10/18/10 scribepost

Today in Biology, we took notes while Mr. Paek lectured and reviewed for the test that we will be having on wednesday. The test on Wednesday will be covering all of unit 3- which is the cell theory and cancer.

Osmosis- high concentration to low water moves through a selectively permeable membrane to balance out the concentration.

Diffusion- particles going from a high concentration to a low concentration until they reach equilibrium

• Cells have contact inhibition, they will continue growing until they come into contact with other cells

Cancer

- uncontrolled growth of cells

-changes in DNA can lead to unrestrained cell reproduction

-cells produce a growth and never stop dividing

OR

--cells do not produce a suppressor protein and it never stops dividing

Shape of cells Anchorage Dependent Contact Dependent

Normal Flattened Yes Yes

Cell monolayer

Cancer Rounded No No

Cell globular

Tumors- 2 types

1)Benign - slow growing, noninvasive, no metastatic (jumping around the body)

2)Malignant - rapid growth invasive, metastatic

At the end of class Mr. Peak handed out a review sheet that will be due on wednesday. You can

also do the unit 3 cell theory objectives that are on the first page of the unit packet to study and to get extra credit. And make sure to remember that we meet in the Lyceum tomorrow because we are having a bio day.

Sts Bio p 4 10.14.10

AGENDA:

- Go over this weekends home work

and important due dates and assignments

- Go over yesterday’s lab

- Assign Scriber =[

-Lab ( follow up from previous cell lab)

HOMEWORK:

- Lab questions, UP-49-51

- Cancer research due 10/25

-UP page 1-3 review TEST IS WED! STUDY!

DON'T DO 10-15 on review

- ( Notes on Defusion Osmosis will be given on Monday 10/18)

IN CLASS:

As class started, we discussed homework, and Thursday's lab if you missed that you can look over Fox’s wonderful scribe. We were told that in the Review for the test Wed. we should do page 1 of the UP and we will not have to do #10-15. Notes on defusion osmosis will be given on Monday 10/18. Cancer research project due on 10/25 ( on whatever cancer you chose)

After we went over the bulk of homework, we were introduced to a follow up cell lab. which was an exciting part of a Friday:) this lab is a very helpful lab to understanding the life cycle of a cell in reproduction. This lab really helps in study which helps you understand which phase is critical for a cell to go through and what changes take place and most importantly HOW LONG DO THE CELLS STAY IN A PHASE.

LAB:

In this lab we:

-use onion root tip cells to locate cells in Mitosis and Interphase

- count number of cells in Mitosis and Interphase

-find lenght of time ( in minutes) needed to complete each phase

-compare data of time needed to complete each phase with those of normal cells, to abnormal cancerous cells

Matrials used:

- microscope

- prepared onion root tip slide

- UP pages 48-51 to record data

Procedure:

Part 1

1-Focus slide under microscope.

2- under low power first view cells in mitosis then high power

3-count and record number of cells in each miotic phase ( prophase, metaphase, anaphase, and telophase) and interphase

4- move the slide to view new area

count and record data of number cells in each phase

5- repeat in third new area

6-total the number of cells counted in each phase

7- find the sum of in total of cells observed and counted in all in this lab

Part 2 - determining th time required for phase

1- number of cells in a phase is an indication of the time spent in that phase in miosis

time spent ininterpahse and miosis can be calculated if total timeof miosis is known. fro an onion root it is 720 minutes (12 hrs)

- formula to use : { time for a phase= # of cells in a phase / (divided) total # of cells in total x 720 mins.

Ex. if you have 109 in metaphase and 980 cells in total the 109/980 x 720 = 80mins.

^ the onion root cells basically looked similar to this and you had to identify whih phase the were in.

After you finish taking data :

answer the analysis questions

and compare cancer cell to the normal cells

these all can be found in UP 48-51

That is basically how class ended with finishing the lab. so study , and finish lab, and review in UP=]

I dont know who “ Destiny” choses ... i dont think there is anyone left .....=]

AGENDA:

- Go over this weekends home work

and important due dates and assignments

- Go over yesterday’s lab

- Assign Scriber =[

-Lab ( follow up from previous cell lab)

HOMEWORK:

- Lab questions, UP-49-51

- Cancer research due 10/25

-UP page 1-3 review TEST IS WED! STUDY!

