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Thursday, December 15, 2011

Final Review

Remember to complete your study guide!! It does count as a grade!! :)

Here is a link to an extra copy if you need it

Do your best to have it completed by Friday so that you can ask questions if you have them!!

Tuesday, December 13, 2011

Cancer lab

Go to this site. Follow the instructions for the virtual lab.

Tape the
data table onto your next blank page (should be about page 76)

Once you have calculated the percentages, answer the following questions, on the same page.



  • Based on your data and observations, what are some of the Differences between normal cells and cancer cells?

  • Which type of cancer shows the most aggressive growth? Explain.

  • When studying cell division in tissue samples, scientists often calculate a mitotic index, which is the ratio of dividing cells to the total number of cells in the sample. Scientists often calculate the mitotic index to compare the growth rates of different types of tissue. Which type of tissue would have a higher mitotic index, normal tissue or cancerous tissue? Explain.
Need help calculating percents? Do it like this:
Cells in mitosis - first add up all the cells in p or m or a or t = P+M+A+T
Let's say that there is 1 cell out of 20 in mitosis. 1/20 * 100% = 5%
Now there should be 19 in interphase, so 19/20 * 100% = 95%
does 5% + 95% = 100% --> yes, so we're probably doing
it correctly :-)

Thursday, December 8, 2011

Mitosis

BW
List everything you know about Mitosis

Phases of mitosis

Mitosis notes page tape into page 70
Use flash cards at the table to learn the phases of mitosis
Take a set home to quiz yourself

The website cells alive is extremely helpful!

Tuesday, December 6, 2011

review of cell parts/function & transport

Quiz tomorrow!!!!! (on cell parts/function & cell transport)

Use the following slideshows to help you review


Cell Parts & Function



Cell Membrane and Transport


Wednesday, November 30, 2011

Cell Membrane & Transport






Sketch the above picture into your notebook on page 66




The notes for diffusion and osmosis go on pages 67 & 68

Tuesday, November 29, 2011

Water Lab pgs 64 & 65

The unique properties of water lab (this lab spans Mon and Tues)
BW
What is the chemical formula for water?
What does this formula represent?

Watch this
video from the science friday website

Take notes on observations of the water

complete the activities on this
sheet (goes on pgs 64 & 65)

closure -- I placed flowers into colored water overnight. Using vocabulary from the activity, predict what will happen to the flowers.

Wednesday, November 23, 2011

Typhoid Mary Pg 62

We watched Typhoid Mary: the Most Dangerous Women in America today.



Click on the title for information on the program



For bonus points, respond to this post with whether you think she is a victim or villain and why you think so.






Happy Thanksgiving!!!






Tuesday, November 22, 2011

Starch/Iodine conclusion pg 59

Use the following questions to help compose your conclusion paragraph for the starch/iodine lab




  • Based on your observations, which substance moved, the iodine or the starch?

  • How did you determine this?

  • The plastic baggie was permeable to which substance?

  • Is the baggie selectively permeable? How do you know this?

  • Sketch the cup and baggie. Use arrows to illustrate how diffusion occurred in this lab

  • what would happen if you did an experiment in which the iodine solution was placed in the baggie, and the starch solution was in the beaker? Be detailed in your description

  • why is it not a good idea to store iodine in a plastic bag?

Egg lab Conclusion pg 58

These bullet points should be used in creating your paragraph for the egg lab conclusion




  • When the egg was placed in the water, which direction did the water molecules move? Explain your answer

  • Explain the volume of liquid remaining when the egg was removed from teh syrup.

  • Why do grocery stores spray their fresh produce with water?

  • If a shipwreched crew drank salt water, they could die. Explain why

  • If a bowl of fresh strawberries is sprinkled with sugar, a few minutes later they will eb covered with juice. Explain why this happens.