Wrap up of Prokaryotic vs Eukaryotic Cells.

We spent a good deal of time today on the two daily questions.  As always, we spent just as much time going over why each of the wrong answers were WRONG as we did finding the correct answers.  Here's what we came up with.

I then had you read trough a passage that summarizes all we have talked about so far in this chapter.  I turned this into a "learning how to learn" activity as I encouraged you to underline, star, highlight, etc the passage as you went to help focus your thoughts.  I did the same as you read and this is what my paper looked like.

I mentioned how pointing out key parts of a passage or key parts of your notes will help you "chunk" all this information into smaller, easier to access compartments in your brain!!

You then had the last couple minutes of class to answer the questions that went along with this Active reading which will be due at the beginning of the period tomorrow.

For a good recap of what we have done so far, the first five minutes of "Mr.Anderson's" podcast is a good place to review!

Cells Notes and Demonstrations so far

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We talked through this slide but I did not require you to write it in your notes.

Cells Crash Course

Friday we watched the Crash Course on Both animal and plant cells.  I had you jotting down main concepts that he mentioned about key terms and we will revisit that as we go to see how these terms all work together.

Thursday October 10th Intro to cells

Thursday October 10th
Well we made it through our first test!!!!!
Last week we finished up the chemical basis of life unit, worked through practice problems on Friday Monday and Tuesday and had our first large exam on Wednesday.  Today we started RIGHT into the next topic which is the Cellular basis of life.  Today's daily questions came directly from one of the first things we learned about the characteristics of life.

Enzyme Notes

Today we got into the notes about enzymes which will explain what happened during yesterdays inquiry lab.
 
Daily Questions were:

Then we started into the notes!

 

 

 

I used the example from yesterday with this - Catalase was the enzyme that broke down Hydrogen Peroxide (H2O2)  We saw yesterday how it was Reusable because after it went through one reaction of converting the H2O2 into water and oxygen, it was still available when we added even more H2O2 to the same liver.

Another example that some groups looked at yesterday was Lactose.  Lactose would be the SUBSTRATE and the enzyme that it binds with is called lactase

The place where the substrate binds to the enzyme is known as the active site.

 

Enzyme Intro Lab

Friday we had our daily question quiz to wrap up Organic  Molecules, Monday you worked on Study Island to finish 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 intro enzyme lab!!  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.



Organic Molecules wrap up and study island set up

Today's daily question was a group activity and we spent about half the class period on it.  The instructions were:

Write out the following table, determine which students accurately described the organic molecule correctly and put a star by them.  Those students that did not – Please “tell them” (as if you were grading this paper), what they did wrong and which organic molecule they DID describe. 

I split you into groups then and assigned you each a student, you were to tell me first if they were right or wrong.  If they were right - you were to tell me what specifically they said that was key, if they were wrong you also made notes.  This is what we came up with!!

 

 

After that I had you log on to your Study Island accounts.  We will be using Study Island throughout the year.  Two assignments have already been posted and you will get to work on those tomorrow after the daily question quiz.

 

The website is www.studyisland.com

Username:  FIRSTLAST.ECASD

Password: 0000StudentID

 

It will prompt you to change your password.

 

You'll go to MY CLASSES and the drop down menu you should see Biology (evrard)

You will then see the current assignments

When you click on an assignment ALWAYS look at the Additional Info for any special instructions for each assignment.

Organic molecule Wrap up

Wednesday September 25th

.Looking at the following chemical formula, what kind of biomolecule would you infer this to be?  Why?

               C₁₉H₂₈O₂       

this is an example of lipid.  I know this because there is a large amount of Carbon and Hydrogen.  Some of you put Carbohydrates because it has carbon, hydrogen and oxygen but that is incorrect.  While carbohydrates are made up of these same three molecules the RATIO is much different.  Carbohydrates would have MUCH more Oxygen (usually as much oxygen as carbon)

Proteins have MANY different functions – in fact proteins are pretty much involved in ALL cellular functions in one way or another.  The structures of these proteins are incredibly complex.  First, what subunits (monomers) make up protein?

Amino Acids

Next, what determines the function of different proteins?The STRUCTURE directly determines the proteins function.  How the amino acids interact with each other and fold on top of each other determines that structure.

We finished out the Organic Molecules section then I had you complete your introductory activity for a grade

here were the notes for today.

Lipids and Proteins

These were the daily questions - we spent a while tearing them apart again to get you used to the format that keystone
exam questions tend to come in.  Notice on the second one the correct answer is Dehydration synthesis, if the arrow had been pointing the other direction (like the green arrow) it would have been hydrolysis.

We used today to try and just plow through some notes.  I realize this stuff is getting a little dry, but you will see how this all works together soon!!

here was a model we used of a lipid..... lots and lots of carbons bound to hydrogen!!

Look at how many more bonds are found in a lipid molecule vs a carbohydrate

Some of you listened to the following podcast about Jello

Condensation reactions

Friday we had our daily question quiz and wrote down a couple slides of notes that we then worked through today... here we go

Monday September 23rd

Carbohydrates, proteins, and nucleic acids are three examples of polymers found in living things.  Which characteristic do they all share?

A.  Their molecular structures are the same

B.  They are formed from the same monomers

C.  Their synthesis is driven by condensation reactions
D.  The bond configurations between their monomers are the same.

Other than a source of energy – what other functions do carbohydrates have?

Stuctural support (cellulose and chitin) 

Cellular recognition

Which statement BEST describes how starch is formed from glucose molecules?

A.  Glucose macromolecules chain together to form starch monomers

B.  Glucose monomers chain together to form a starch macromolecule

C.  Glucose macromolecules dissolve and reform into starch monomers

D.  Glucose monomers dissolve and reform into a starch macromolecule

One group would take off an OH, the other an H

What you created was a disaccharide and water (which is
why its called a condensation reaction.)