Glossary

1.eukaryotes ----A single-celled or multicellular organism whose cells contain a distinct membrane-bound nucleus.

2.molecules----The smallest particle of a substance that retains the chemical and physical properties of the substance and is composed of two or more atoms; a group of like or different atoms held together by chemical forces.

3.binary fission----fission into two organisms approximately equal in size.

4.Mitochondria----an organelle in the cytoplasm of cells that functions in energy production.

Thanks to Dictionary.com (http://dictionary.reference.com/)

Cells Journal 6

Why is eukaryotes cells important to us and how the cells function as a whole?

There is a lot of activities/functions within a cell.For instance, nucleus is 'responsible' for passing down DNA during cell division( binary fission).Mitochondria: Release energy during respiration. There is many more functions of a eukaryotes cells.


They are important to us ( and also other organisms like plant and animals,fungi) because they allow us to grow when cell divisions occurs.They repair damage cells and replace dead cells in our bodies.They release energy for the cells when we were doing something or even sleep. There will be also a higher form of life if the cells in our body divides.

As for plants,it includes the same as us but there is more. The plants photosythesis with the help of the chloroplasts in the cells and to keep a regular shape by the cell walls of the cells.

P.S The oldest eukaryotic fossil is approximately 1.5 billion years old and the eukaryotes cellscomes from the period :Proterozoic.


Special acknowledgement to :
1)World Builders (http://curriculum.calstatela.edu/courses/builders/lessons/less/les4/euk-and_pro.html)

2)The Kingdom of life ( http://www.earthlife.net/kingdom.html)

3)Unknown (http://www.gwu.edu/~darwin/BiSc151/Eukaryotes/Eukaryotes.html)

4)Tolweb (http://tolweb.org/tree?group=Eukaryotes&contgroup=Life)

5)Wikipedia(http://en.wikipedia.org/wiki/Eukaryote)