scribe 10/31/2011

Hola clase de Biologia!

En clase dos con Mrs. Stein, hay muchas actividades. Primero, todos de los estudiantes vuelven los correciones de el concurso y UP 13-18. En clase los estudiantes miran los bandejas con los bacterias y escribir la informacion por los preguntas en UP 13-18. Despues los estudianted escriben el informacion por la enfermedad por el dia. El tarea es leer el capitulo 35.2 en el libro de text, el vencimiento es meircoles.

Hi bio class!

Today in biology class period 2 we did a lot. First everybody turned in the quiz corrections and reviewed the unit packed page 13-18. Then we looked at our trays with the bacteria we gathered on friday and put in a sealed tray to grow over the weekend. Using the information we got from the lab we further completed the unit packet page 13-18. The homework is to read and take notes on chapter 35.2 in the biology textbook. It's due on Wednesday.

http://www.carnicom.com/MOLD12.JPG

Scribe 10/28/11

Hey Everyone!

Today in class Mrs.Stein checked in our homework and gave us a stamp. She went over the answers with us before we discussed the disease of the day. First, we finished Schistosomiasis from yesterday. This disease is vector born and associated with snails. It affects the urinary system. The disease of the day was Influenza. It is caused by a RNA virus. Since the flu is a virus the best way to treat it is to prevent the spread of it.

At the end of the day we set up two labs that we will be doing on Monday. In the first lab we tested three surfaces. We then swabbed the cue tip on its proper quadrant on a dish. On Monday we will be looking for bacteria in these quadrants. In the second lab we put three antibiotics in the agar. We will observe the effects of the antibiotics.

Homework!
up 13-16
up16-18

Scribe 10/27/11

Hey !

Today we showed Mrs. Stein our homework and then got a spider stamp on our NEW stamp sheet! We then discussed section 20.3 and filled out a detailed double bubble map combining the classes homework into one map. After this we reviewed, before finally taking the quiz. After the quiz we then went over the 3rd Disease of the Day.

^^This is the double bubble map the class put together. Everything on the left(green) is what is specific to Bacterial Disease, and everything on the right(orange) is what is specific to Viral Disease. Everything in the middle(red) is characteristics that both types of diseases share. We also gave a list of specific types of Viral diseases, and specific types of Bacterial diseases too.

Viral:

• influenza
• HIV
• Herpes
• all kinds of pox

Bacterial:

• Cholera
• Strep throat
• Meningitis
• TB
• Clamydia

We reviewed anything anybody had questions on and if you still don't understand any of these concepts, watch this! :)

Biology - Chp 19 - Bacteria And Viruses - PowerPoint

View more presentations from Mr. Walajtys

After the quiz we reviewed a little bit about the disease of the day, but we didn't get far because of rushed timing. The disease of the day was Schistosamiasis. Schistosomiasis is a vector born disease that is transmitted by snails.

We didn't get time to completely finish up this idea but hopefully we will tomorrow!

Homework for tonight:

• UP 12

Hope this helped with anybody's understanding! See ya tomorrow ( :
THE NEXT SCRIBE WILL BE.. SAM!

Bacteria!!!

Today we discussed BACTERIA!!! Here are the notes from class...

Bacteria Notes 10/26

View more presentations from Deb.

We also did our DISEASE OF THE DAY! Cholera is a bacterial disease that causes terrible diarrhea. The bacteria attacks the intestine prevent it from absorbing water. The result in the individual will die of dehydration within a matter of days. The disease is spread by contaminated water and is more common in parts of the world with poor sanitation. Fortunately, we have antibiotics that can treat cholera if they are administered early enough!

After our discussion of bacteria, we began a video on bacteria. It is important to remember that not all bacteria are pathogenic. Many bacteria perform countless useful tasks for us. Bacteria are used for food production, they aid in our digestion, and they play an important role in the ecosystem.

Remember... bacteria are EVERYWHERE! There are more bacteria in your body than there are cells in your body! They are tiny and they reproduce very quickly.

OUR NEXT SCRIBE WILL BE KRISTINA R

Class 10/25/11

One thing we talked about in class today was Epidemiologists (just incase anyone didn't catch this Mrs. Stein was going to be an Epidemiologist but instead she is here with us!)(An Epidemiologist is a person who studies infectious diseases.) The first Epidemiologist was a British man named John Snow. In 1854, whenever someone got an infectious disease they thought their god was putting a curse on them. But John Snow did not believe this and wondered why the disease was spreading. He made a map of his town and traced the infectious disease to the Broad Street pump, and figured out that the virus was spreading through the water.

