Ison Biology has moved!

You will be automatically redirected to the new address. If that does not occur, visit
http://isonbiology.com
and update your bookmarks.

Friday, September 16, 2011

IG 2.3 "Life's Backbone"

Most of the compounds that make up living things contain carbon. In fact, carbon makes up the basic structure, or “backbone,” of these compounds. Each atom of carbon has four electrons in its outer energy level, which makes it possible for each carbon atom to form four bonds with other atoms. As a result, carbon atoms can form long chains. A huge number of different carbon compounds exist. Each compound has a different structure. For example, carbon chains can be straight or branching. Also, other kinds of atoms can be attached to the carbon chain.

1. Make a list of at least ten things that contain carbon.
2. Do you have any things on your list that contain only carbon? List them.
3. If you know other elements that are in any items on your list, write those items.