Thursday scribe post

Today In Class
We handed In our 20.2 Pictures and words if you didn't yesterday

Went over Disease of the Day #3 Schitstosomiasis
it is transmitted by snails and is a parasitic worm.

We asked a few questions and took the quiz

Then we Worked on our homework which was:

P12 In Unit Packet
20.3 with double bubble map (due monday)
Postcard (due 11/8)

We then watched a video about malaria in africa showing how it runs rampant in Africa and how it was eliminated in other countrys

and I just missed my bus lol.

Next Scribe is Neal

DeFiNeTlY tHe BeSt ScRiBe PoSt EvArRrRrRrR!!!!!!!!

Monday the 18th: first we got our multi-flow maps stamped for and we turned in our stamp sheets. Than we took answered a few questions about pH levels like, what are examples of acids bases and nutruels and do which has a high (8-14) pH level, which is base, low (0 or 1 to 6), which is acids. or even(7), which is nuetral. Than we took notes and talked about the homework. Our notes talked about the difference of mitosis in animals and plants, like how animal cells have a cleavage furrow (teehee) and plants cells have a cell plate. Next in the notes we talked about what regulates the cell cycle. Cyclins, are proteins that do this. Also, internal regulators, which check that the cell is ready for mitosis, and external regulators, which send signals to the cell to divide, or to divide faster or slower (an example is contact inhibition). Last, we talked about what causes an unregular cell cycle, radiation, Cyclins are messed up, smoking, and other stuff, and the effects of it, tumors, diseases (cancer), or nutrients are removed from other cells. At the end of class we got a few minutes to finish the mitosis lab for the people that are really slow...

Homework: sign up for turnitin.com, and work on your cancer project thing, its due next monday the 25th. Idk if thats everthing i didnt write my homework down........


The Next Scribe is Zach
just kidding, Its Michelle

Highlights of Friday

Mitosis is the division of the cell nucleus.

Prophase is the first phase of mitosis. During this phase genetic material inside the nucleus condenses and the chromosomes become visible, and outside the nucleus a spindle starts to form. The nucleolus disappears,and the nuclear membrane starts to disappear.

Metaphase is the second phase of mitosis. The nuclear membrane completely disappears and the chromosomes line up in the middle of the cell.
Anaphase is the third phase of mitosis. The chromosomes seperate and move along the spindle fibers to the opposite ends of the cell.

Telophase is the final phase of mitosis. The nuclear membrane and the nucleus reform during this stage. Cytokinesis is almost done and the chromosomes uncoil to chromatin.

On Friday we did a mitosis lab where we looked at interphase, prophase, metaphase, anaphase, and telophase. We counted how many of each were in each section of a cell and then calculated the time of them.

These are pictures of interphase and late and early prophase in the tip of an onion

plant.

The pictures show you metaphase and the spindle apparatus that forms during this

phase, and early anaphase. They are also from the tip of an onion cell.

This picture is showing you early telophase and the

cell plate from the tip of an onion plant.

Below is the link of the video that Mrs. Stein showed us of mitosis.

http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__mitosis_and_cytokinesis.html

Homework for Monday:

Read 43-44

Read section 10.3 and UP 52B- 52D with Multi- Flow Map "Causes and Effects of Unregulated Cell Cycle"

Other:

There is a test on Wednesday.

Cancer paper is due 10/25

Set up account for turnitin.com by tuesday.

The next scribe will be:

JR

It's Thursday????

Hey hey hey it's Thursday :)
So today in class we talked a little more about mitosis and we learned this cool way of remembering all the phases ask about it in class if you missed it


Then we took a couple of notes on Prophase,Metaphase, Telophase and Anaphase
since I can't find them on moodle I'm putting the video that Mrs.S showed us:
http://http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter2/animation__mitosis_and_cytokinesis.html

a couple questions that came up in class were:
Q:Are the proteing used in cells the same type of protiens that we eat?
A: Yes and No. The proteins we eat get broken down and are then used by the cells. Think of them as legos. You have a cool lego piece and the little blocks are the protiens used by cells
Q: Telophase in Animal cells vs. Plant cells (not really a question but you catch my drift)
A: In Animal cells they pinch apart and with Plant cells they form a Cell plate in between the two cells, it's baiscially an add-on to the cell wall.

In class we also did a Mitosis lab it started on page 44 in the unit packet and this first lab was baisically understanding mitosis. You can do this at home easily. This first lab was mainly to get us ready for the second one we will be doing tomorrow. It has to do with identifying the stages in Mitosis. The second lab we will be doing in class it starts on page 48 in the unit packet and goes to page 51.

Also, don't forget about your Cancer research paper! don't procrastinate about this! The 25th is a lot sooner than you think! Today we talked about citations within text and that is for example:
tra la la la la (someone's last name and a page number if it's a primary source).
the period always goes after the parentheses and other things that could go in the parentheses if the author is missing:
-A company say you got it from the American Cancer Society
-an abreiviated version of the title
Homework:
1. UP pages 44-51 due at the end of class tomorrow
2. Cancer paper due 10/25/10

in other news: Max turns 4 months today! woooohooo!! <3
and the scribe is.....Angela!!!!