Another thing we went over in class today was the correct answer for the lab we did about the infectious disease that went around the school by various people. Here is the correct answer:

Mr.Paek

(science class)

Heather

(drama club)

Ed(carrier)

(bus 37) (bus 37) (math class)

Mr.Wegley Laura Mrs. Dillion

We also talked about some ways to prevent from getting an infectious disease. Some ways are paying attention to your surroundings, carry around Purell, don't share drinks, and most importantly, wash your hands after you use the bathroom.

What is a VIRUS?

-may be pathogenic

-may spread quickly

-NOT a cell

-made out of protein and genetic material

-not living!

-parasites rely on a cellular(they attack cells themselves)host to exist and replicate

-genetic material is not in nucleus(DNA or RNA)

-do not metabolize (use energy) or respond to stimuli

-consist of nucleic acid surrounded by a protein coat called a capsid(protein all viruses are made of)

-genes are expressed by using the machinery of the host they infect(gene expression=making proteins

Viruses come in a variety of shapes:

1. Bacteriophage

2. Tobacco Mosaic Virus

3. Influenza Virus

SORRY THIS POST TOOK UP SO MUCH SPACE!

THE LYTIC AND LYSOGENIC CYCLES:

Extra credit

Over the weekend, i went and i did the extra credit. For the extra credit, i went to the tyner interpertive center in the glen and i collected two types of grass seeds. The types of grass seeds i collected was Indian Grass and Little Blue Grass seeds. While i was there i learned alot and collected a lot of seeds. I learned that orchids can grow in the praire!

This is the Little Blue grass

This is the Indian grass

When the seeds were collected they looked like this....

this is the Little Blue Grass seeds This is the Indian Grass seeds

Class of 10/

     In class today, we talked about the deseise of AIDS. AIDS stands for Acquired Immune Deficiency Syndrome. AIDS destroys your body's ability to fight viruses by weakening and even destroying your immune system. The fist stage of AIDS is actually not called AIDS, but HIV. HIV stands for Human Immunodeficiency Virus does essentially what AIDS does just not at the same speed, or power. You can get HIV/AIDS in three different ways: HIV positive blood mixing with your blood, unprotected sex with a person who was the virus, or genetically at birth. AIDS is a problem through out the world, but especially in the continent of Africa, where an epidemic of AIDS is killing people left and right.
     

    

AIDS DESEISE ATTACKING T-CELL 

     AIDS kills people by destroying their T-Cells; an immune cell meant, and needed, to fight of deseise. Viruses that would be easily fought off, now can become deadly to the person infected. HIV/ AIDS is never technically what killed a person. It killed off the persons immune system, and then the person became sick to another virus, which they could not fight off, that killed them.

Muddy point 2

I personally am confused on mitosis. What is the difference between prophase and anaphase?

Comment for Makenzie from Luke

Alright, so chromatid is a genetically made up strand that the chromosomes separate on up and down during metaphase and chromatin is a kind of liquid that is made up of different proteins which are created by the cell during its division. Hope that helped!

Cell Cycle Extra Credit!

Hey Guys... this is a REALLY fun game about the cell cycle... I hope you enjoy it! Click on this link to play it. WHO is the "Cell Division Supervisor" who is controlling everything in the game? First 3 people to EMAIL me the answer will get EXTRA CREDIT! Enjoy!

muddiest point

I was wondering how mitosis started first? I don't understand that well how they start...thanks !!

muddiest point

My Muddiest Point!

What is Golgi Bodies? What is their function? Also What is the difference between nuclus and nucleous?

thanks guys

janie

Muddiest Point

Hey guys I am confused from chromatin and chromatid. If someone could help me understand this better that would be great! Thanks!

Muddiest Point Comment for Tanya

Hey Everyone,

Sorry comments button did not work for me. Chromosomes look like an x and chromatin look like tread all over the place.

--Sonya Ajani

Muddiest Point!

Hey guys! The part that confuses me the most is the difference between the Rough ER and the Smooth ER. I know that ribosomes are in the Rough ER. But, why isn't there any ribosomes in the Smooth ER?
Thanks!

Muddiest Point

Looked at the time and realized this is late :( Oh, well. What i've been having trouble with is remembering the difference between metaphase and anaphase. Is there any trick i can use to remember?

Muddiest Point

Hey guys! So for my muddiest point i am having trouble remembering the stages of interphase. Do you guys have any tips/tricks to help me remember them a little better? If you do that would really help me. Thanks!!

