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Introduction to the lesson
You have now completed working through chapter one. The purpose of this lesson is to consolidate your knowledge and make sure that you have understood everything. It is tempting in the beginning of the course to skip over things that you don't understand but it will be much easier when you come to the final exam preparation if you work consistently and thoroughly throughout the course. If there is something you don't understand make the effort to look it up. That being said, when you come back to revise after going through the entire course, some things will be clearer so do not stress if there are a few concepts which you really struggle with.
Make sure you have finished your mindmap and that you have all the important information on it.
Summary
Read the summary on p.22-23 of your text books.
End-of-chapter questions
- Complete the end-of-chapter questions (p.23-26)
- Mark your work (refer to the CD-ROM for answers) and make sure you understand what you got wrong.
Useful resources for chapter one
Biology and microscopy
Comparing microscopes: This is a very good explanation of the different microscopes -- the light microscope, the SEM and the TEM.
Cell organelles
Khan Academy: This is a detailed explanation of the organelles of the cell. Some of the terms are slightly different and this video is not specific to AS level, but it is a useful resource nonetheless, as it covers most of the material. Don't get confused by the details. Just use it as a revision tool and if something confuses you, look it up in your textbook.
Cell organelles explained in 5 minutes: This is a brief summary of all the organelles and their functions.
Mr W's cell song: A fun way to revise the basic functions of some of the organelles.
Eukaryotes vs. Prokaryotes
SnapRevise: A comprehensive list of the differences between eukaryotes and prokaryotes.
For interest . . .
Here is a video about the history of the cell theory. You will not be tested on the history of the cell theory in your AS exams but it is fascinating to see how the way we think about living things developed over history.