Monday, August 31, 2009

Cell structure



Copy these notes in your book, answering questions.





A Cell is Bag of life, that makes copies of itself.

Describe what a cell would look and feel like if it where the size of a tennis ball.



What instrument do you need to see most cells?_____________________





This is an artist impression of a AIDS virus. Sketch this in you book. What do you need with all sketches to tell people about the size of what they are looking at? What do you think is happening in this picture.

Use the scale in this link to find the length of a Cholera germ. What kind of microscope was this pictured with.



Sketch an cell as you would see under a microscope
- use pencil
- half a page
- dashed circular line shows limit of field of view
- include a scale
- include a title
- label parts and include a legend

On completion show the teacher for marking.


Note this in your book




Prokaryotic - Cell like bacteria primative

Eukaryotic - Cell with organelles inside

Give a few examples of each


What is an organelle? _________________________


Some organelles are cut down copies of simple Prokaryotic Cells, How do you think this happened? ______________________





All cells use DNA (Deoxyribonucleic acid ) to store information used by the cell to make the parts of the cell that the cell needs.

Look at this video and describe what you see.

The nucleus stores the DNA so it can be read to make parts for the cell, but the nucleus wall dissolves when the cell is dividing.

What are cancer cells? This is a photo of cancer cells can you tell what gives it away?

Goto a interactive model of a cell draw a table of the organelles, Name, What they do

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I come from a Science family: My father Geoffrey Hill was Australia's first computer programmer on CSIRAC the fourth computer in the world. He is credited with invention of Computer music and the development of “Interprogram” a language before Basic. My PhD is in Atomic and Molecular Physics. I have researched the activated oxygen layer above the ozone layer, and 'Assigned' the world's smallest molecule. At the University of Toronto I researched high power UV lasers. I have specialized in automation in fibre optics. This developed into research in Machine Intellect and Robots. I have enjoyed work as an Explainer with Questacon and my time as a part-time soldier. I currently teach High School Science at Epping Boys’ High.