Scribe 10/13-10/14

HOMEWORK 10/13/11:

• muddiest point post(Friday) and comment(monday)
• cancer paper due 10/25
• sign-up at turnitin.com
• review mitosis

LAB:

In the lab we had to find a example of the stages of mitosis and interphase

IF YOU DIDN'T FINISH UP PAGES 44-47 FINISH THEM!!!!!

HOMEWORK 10/14/11:

• Finish time for mitosis lab (up pages 48-51)
• Muddiest point post(friday) and comment(monday)
• Read 10.3 and up 52b-52d "cause and effect of uncontrolled cell division" multi flow map

HOE TO DO A MULTI FLOW MAP

1. place paper landscape side
2. draw box in center of paper
3. write "cause and effect of uncontrolled cell division" (your subject)
4. look in 10.3 and 52b-54d to find causes and effects
5. places causes on left side of center box in other boxes
6. place effects on right side of other boxes Causes and effects DO NOT have to match
7. for example go to moodle and under reading strategy resources for a picture and example

TIME FOR MITOSIS LAB:

In this lab we took three sections of an onion root under a microscope and counted how many interphase, prophase , metaphase, anaphase, and telophase was seen.

then we put the data into a chart

under the first column labeled first area:

interphase: 128

prophase: 31

metaphase: 0

anaphase: 1

telophase: 10

the second column labeled second area:

interphase 306

prophase 8

metaphase 5

anaphase 9

telophase 5

the third column labeled third area:

interphase 95

prophase 13

metaphase 5

anaphase 1

telophase 3

That's all people

HAPPY HOMECOMING!!!!!!!!!!!!!!!!!!!!!!!!!!!

Muddiest Point

My muddiest point seems to be the organelles i can never tell the difference between ER and Golgi Bodies they just look too similar

Reply to Sydney's question

I am sorry that I CANNOT REPLY to your blog entry. My account says that I "do not have access to this page" I want to help with your question anyway so here it goes!

ADP is Adosine Diphosphate. When it enters the cell it goes to the mitochondria to convert it into the ATP Adosine triphosphate. It does this by having it react with other chimacals that break the bond it has. When this happens an extra phosphate atom is taken from another ADP molecule and makes ATP. ADP has properties that allow it to store energy but not release it. When the bond is broken the energy is useable, and is put the form of ATP which can let the energy be used. It is then sent by the E.R. to different parts of the cell that then use that energy to preform the function of the cirtain part of the cell.

Muddiest Point

Hey Guys!

I don't understand the difference between chromosomes and chromatin. Can someone explain it to me?

Problem?

Yes, I am having a problem determining the cell phase when they are at a point where they look like they are inbetween 2 phases.

Interphase?

How is interphase a part of mitosis if the cell is not in the process of dividing? Or is it in mitosis at all?

Muddiest Point!

Hello, fellow classmates. It is I, Luke. What I am confused about is are the different processes and how it all works cuz it all seems the same but im lost in what process does what and the different phases.


Thanks!

Muddiest Point (Comment)

This is my comment for Samantha.
Which specific structures are you talking about? Ribosomes make protein, mitochondria convert chemical energy into food for the cell to use,and the nucleolus is where the ribosomes are found. The nucleus is the control center of the cell and the cytoplasm works with it. Hope this is helpful!

Muddiest Point

Hi guys! I'm just a little confused about how to tell the difference between the rough E.R, the smooth E.R, and the golgi bodies. Help???

thanks, Kristina

Cells Muddiest Point

Hey, i'm still confused about how diffusion, osmosis and pH affect the cell. Please describe in detail otherwise I won't understand, thanks! Hope you can help!

Muddiest Point

Hey Guys!

I am having trouble understanding is the ATP and all the parts of the Photosynthesis.

Thanks, Sydney

Muddiest Point

hey guys! i'm having trouble understanding daughter cells, and sister cells, and how they operate. I tried reading through the chapters a couple times, and looked it up online. I'm still a bit confused. Can someone explain them to me?

Thanks- Olivia

Muddiest Point!!

Hey Guys!
I do not understand molecular transport at all and I also don't understand what the point of the whole ATP and ADP process is, so if someone could explain these two things to me, then it'd be great :) Thanks!

Muddiest Point

Hi Everyone,

I am a little confused on what ATP and ADP is, what is the energy transfer,
and how the cell uses it.It would be very helpful if someone could explain this to me!

Thanks!

Muddiest Point

Hi guys, I'm still a little confused on the process when ADP turns into ATP and when the energy is used.

Muddiest Point

What i don't understand clearly is what exactly is Rough Endoplasmic Retuculum. My understanding of it is it transports the proteins throughout the cell but i feel there is more then just that they do. Thanks!

