Life Subtances - Macromolecules
201010-b-train.jpg
Why a train? Because giant macromolecules are put together from smaller individual parts, called monomers.


This powerpoint explains about macromolecules and how they are formed.
Note: the section on Nucleic acids is missing!!!

Here is a good animation that shows how monomers form into polymers using Enzymes and the characteristics of all biological molecules. Life Substances - made out of CARBON!

Chem4Kids Carbonbased MacromoleculesHere's a great resource on our Macromolecules, that is more in depth than your textbook.

Textbook Online information: a Link to our textbook resources. You can find your


Here's another take on these molecules from a science textbook

Be sure to underline important points and answer all questions.



Use the Glencoe textbook to find the notes to complete this outline. Use pages 161-167.


Lipids


Lipids and the Cell Membrane Information
Lipids in cell membranes

Cell Membrane construction activity



Carbohydrates

Carbohydrates in our diet
Carbohydrates from Plants.
Carbohydrate cycle from Plant to animal


Protein Information

Proteins in the cell membrane: Facilitated diffusion

Enzymes


How Enzymes Work Animation

Enzymes are a type of protein that are extremely important to our cells. We know that our cells get energy through a complicated process. First the sun's energy is used by plants to make glucose in photosynthesis, then we, or another animal, eats the plant. The glucose, which is stored as starch (see the powerpoint about organic compounds on this page) in the plant is broken down in our mitochondria during cell respiration. This process creates large amouts of ATP, the molecule that our cells use for energy.




Pay particular attention to information about how enzymes become denatured, the rate of cellular reactions and how enzymes use the "lock and key" method for completing reactions that would normally take a long time or a lot of energy.

This information combined with a video about extreme enzymes, found in amazing organisms that live in extreme environments will help you to understand why enzyme reactions are so important for organisms.

If you don't have access to the videos belolw, you can still read about Extreme Enzymes on your handout, or you can visit the California Academy of Science online, they study and report about xtremelife Read about the Pomeii worms.

Watch this segment about the Pompeii Worms discovered at the hydrothermal vents (where many scientists believe life on earth originated)
Pompeii Worms at the Hydrothermal Vents Video Segment (password required - teacher access only)

Turn to the back of your
Caves (Life in Extreme Environments) Watch entire videon (password required - teacher access only)



Here is a great site from a textbook company that can help you with each concept we will study. It takes a closer look at each concept. Combine the concepts with the notes I have given you to help you create a better idea of why enzymes are so important and fascinating for scientists.

LabBench Interactive on Enzymes

For extra credit, show me the notes you created using our information and the information on this website before our test on Tuesday, May 3rd