DON'T DO 10-15 on review

- ( Notes on Defusion Osmosis will be given on Monday 10/18)

IN CLASS:

As class started, we discussed homework, and Thursday's lab if you missed that you can look over Fox’s wonderful scribe. We were told that in the Review for the test Wed. we should do page 1 of the UP and we will not have to do #10-15. Notes on defusion osmosis will be given on Monday 10/18. Cancer research project due on 10/25 ( on whatever cancer you chose)

After we went over the bulk of homework, we were introduced to a follow up cell lab. which was an exciting part of a Friday:) this lab is a very helpful lab to understanding the life cycle of a cell in reproduction. This lab really helps in study which helps you understand which phase is critical for a cell to go through and what changes take place and most importantly HOW LONG DO THE CELLS STAY IN A PHASE.

LAB:

In this lab we:

-use onion root tip cells to locate cells in Mitosis and Interphase

- count number of cells in Mitosis and Interphase

-find lenght of time ( in minutes) needed to complete each phase

-compare data of time needed to complete each phase with those of normal cells, to abnormal cancerous cells

Matrials used:

- microscope

- prepared onion root tip slide

- UP pages 48-51 to record data

Procedure:

Part 1

1-Focus slide under microscope.

2- under low power first view cells in mitosis then high power

3-count and record number of cells in each miotic phase ( prophase, metaphase, anaphase, and telophase) and interphase

4- move the slide to view new area

count and record data of number cells in each phase

5- repeat in third new area

6-total the number of cells counted in each phase

7- find the sum of in total of cells observed and counted in all in this lab

Part 2 - determining th time required for phase

1- number of cells in a phase is an indication of the time spent in that phase in miosis

time spent ininterpahse and miosis can be calculated if total timeof miosis is known. fro an onion root it is 720 minutes (12 hrs)

- formula to use : { time for a phase= # of cells in a phase / (divided) total # of cells in total x 720 mins.

Ex. if you have 109 in metaphase and 980 cells in total the 109/980 x 720 = 80mins.

^ the onion root cells basically looked similar to this and you had to identify whih phase the were in.

After you finish taking data :

answer the analysis questions

and compare cancer cell to the normal cells

these all can be found in UP 48-51

That is basically how class ended with finishing the lab. so study , and finish lab, and review in UP=]

I dont know who “ Destiny” choses ... i dont think there is anyone left .....=]

Sts Bio p 4 10.14.10

AGENDA:

- Go over this weekends home work

and important due dates and assignments

- Go over yesterday’s lab

- Assign Scriber =[

-Lab ( follow up from previous cell lab)

HOMEWORK:

- Lab questions, UP-49-51

- Cancer research due 10/25

-UP page 1-3 review TEST IS WED! STUDY!

DON'T DO 10-15 on review

- ( Notes on Defusion Osmosis will be given on Monday 10/18)

IN CLASS:

As class started, we discussed homework, and Thursday's lab if you missed that you can look over Fox’s wonderful scribe. We were told that in the Review for the test Wed. we should do page 1 of the UP and we will not have to do #10-15. Notes on defusion osmosis will be given on Monday 10/18. Cancer research project due on 10/25 ( on whatever cancer you chose)

After we went over the bulk of homework, we were introduced to a follow up cell lab. which was an exciting part of a Friday:) this lab is a very helpful lab to understanding the life cycle of a cell in reproduction. This lab really helps in study which helps you understand which phase is critical for a cell to go through and what changes take place and most importantly HOW LONG DO THE CELLS STAY IN A PHASE.

LAB:

In this lab we:

-use onion root tip cells to locate cells in Mitosis and Interphase

- count number of cells in Mitosis and Interphase

-find lenght of time ( in minutes) needed to complete each phase

-compare data of time needed to complete each phase with those of normal cells, to abnormal cancerous cells

Matrials used:

- microscope

- prepared onion root tip slide

- UP pages 48-51 to record data

Procedure:

Part 1

1-Focus slide under microscope.

2- under low power first view cells in mitosis then high power

3-count and record number of cells in each miotic phase ( prophase, metaphase, anaphase, and telophase) and interphase

4- move the slide to view new area

count and record data of number cells in each phase

5- repeat in third new area

6-total the number of cells counted in each phase

7- find the sum of in total of cells observed and counted in all in this lab

Part 2 - determining th time required for phase

1- number of cells in a phase is an indication of the time spent in that phase in miosis

time spent ininterpahse and miosis can be calculated if total timeof miosis is known. fro an onion root it is 720 minutes (12 hrs)

- formula to use : { time for a phase= # of cells in a phase / (divided) total # of cells in total x 720 mins.