Mitosis is fun

It was a shortened class due to late arrival. But we managed to get in a few things.

 At the beginning we did a star and a wish. Sabina's post was very good and very colorful. After that, we took a lot of notes on the cell cycle. We learned many things, such as the stages of the cell cycle- G1, S phase, G2 and Mitosis. This was interesting. But after all this we got a coloring sheet. This sheet showed the stages of the cell cycle. and we have to color the different parts of the cells, and don't forget to annotate the front side. This sheet was homework but we got class time for it. While doing it we jammed out to Kanye West on the xylophone! What a class! 

The Homework was 

Mitosis color code with annotations

Work on cancer research paper due 10/25

Next scribe has got to be....

Saadia!!! congrats

Extra Credit!!! Shhhh!!!! It's a secret!

Click on this picture and play the Cell Cycle game!  Who is the "supervisor" in the game?  Email me the answer!  Extra credit will be awarded to the first 5 people from each section who email me the correct answer PRIOR to the start of class.  Don't tell anyone. Shhhhh!

Enzymes

Here is the enzyme picture i showed in class. Be sure it makes sense to you!

(: 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!

ENZYME LAB!!!

In class- In class on October 8th we did the enzyme lab! First off enzymes are proteins that speed up chemical reactions in cells. The enzyme we used in this lab was catalase, which is found in blood cells and also some other cells. Catalase speeds up the break down of hydrogen peroxide into water and oxygen.

Enzyme Lab! (pages 24-32 in UP)- In this lab we tested the amount of enzyme activity in different temperatures. You measure the amount of enzyme activity by how high the bubble column is in the test tube. For part A we had to test how the catalase works. You had to set up 3 test tubes with two marks on them. One mark 1 cm from the bottom of the test tube, and one mark 5 cm from the bottom of the test tube. In test tube #1 we put catalase in up to the first mark and hydrogen peroxide up to the second mark. Then you had to measure how high the bubbles rose from the second mark in millimeters. Then we did the same thing with test tubes 2 and 3 but with different contents. Test tube 2 had water to the first mark and hydrogen peroxide to the second, and test tube 3 had catalase to the first mark and sucrose solution to the second, and recorded the height of the bubbles for all of them. Once we knew how the catalase worked we went on to part B. In part B we tested how the catalase worked in different temperatures. Each group was assigned a different temperature and you had to get your water bath to the correct temperature. If you had a hot temperature you heated it up, and if you had a cold temperature you had to put ice cubes in it to cool it down. Then you had to fill the test tube to the first line with catalase and set it in your water bath so the catalase got to the correct temperature. We had to monitor the temperature of the catalase with a thermometer until it was at the given temperature. When it was at the right temperature we put hydrogen peroxide in the test tube up to the second mark and measured how high the bubbles rose. If you had enough time you were supposed to do another trial for more accurate data. Here are some pictures from our lab:

Our test tubes...
Catalase reaction to hydrogen peroxide...
Cooling down our catalase to 15 degrees Celsius...
Our catalase reaction at 15 degrees Celsius...

Homework for the weekend-

Enzyme lab pages 26-32 in UP-due tuesday- Finish all of the analysis questions on UP pages 27 and 28 about the enzyme lab we did in class. Some questions and the graph you will not be able to do until Monday because we are collecting class data in class on Monday.

Read 10.1 and 10.2-due tuesday-Read 10.1 and 10.2 in your science textbook and make a flow chart for "The cell cycle." Help on how to do it can be found on moodle on Mrs. Steins' page. Click on October 12th on the little calendar on the right side of the page for information on how to do it. You can also find information on the format of the flow chart on moodle or in your blue reading strategies packet.

Extra credit! There are still some more days to get extra credit at many places:)

The next scribe is Sabina!

Jacob is SO sorry

So today in class we got a stamp for the diffusion lab and went over it. We went over what Osmosis is. Osmosis is when the water in a cell moves from higher concentration to lower concentration out of the cell. Then we went on to our normal and plasmolyzed cells lab. In the lab we put 2 to 3 drops of regular water on an Elodea leaf and on a seperate slide we put 2 to 3 drops of salt water on the Elodea leaf. What happened to the salt water leaf was that the water in it diffused out of the cell to get to the lower concentration of water on the outside. When this happened the chloroplasts collapsed in on each other to form a big blob of them. The structure of the cell didn't chang because plants have a strong cell wall that nothing could change its shape. Look at page 211 in your biology book.

The homework is to finish the lab on UP pages 36-39

Also begin the pre-lab 

The next Scribe is Madison

That Totally Awsome Lab Experiment

Today in class: Mrs. Stein collect our Coloring Cells packets and she gave us stamps for the Diffusion Pre Lab and the 7.3 notes on Deffinision maps. During class time we Set up our Diffusion Labs located on Up34-35. We discussed this lab and finishednnot on cell functions with the Cell membrane and then continued our notes with what we read in 7.3. Diffusion, Osmosis, facilitated diffusion and active transport were all discussed and notes were taken down on these words. Then we answered questions on our lab experiment and the questions we didnt finish were for homework. Class time was used well!
Notes:

Homework:
1. Diffusion Lab Up34-35 due tomorrow
2.Extra credit on line
3. Quizzzzzzzzzzzzzzzz Tomorrowwww!!!!!!!!!!!!!!!!!!!!!!!!!!!

