Updates

A few things...for class on Wednesday everyone should be preparing a brief summary of the catalase lab results to present to class.  You should state

• your hypothesis
• your procedure, including variables, constants, controls
• your results
• any conclusions you can draw from results regarding enzyme activity

We will wrap up with enzymes on Wednesday.  I mis-identified the reading from the textbook...it is NOT Ch4, but Lesson 4 in Chapter 2 (enzymes).  Sorry about that.

Finally, there was a request to move the biochem quiz to next week so as not to conflict with the upcoming History test. OK.  Quiz on Monday for both sections, so I'm expecting 100% all around, mm-kay?

Almost forgot- you can bring in a 3x5 index card with hand-written notes on ONE side for the quiz.  No excuses now.

Post-Catalase Lab

If you did the full catalase lab today (Squids Friday, Jellies Monday) you should review your data and decide if it supports or contradicts your hypothesis.  You and your lab partners should be prepared to briefly present your data to the rest of the class (so that everyone can hear how the different factors tested affected enzyme function).  If you didn't read the section in the textbook yet you can do that too (see previous post).

There will be a quiz on Biochem at the end of next week (November 13th or 14th).

Enzymes

HW tonight will be to read from the textbook.  The link to download the textbook is in a Google Drive word document called "Untitled Document."  First make sure you have iBooks on your iPad, then click on the link to download the text.  It could take several minutes.

Once you have the book, read Ch 2 Lesson 4 on Enzymes (its not long) on enzymes.  Pay attention to how the shape of an enzyme is essential to its function.  Recall how the 3D shape of an enzyme is determined.

Updated- the reading above is important to do- definitely before the biochem quiz (end of next week).  But your primary focus tonight should be lab prep.  You should have

• a list of all the materials you need
• list of procedures
• a data table or some other place to record results
• and of course, a hypothesis (what will you vary?  what results do you predict?  WHY is the variable affecting the enzyme function?)

Don't forget- today (Thursday) is the LAST DAY I am checking your folders for Q1 homework.  If its not in today its a zero forever!

Link to enzyme video.  There are many others as well.

Protein Folding Lab

HW for tonight- finish the questions to go with the Protein Folding Lab.  When you are done, send them to your Drive folder and create some sub-folders: Q1, Q2.

Also, LAST CALL for Q1 work.  Some of you didn't turn in the Properties of Water or Dehydration Synthesis.

Nucleic Acids

Monday night: Read pp 80-81 on nucleic acids, AND 70-76 on protein structure.

Lipids

HW for Thurs/Friday:  Read and take notes on the section on lipids: pp 67-70.  Pay attention to the way that the chemical structure of lipids determines the characteristics of these molecules.

Carbs

HW for Wednesday night: read and notes Carbohydrates: pp 59- 66.

(note: the text calls dehydration synthesis "condensation."  You can think of it as the monomers condensing into a polymer.)

You should focus on vocab words, as well as details to go in the chart we worked on in class.  Pay attention to how the shape of the polysaccharides affects the role that the molecule fulfills for the cell.  As you read fill in any notes in the outline from class that you didn't get to. 

Dehydration Synthesis and Hydrolysis

HW Monday night/Tuesday night is to finish the dehydration synthesis activity.  Yes, you can Google.  That means you can research info to help you answer the questions, learn more about dehydration synthesis, hydrolysis, etc.

For example, here's a handy animation showing dehydration synthesis and hydrolysis.

Biochem reading

There is a PDF in the Unit 2A folder called "Organic Molecules Reading."  For Monday, read and take notes on pp. 54-57, starting with the summary about water on p 54.  Then focus on the characteristics of carbon and the structure of the functional groups on page 57.