Ex. if you have 109 in metaphase and 980 cells in total the 109/980 x 720 = 80mins.

^ the onion root cells basically looked similar to this and you had to identify whih phase the were in.

After you finish taking data :

answer the analysis questions

and compare cancer cell to the normal cells

these all can be found in UP 48-51

That is basically how class ended with finishing the lab. so study , and finish lab, and review in UP=]

I dont know who “ Destiny” choses ... i dont think there is anyone left .....=]

Texter on Section 35.2 by Richard (final)

An example of mucus, a non specific defense of the body against pathogens

Non- Specific Defenses are the body's first defense against pathogens. Some examples of these are the skin, tears and other secrations, inflammatory responses, interferons, and fever.

Skin, saliva, mucus, and stomach secretions are part of the first line of defense.

The second line of defense includes inflammatory responses 9where infected ares become red and painful), histamines (increase the flow of fluids such as blood to the infected area), interferons (proteins that inhibit synthesis of viral proteins), and fever (a releasing of chemicals that increases body temperatures).

The immune systems specific defenses kill anything foreign that enters the body.

When a specific defense recognizes, attacks, and "remembers" a foreign substance, that process is called immune response.

An antigen is a substance that triggers an immune response.

Antibodies tag antigens for destruction by immune cells.

The main cells of immune responses are b lymphocytes and T lymphocytes.

A specific immune response has two ways of carrying out its duty: humoral immunity and cell mediated immunity.

Humoral Immunity is activated when a few B cells bind to antigens on the surface of pathogens.

Plasma Cells produce antibodies that are carried through the blood stream.

Memory B cells recognize pathogens and will produce new plasma cells to counter the pathogen should it ever return.

Cell-Mediated Immunity defends the body against viruses, fungi, and single celled pathogens.

11/2/10

Scribe post for 11/2/10 by Junsup Lee

First we got our quizes back.
Mr. Paek collected lab 12-18 which was due today
We went over many disease today.

• Our disease for today was Influenza. This is a picture of influenza virus

Influenza is a virus. It is transmitted by casual contack, saliva, mucus and prevented by vaccines.
40000 people dies in US a year.

• Malaria
  protozoan
  endemic
  Transmitted by mosquito bites and attacks human liver.
  Treated with anti protozoan drugs.
  2.7 million deaths / year
  We watched video about malaria hunter. It showed pictures of paracite. New paracite poped out. Follow this link if you want to watch this video again.
• http://www.youtube.com/watch?v=F_Xi3hnhtbg&safety_mode=true&persist_safety_mode=1
  
• Tuberculosis

Bacteria
Endemic
Spreads through air , person to person
Infects lungs, brain, kidney and spine.
Its treated by anobiotic.
It is treated by GCG vaccine, washing hand2 Billions are thought to be infected with TB. 1.7 million death a year.

• Next we went over UP 19 Debi's StoryShe was infected by Tuberculousis bacteria. The symptoms were coughing, exausted, lost weights. Doctor told her to don't go to school. Medication =anobiotic ( kills bacteria )

Homework

• UP 22-25
• Read section 35.2 and 1st page of 35.
• post card due 11/8/10
• Test 11/9/10

Scribe 11/1/10

HEY first of all, did anyone notice that today's date is actually a math problem???

Are you ready for this? wow, this sounds really nerdy that I noticed this. 11-1=10. Alright, I'm going to stop before I really embarrass myself.

HOMEWORK: Pgs 12-18 in the UP for tomorrow on the lab, take notes (try and use the "tree chart")on Chapter 35.2 in the textbook for tomorrow, and pg 2-3 explains the postcard project due Monday, November 8th.

To start off the class, Mr. P had to pick one scriber out of the WAVES of volunteers. And yes, I was the lucky one. We were sent off into our lab groups after this major descision. We saw the results of our bacteria lab from Friday, which were a little icky. I took a picture with my phone, but it's not uploading to blogger, my apologies. Then we answered the majority of the questions in the UP. After about half the period, we came back to our desks and watched Bill Nye until Bio ended.

P.S. The next scriber is.... JUNSUP.