Enzyme Lab

Friday we had our daily question quiz to wrap up Organic  Molecules, Monday you worked on Study Island to take the Keystone Exam Pre-test and then do the Organic Chemistry and Water questions.  Both of those I asked you to answer a minimum of 20 questions.

Tuesday we had our enzyme lab - this will make some of the notes that we took more "real"!!  This was a pretty messy/stinky lab as we were dealing with liver enzymes!!  Here was the introduction.

Some of the pics from the lab are below:

First we looked at the effects of the enzyme
catalase on the breakdown of Hydrogen Peroxide
in cells.  (see Introduction.)

When liver is placed in the hydrogen peroxide
gas is produced (oxygen that is being released)
what is left would be simply water

We then tested different factors that
effect the rate of enzyme action such as
pH and Temperature.  Some reactions
happened faster than others. 

For instance here you can see how changing the pH
changed how fast the reactions occurred.  In this case the
middle reaction (at a neutral pH) worked the fastest.