Muddiest Point

Hi! My muddiest point has to do with Molecular Transport. What happens during it and why is it important? I am also a little confused on how diffusion works. How do the particles move from high to low concentration?

Thanks.

Scribe 10/12/11

Hey Guys!
Today we went over the homework, talked about the cancer paper a little, and did an activity on mitosis.

Homework:

• UP 44-47
• Cancer paper- 10/25
• Get a turnitin.com account- By Friday
• Muddiest point post- By Friday at midnight
• Muddiest point comment- By Monday
  

Part of our homework is to get a turnitin.com account, which is a website where you electronically submit your work and it checks for plagiarism. In this case, we will be submitting our cancer papers to turnitin.com, but also turning in a hard copy to Mrs. Stein.
To get an account:
Click on "New Users Here" button. Click on the "student" button. Our class ID is 4461445 and our enrollment password is Stein. Continue entering your name and email address. Create a password and choose a secret question. Click I Agree-Create Profile, and your done!

The Mitosis activity
We got together in our lab groups and got multiple pictures of the stages of Mitosis. We were only allowed to use our maps that we did for homework and we had to put the stages in order.
Here is a website with an animation of the process of mitosis in an animal cell and a short description for every stage.
http://www.cellsalive.com/mitosis.htm

Thanks! See you guys tomorrow! :)
THE NEXT SCRIBE WILL BE.. JANIE!

Muddiest Points!

Hey guys! I don't really understand the differences between the rough and smooth endoplasmic reticulums. Also, I would like to know how the cytoskeleton, cytoplasm, and lysosomes look like in a cell diagram when labeling them. It would also be great if someone explained the steps of mitosis in a more simpler way so it's easier to understand. Thanks! :)

Muddiest Point

Hey guys! So my muddiest point would have to be what exactly eukaryotic and prokaryotic cells are and how they're different. I know we did this in like the way beginning, but I'm still kinda stuck on it.

Thanks!

Muddiest Point!

Hi everyone!

During this unit I was a little confused about what the structures inside the cell do. I have notes on it, but it's still a little hard to follow. If someone could help that would be awesome!
Thanks.

Scribe 10/10/11

Hey everyone!!

Today we took lots of notes on what exactly we saw while doing the plasmolysis lab and the enzyme lab. Here they are...

Plasmolysis Lab

• So imagine that inside of the cell, there is 99% water and 1% salt.
  
• Then, you put that cell into a pool of water, which is 99% water and 1% salt, too. What would happen?? Well, since the combination of water on the inside is the same as the outside, the equilibrium is already reached. However, the cells will still be moving, but evenly (or with no net movement).
• But.... if that cell is in a pool of water with 6% salt and 94% water, water will move from the inside to the outside of the cell because...

THINGS MOVE FROM HIGH (concentration) TO LOW (concentration)!

• Because of that phrase, water will move out of the cell, causing the cell membrane to shrink since when things lose water they tend to shrivel up like you can see in this picture to the right.
• Now, in class we used the red blood cell as an example. What if the cell had 99% water and 1% salt while the pool of water the whole cell is in is 100% water? Water would go into the cell because THINGS MOVE FROM HIGH TO LOW.
• BUT... this time is different. The water will go into the cell and so the cell will expand and since the don't have a cell wall, they'll BURST, which can be deadly.
• That process by which a cell explodes when it is in a higher concentration of water is called cytolysis (cyto-cell, lysis-break open).

Enzyme Lab

• Catalase is most usually found in the blood.
• We would expect catalase to work best, or have the largest amount of activity, at 37ºC (our body temperature, since they are usually found in our bodies).
• Enzymes are NOT ALIVE
• Enzymes are made of proteins, which are also not living and at extreme temperature they get denatured (or broken down).
• What should have happened... The graph for the whole class data should have started off really low and increased so the highest point was at 37ºC and then it would have decreased again... kinda like a hill.

Homework: Finish Enzyme and Plasmolysis labs for tomorrow, finish UP pg 55 and Cancer Survey for tomorrow, and read section 10.2 and do a flow chart for Wednesday.

The next scribe will be: Kasia

Scribe 10/7/11

Today in class we did our Enzyme Lab!

In this lab we had to determine the effects of temperature on enzyme activity. During this lab we used the enzyme which was Catalase and the substrate which was Hydrogen Peroxide Solution. Enzymes are: Proteins that speed up chemical reactions that take place in cells.

Some background information on the lab that we did was... Catalase: Is an enzyme that is found in blood and other cells. It speeds up the breakdown of Hydrogen Peroxide into water and oxygen. Also if hydrogen peroxide is left to build up in the cells, then the hydrogen peroxide turns toxic!!

