Chapter One

All living things are made of cells. If we can understand the Biology of the Cell then we understand Life and get answers to questions like "who am I?" and "where did I come from?" More than that, Cell Biology is fundamental to all biological and medical professions such as medical researchers.

:Let's take a systematic approach. After a couple of sidetracks like learning how to look at cells through microscopes, we work our way through the components of the cell, analysing the contribution of each in turn. DNA and proteins will turn out to be the most important molecules that a cell contains. We go on to look at how cells interact in multicellular creatures and finally consider how we can apply our knowledge of Cell Biology to real-world problems, today and tomorrow.

Chapter 2 - Summary

Microscopy

Cells are too small to see with the eye so we use microscopes. Using a light microscope a Desmid - an ususual cell - looks like this:

More powerful than the light microscope is the electron microscope - using a beam of electrons instead of light.

Chapter 3 - Summary

Atoms & Molecules

We will have to look at the molecules that construct life in order to properly understand it. You need to know how we draw those molecules.

Although we cannot see the individual atoms that comprise molecules, under the electron microscope we can see some of Nature's biggest molecules.

Do you know the difference between atoms and molecules?

Studying the workings of life at a cellular level we'll find ourselves doing what was unthinkable only a few years ago: looking at what the smallest components of matter, atoms and molecules themselves, are doing.

Are you familiar with atoms and molecules? If you have studied some Chemistry you probably know the difference between them - otherwise here is a quick introduction - Chapter Four

Home

Chapter 1-3

Chapter 4

Chapter 5-7

Chapter 8

Chapter 9-10

GeoGene.com information on DNA Genealogy.