a rigid
structure outside the
cell membrane

7. Chloroplast Chloroplasts are found in plant cells only.
These organelles contain chlorophyll which is used in the “food making process”, or photosynthesis, and give the plant a green color when exposed to light.
A plant's chloroplasts convert
light energy into chemical energy

8. Cell Membrane
The cell membrane is found in both plant and animal cells.
The cell membrane is the part of the cell that surrounds and protects it.
It regulates what can enter and leave the cell.
The cell membrane allows
only certain materials to move
in and out of the cell

9. Cytoplasm Cytoplasm is found in both plant and animal cells.
This is a jelly like substance inside the cell in which the organelles “float”.
This is the cells environment.
Cytoplasm is the gel-like
material inside the cell
(but unlike gelatin it does flow)

10. Nucleus A nucleus is found in both plant and animal cells.
The nucleus controls growth and reproduction.
It uses DNA to direct cell activities.
The Boss

11. where energy is released
Mitochondria
Mitochondria are found in both plant and animal cells.
They are the “powerhouse” of the cell.
They produce energy for the cell.
The mitochondria are
where energy is released

12. Golgi Bodies Golgi bodies are found in both plant and animal cells.
They package materials and store them or move them around and out of the cell.
Golgi Bodies package
and move proteins

13. Vacuole Vacuoles are found in both plant and animal cells.
Vacuoles are an expanding and contracting organelle that stores water, nutrients, and wastes.
Like your suitcase, a vacuole
is a temporary storage space
for the cell.

14. Endoplasmic Reticulum
Known as E.R., they are found in both plant and animal cells.
These are passageways from the nucleus that transport proteins through the cell.
Rough E.R. has ribosomes attached.
Smooth E.R. does not have ribosomes attached.
The ER is like a system
of conveyors moving
materials from one place
to another

15. Ribosomes Ribosomes are found in both plant and animal cells.
They make proteins for the cell.

16. Lysosomes Lysosomes are found in animal cells.
They recycle worn out products.
A Lysosome acts as a
wrecking ball that breaks
apart wastes or worn out cell parts.

17. Cell Quiz
Click on the picture for the quiz.