Blog Feb. 10th
February 11, 2010
What would happen in the cell if cytokinesis never took place after mitosis?
Blog Feb. 9th
February 11, 2010
Why is Interpahse so important in the cell cycle? Why is most of the time spent in this phase compared to the phases of Mitosis?
Blog Feb. 8th
February 11, 2010
What are some important facts that you learned from Dr. Hereford during his Black History Speech that you can use to make the world a better place today?
Stems Feb. 16th
February 10, 2010
Baro (pressure) barometer, barograph, barogram, barometry
Permission Form
February 9, 2010
Permission Form
Dear Parents or Guardians:
The 7th Grade Life Science students are studying the processes of Mitosis and Meiosis; the division of somatic cells and gametes. In order to further our study and to connect the lesson to the real-world, your permission is requested to walk your child to Reflectives during their class time on Thursday, February 11, 2010. Mrs. McClintock, the owner of Reflectives, has volunteered her business space and donated flowers to be transplanted for the New Hope Elderly. Once the flowers have bloomed, they will be transferred to the New Hope Care Center for distribution in early Spring. During this time, students will be provided a lesson to further their understanding of Mitosis and Meiosis and will also be providing a service to the community.
Students are expected to dress for warmth, comfort, and the rain. The outdoor facility is covered, but rain gear may be necessary for travel. Please send gardening gloves, if available.
Please feel free to contact me with questions or concerns at cdavis@hsv.k12.al.us.
_____Yes, I give my child permission to walk to Reflectives during class his/her class time on Thursday, February 11, 2010.
_____ No, I do not give my child permission to walk to Reflectives during his/her class time on Thursday, February 11, 2010.
Contact information:
Student Name______________________________
Parent Name_______________________________
Emergency Contact__________________________
Sincerely,
Chanda Davis
7th Grade Science
Dr. Hereford
February 8, 2010
Is Iron from Soil a Factor in Algal Blooms?
February 4, 2010
Australia’s own distinctive red soils could play a part in the formation of the stinking swathes of blue-green algae often shovelled off east coast beaches in summer.
A QUT team of scientists is taking an in-depth look at how iron, which gives our iron-rich soil its red colour, reaches water to potentially contribute to the algal blooms, which not only have a foul smell, but also make our eyes sting, cause fish kills and smother seagrass.
Their research is centred on the catchment of Poona Creek on the Fraser Coast which drains into Great Sandy Strait — a dugong sanctuary and an internationally recognised wetlands for migratory birds.
Iron is known to be a component causative factor for algal blooms but the mechanism by which solid iron in soils becomes soluble and contributes to coastal algae blooms is largely unknown.
That is why the team from QUT’ s Institute for Sustainable Resources is taking the three-pronged approach of microbiology (biogeochemistry),
Chemists Discover How Antiviral Drugs Bind to and Block Flu Virus
February 4, 2010
Antiviral drugs block influenza A viruses from reproducing and spreading by attaching to a site within a proton channel necessary for the virus to infect healthy cells, according to a research project led by Iowa State University’s Mei Hong and published in the Feb. 4 issue of the journal Nature.
Hong, Iowa State’s John D. Corbett Professor of Chemistry and an associate scientist for the U.S. Department of Energy’s Ames Laboratory, said the findings clarify previous, conflicting studies and should pave the way to development of new antiviral drugs against influenza viruses, including pandemic H1N1.
Two papers published by Nature in 2008 came to different conclusions about where the antiviral drug amantadine binds to a flu virus and stops it from infecting a healthy cell. A paper based on X-ray studies concluded the drug attached to the lumen of the proton channel, the area inside the channel, and stopped the virus by blocking the channel. Another paper based on solution nuclear magnetic resonance (NMR) technology concluded the drug attached to the surface of the virus protein near the proton channel and stopped the virus by indirectly changing the channel structure.
Hong’s research concluded that when amantadine is present at the pharmacologically relevant amount of one molecule per channel, it attaches to the lumen inside the proton channel. But the paper also reports that when there are high concentrations of
Stems for Feb. 9th
February 3, 2010
Oss (bone)—-ossify, ossuary, ossicle, osseous, ossiferais,ossein, ossification you may use other words with the stem oss if you desire.
Blog Feb. 5th
February 2, 2010
List and explain the stages of interphase and mitosis.
