Sunday, June 17, 2012

Intro Lesson


I will complete my B.S. degree in Microbiology with a minor in Chemistry in August, and over the last couple of years of my college science education, I have noticed that the most basic of principles are the least understood.  Almost every time I would begin a Biology science course, I was relearning the same basic concepts again and again regarding molecular biology.  That is what I hope to do with this blog.  I do not want to go into huge detail, but provide a refresher understanding to the general public regarding these important principles of Biology and Chemistry.


I am not a professional teacher, nor do I claim to be, though I do have some teaching experience.  I have tutored for organic chemistry for two and half years of college.  I have also been an Undergraduate Teaching Assistant for Molecular Biology twice now.


In order to understand molecular biology it is EXTREMELY important to understand the basic principles of chemistry.  Everything we see around us is made of atoms.  Within the nucleus of atoms are protons and neutrons.  Protons are positively charged and neutrons have no charge.  Surrounding the nucleus of atoms are negatively charged electrons.  Electrons are a lot smaller than their counterparts in the nucleus and fly around the nucleus in a circle pattern called an orbit.  Think of the orbit in a similar fashion to how the moon travels around the earth.  Usually, the number of protons equals the number of electrons, so the atom has no charge.   The periodic table represents all the known atoms, but Biology usually uses just a few of these atoms: Hydrogen, Oxygen, Sulfur, Phosphate, Nitrogen, Potassium, Sodium, and most commonly Carbon.  These atoms combine in various different ways to form everything we see around us, and in my next lesson I am going to discuss how this binding occurs.


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