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Chapter 2 Blog:  The Chemical Basis of Life I (Michael)

Page history last edited by Michael Murphy 13 years, 8 months ago

In the first section of this page, you will write a daily summary of that day's class.  For example in  your chapter 2 blog, your first entry should be titled 9/3/10.  You should then write a one or two paragraph summary of that day's lecture, outlining the major points.  In the second section, you are required to add two items (link to a website, video, animation, student-created slide show, student-created PowerPoint presentation) and one journal article pertaining to a topic in this chapter.  A one-paragraph summary must accompany each item describing the main idea and how it applies to the lecture topic.  Please see the PBWorks help guide for assistance embedding video and other items directly in the page.  I will also produce a how-to video on using tables to wrap text around items and other useful tips.  Please see the syllabus for organization and grading details.


A.  Daily Blog


On Friday, I had bio lecture.  The major topic of the lecture were elements and atoms.  We went over protons, neutrons, and electrons.  We also covered s & p orbitals, atoms, isotopes, and the three types of bonds.  The three types of bonds that we covered were covalent bonds, ionic bonds, and hydrogen bonds.  Everything I listed above I have already learned in previous classes.  But I did learn what trivalent and divalent mean.  Trivalent means that an element has the ability to form three covalent bonds.  So divalent means that an element has the ability to make two covalent bonds.  That is what I learned from biology class on Friday.



On Wednesday, we covered the special properties of water.  I learned that hydrogen bonds become stronger when temperature decreases!  We also went over surface tension, molarity, and amphipathic molecules.  I learned that molarity is a unit of measure and that measures moles per liter (m/L).  And amphipathic molecules have both polar and non polar regions.  Also a micelle cell has a hydrophilic head that faces water and a hydrophobic tail that faces inwards.  Once again, Wednesday class refreshed my knowledge of what i already knew.



B.  Useful Materials

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This video is short and to the point about covalent bonds.  It shows single, double, and triple covalent bonds.


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This video explain what isotopes are.  It is simple and easy to understand. 



This article talks about how scientists weigh superheavy elements.  The heaviest element on the periodic table of elements is nobelium.  And these scientists weighed three isotopes of this element. Weighing these isotopes can help find more efficient methods of nuclear-waste disposal.

Comments (2)

Derek Weber said

at 2:15 am on Sep 9, 2010

9/3: Updated. I like the nature article alot. One suggestion would be to include the title of the article and hyperlink that title to the website. To do this type the title, highlight it, select add link, and paste you address. This looks cleaner than including the URL. Nice start.

Derek Weber said

at 2:09 am on Sep 11, 2010

9/8: Updated.

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