Today in class we had a review on important topics that will be in the test. We went over water and its properties discussing adhesion, cohesion, hydrogen bonds and surface tension.
We also went over basic chemistry and learned how to find the valence electrons of an element without looking at the periodic table for guidance. Using the atomic number, you find the valence electrons keeping note that there are two valence electrons in the first shell and eight after that(electron configuration - two eight rule). Then we went over macromolecules, their structures and properties. We discussed polymers, monosachrides, disacharides, polysacharides, amino acids, proteins, dehydration synthesis and polypeptides.
We also went over DNA and RNA differences. RNA is one stranded and forms protein from DNA. DNA lacks oxygen.
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