The Experiment:
During this experiment each lab group had to do different experiments using different materials to find out the bubble activity in the test tubes. This lab took the whole period for our class and was quite time consuming. However, it wasn't that difficult to accomplish the lab. For the results, we did not get group five's results, and the results for group two are a bit off because the average is wrong. Here is a picture of the results. The other two pictures are from the group with 100ºC.




Homework: Finish Enzyme Lab, pages: 24-32

The Next Scribe Will Be: Ereni

Scribe 10/6/11

Hey everyone! Today in class, we took a short quiz on cells and organelles, and we also took some notes, and did a lab!

Homework:

• Finish Lab UP on page 36-37 (page 211 in the book will help)
• Bring goggles to class for tomorrows lab!

Notes: Today we discussed what catalysts and enzyme

s are, and why they're important.

• Catalyst: a substance that speeds up a chemical reaction
• Decrease the amount of energy needed to start the chemical reaction
• After the reaction, the catalyst stays the same way that it started

• Enzymes: proteins that act as biological catalysts
• Affected by changes in pH, temperature, and substrate concentration
• Also makes the reaction faster

Lab Review:

Normal and Plasmolyzed Cells-

Our job was to make two wet mounts. One wet mount was of an Elodea leaf with two or three drops of tap water on it. The other wet mount was of an Elodea leaf with two or three drops of 6% salt water. After we had added the coverslips, we placed them under the microscope to examine the difference. We were supposed to label the cell wall, cell membrane, and chloroplasts in both cells.

Here are a few images of our results:

First Wet Mount- Normal Cell

Second Wet Mount- Plasmolyzed Cell (6% Salt Water)

It is shown that the first wet mount compared to the second wet mount is very different.

Well thanks everyone! Hope to see you tomorrow!

The next scribe will be: Samantha

Scribe 10/5/11

Hello everyone! Today in class we took notes and did a lab.

Homework:

Review for test quiz tomorrow, prelab, finish lab on Up pages 33-35 and remember to bring goggles to class.

Notes review:

Diffusion

• Particles are always moving


• particles move from areas of HIGH concentration to LOW concentration


• Particles move until EQUILIBRIUM is reached


• particles move passively

Osmosis

• DIFFUSION of WATER through a selectively permeable membrane.

Lab Review:
In the lab we did, we tested the diffusion of starch and glucose.

while setting up the lab in the beginning it should look something like this:

Afterwards it should look something like this:

The lab results were that there was iodine in the tube, glucose in the Becker and starch didn't get out.

The next scribe will be... Olivia!

Scribe 10-3-11

This is what we did in class today.

Homework:
We turned in our homework from over the weekend-UP pg. 8-14 and got a stamp on our stampsheet for the organelle chart.

Review:
We talked about the differences and similarities between plant and animal cells.
Plant: large central vacuole, cell wall, chloroplasts
Both: cytoskeleton, mitochondria, cell membrane, nucleus, golgi bodies, vacuoles, lysosomes, endoplasmic reticulum, ribosomes
Animal: centrioles
*However, not all plant cells, such as with the onion cell, have chloroplasts!

And remember-structure determines function!!!!!!

We had small cell quiz with a partner.....and it didn't count!!! Muahahaha!!!!!!

We took a few notes with pictures on organelles.

And then we talked about the homework for TODAY: reading and taking SQ3R notes.

And now you can spend countless hours watching the cat dance.

The next scribe will be LUKE

*continues watching the dancing cat*

Scribe 9/28-9/30

Hello everyone! We had a very fun time in class theother day.

Our homework was to finish 8-14 lab in UP and the chart due monday with 7.2.

Here are some important things that we learned today:

• An important phrase is STRUCTURE DETERMINES FUNCTION: an example Mrs.Stein used was "Is an ice skater built like a football player?"
• We learned the levels of organisms is as followed:

Organism- Dog

Organ System- Respiratory System

Organ- Liver

Tissue- Cardiac Tissue

Cell- Brain Cell

Organelle- Mitochondria

Molecule- H20

Atom- H

Mrs.Stein also asked a very important question...

Why do we care about the Levels of Organisms?

Scientists love to classify, and it is very easy t

o get stuck on the details and miss the big ideas.

Next, we started the Cell Structure and Function Lab. We looked at 5 slides.

One was the elodea leaf,

The next was the human cheek cell:

Then the onion cell:

After that the onion cell with a drop of Iodine:

Next a slide of frog blood:

This lab was very interesting and I enjoyed it very much. Thank you all! Have a magical day!

The next scribe is ....... RACHEL!