Wednesday, November 10, 2010

Tuesday, November 9, 2010


Group Work:
Go to this website:
Read and complete the activity together.

Monday, November 8, 2010

Group Project Strepococcus

My son was just diagnosed with an infectious disease called strepococcus A.

Reply to this entry by telling Ms. Welch:
1. What is strepococcus A?
2. What are the symptoms?
3. What should Ms. Welch do to help her son? Medicine?

Make sure your group members' names are at the bottom of the blog.

Sunday, November 7, 2010

Fart Microorganisms

Methanobacterium smithii-FART!
This bacterium produces methane in human guts. Normal humans fart about 10 - 15 times per day, passing a few hundred milliliters of gas per day. Boys and girls fart about the same amount. Though over 50 percent of this gas is nitrogen, some of the gas is microbially produced, including the gas methane, which is flammable and is also a powerful greenhouse gas. Carbohydrates that cannot be digested by humans, but can be digested by microbes, are the leading cause of farts. Methane is an odorless gas: smells come from dimethyl sulfide and methanethiol. Other gases include oxygen, hydrogen, carbon dioxide, and nitrogen.

Read about more human microbes:

Reply to this post by telling me :
1. one body microbe you read about and
2. why you think it is facinating.