(: Happy Monday :)

10.11.10
Today, bio passed by very quickly! When you came into the classroom, we picked up some papers that Mrs. Stein graded for us. We went over everything that we received back:
-The Normal and Plasmolyzed Cells Lab
-Animal and Plant Cell coloring Assignment
-the Cell Structure and Function lab
-the cell quiz that we took on Thursday

Mrs. Stein also went over one of our homework assignments: we must complete a survey about our risks of cancer. The link to the survey is on Moodle. The survey is about how mush we are at risk from different types of cancer, but don't do all of the tests (check which ones girls have and which ones boys have). In total, all of the surveys should take 40-45 minutes, so each survey should take 3-5 minutes to complete.

After we finished going everything over, we quickly added to our notes:

Catalyst
-a substance that speeds up a chem. reaction
-decreases that amount of energy needed to start the chem. reaction
-doesn't get used during the reaction

Enzymes
-proteins that act as biological catalysts
-enzymes are very specific
-subtrates fit like a "lock and key"
-affected by chanes in pH, temperature, subtrate concentration

Then, we took the class's data from the enzyme lab we worked on last week.

group 1: 0.5 C 70 mm
group 2: 18 C 105 mm
group 3: 22 C 10 mm
group 4: 37 C 103.333 mm
group 5: 53 C 102.5 mm
group 6: 98.3 C 7 mm

(Mrs. Stein said that some groups probably made human errors, because the numbers didn't exactly turn out the way they were supposed to. The height of bubbles should be highest at 37 degrees, because that is the temp. that we are mostly at within our bodies (98.6F), and the bubble height should have been shortest at the lowest temp.)

After we collected all of our data, we went over how to make the graphs. The first graph should be the graph of your own group's data. This should be a bar graph.

The second graph should be of the classes data. This is going to be a line graph. Make sure that you write your number correctly on the graph; they must have order, they can't just be written in random places.

At the very end of class (the last five minutes), we got a chance to get started on our homework!

The homework for tonight is:
-Finish the enzyme lab (graphs and analysis questions)
-Begin Cancer Survey (Complete Graph on pg. 55 in unit packet by Wednesday)
- Ch. 10.1 and 10.2 flow map "cell cycle" - g1 to cytokinesis

Have a wonderful day!

P.S. The next blogger is...

David!