Molecules, Atoms, etc

Basic Ideas in Chemistry.

What is Matter? - anything that takes up space and has mass. Can you give some examples?

What is an element? - pure substance that can not be broken down into other substances by chemical means.

What are the most important ones in living systems? C, H, N, O Why are these the most important? What molecules are they involved in?



Describe what an atom is and what it contains - smallest part of an element. Can you draw a picture of an atom and label the parts we discussed?

What about bonds? - Process of transferring electrons creates attraction which holds the atoms together.
Covalent vs. Hydrogen vs. Ionic bonds?

what is a molecule? - 2 or more atoms held together by covalent bonds.

Saturday and Review of organelles

Today we reviewed the parts of the cell and went over your 'cell wanted' ads. Try to connect the parts of the cells with items/things that help you remember their function.

We also went over different kinds of cells and how their structure helps their function.

For homework you have to read 4.1-4.3 and answer the questions in your handout. Below is a video to help with (if you watch, only watch to 8:00). Don't forget to bring your computers to class on Monday!