Next scribe is Jacob R.

Cells ppt (ch 7) for moodle

What we did in class today...
We finnished the powerpoint notes (Win i got it on... just win)
We turned in our 8.1-9.1 "check my understanding" notes
and lastly we did our prelab and worked on new HW

Cells ppt (ch 7) for moodle

View more presentations from Deb.

Homework

Further explore @ vocab word using a "definition map"... possible words are either... Entocytosis and Facilitated or... Molecular Transport and Osmosis depending on what row you are in... i believe it is row 1, 3, 5, 7 for the 1st two words and 2, 4, 6 for the last 2 words

Color Codes and annotations

read 7.3 with definition map questions

diffusion prelab

QUIZ THURSDAY!!!!!

EDIT: Next scribe is Krystian

Something about cells

TODAY IN CLASS: Today we went over the functions of some organelles and what they looked like. We also got homework that I will list at the bottom of this post. We began to work on a color coding packet which is homework. We shortly talked about the similarities and differences between plant and animal cells.

Other things like HW: -Do color coding with annotations in the color coding packet.

-Read Pg.226-228 and Pg.250-251 and do check my understanding,make one row for things you knew, one for things learned, and one with a minimum of 3 questions.


the next scribe is Daniel (did I spell that right?)

It's Almost Friday!!!!

Above are some pictures of what we talked about in class and what we veiwed in our lab.

IN CLASS:

*First, we showed Mrs. Stein our homework from last night. Which was a pre-lab on page 8 of our packets, and our bubble maps for chapter 7.1 in our text books. Mrs. Stein also stamped our stamp sheets.

*Next, we looked over Michelles's blog from yesterday and did stars and wishes

*Then, we took notes on our new unit that we started yesterday: Types of cells

*Some people took a microscope test to see if they could get a slide in focus within one minute (not many people did well :P)

*Lastly, we began our lab- UP 9-14

NOTES:

Major Cellular Regions:

*Plamsa Membrane - outer boundary of a cell

*"Nucleus" - contains DNA

*Cytoplasm - gel-like substance between the cell membrane and nucleus

*Cyto- Cell

*Plasm- Liquid

HOMEWORK:

*Read 7.2 with organelle chart- due on Monday

*UP 9-14- due Monday

*Extra Credit

ABOUT THE LAB:

For the lab, we got into our groups from before during the Rip-o-meter lab. Then, we took a slide, the first one was of an Eloda Leaf, and then put it under the microscope and looked at it under high power. After that, we recorded a picture of what we saw and gave the picture a title and wrote down the magnification that we veiwed it under. Next, we answered some questions about what we saw. For the slide after that we did the exact same thing except we put a drop of iodine on the Eloda Leaf. The slide we were to observe after that, was of a human cheek cell. However, most of us (including my group) did not get a chance to complete the whole lab.

HAPPY ALMOST WEEKEND AND HOMECOMING!!!! :)

Our next scribe is Jose!!!

Wednesday, September 29

Beginning of Class:

• Once we have settled down, everyone has gotten a Student Summary Detail Report (basically, your grade report). If you had any questions about this, you should have a talk with Ms. Stein in private.
• After that we have talked about the cluster map here on the blog and that someone in the middle of the US has checked it out .. creepy.. To make it even weirder Mr. Sheller comes in the room with one eyebrow cocked and looks over us and then leaves.

• After all this commotion we have all picked up our new Unit 3 Packet and the blue assignment sheet if you didn't get one earlier.

The New Unit!!

• The new unit is about cells. And the theme is cancer. What is cancer? Cancer are mutated cells that can divide/multiply out of control. This process is commonly known as mitosis.

• The class has brainstormed for a minute of what we knew about cells. After that we shared our thoughts with the class.
• After we got the general idea, we went over a couple power point slides Mrs. Stein has put up on the smart board. It mainly discussed the levels of organization, the cell theory, and cell specialization. It was basically a review but you should get the notes from a friend just in case.

Microscopes

• Do you remember we had to rate ourselves on our test on Tuesday of how we can perform with a microscope without looking over the guidelines in our packet? Well, after we took our notes we were put into assigned groups (so there is one person who knows extremely well how to handle a microscope and one person who can use some more help) and practice how to use the microscope.

Homework and Upcoming Quizzes:

1. WE HAVE A QUIZ TOMORROW OF HOW TO HANDLE A MICROSCOPE WITH A SLIDE!
2. We have to read 7.1 and take double bubble notes. You were to compare Eukaryotes Vs. Prokaryotes.
3. Moodle was down yesterday so you still have today to finish any discussion questions that you haven't done so already.
4. Rememeber to do extra credit! Only one visit counts for points but volunteering more for fun won't hurt!

The next scribe is Ariana