Quiz

1. Cells are tiny units of life. T
2. Only parts of the human are made up of cells. F
3. The heart is not made up of cells. F
4. How does the brain works ? Cells send electrical signals to each other
5. All types of cells have the same kind of structures. T
6. Cells come ony in one size and have all the same shape. F
7. You can see cells with your own eyes. F
8. The nucleous acts as the cell's brain
9. The nucleous controls the cell's activities.
10. The nucleous also holds the DNA
11. The DNA is repsonsable for the instructions for life.
12. The cell's membrane protects each cell.
13. How does a cell stay alive ? water, nutrients and waste
14. Cells consist of a internal tubulus network.
15. What happens when people get injured ? How do cells monitor human actions? They communicate to other cells in order to repair the damage.
16. Our heartbeat is a result of cells working together
17. When a cell dies it gets regenerated all the time.
18. Explain the mitosis process. The cell splits into 2
19. As a result of loosing and replacing cells, most cells are younger then we are.
20. Cells after a certain age stop duplicating. T

Microscope

 

Recently in class, we used a microscope for the first time. It was amazing how big the things we observed seemed to be. One of our subjects was a tiny fly-like insect, and although I could find a picture of that specific animal, it kinda looked like this...

Luckily, it was so tiny that it wasnt as scary, anyways, we also analized a human hair, which turned out to be just a black line, however, if we had a microscopic with more power, we wouldve gotten this

It was a great experience, and I hope we get to do it again and see many more of those small beings.