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4 Macromolecules - Passoutpapers&progressreports .15.2...

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Pass out papers & progress reports Talk about how to study for EXAMS QUIZ over the assigned reading 5.1-5.2 You may use your notes. Macromolecule Notes Lessons 1-2
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Start studying early! Do not wait until the last minute to study – you  will not retain the information. The  KEY  is to practice, practice, practice! Go over vocab and  concepts again and again. “Teach” someone else the concepts. If you really understand  something, you should be able to explain it to someone else without  using any notes.  Make note cards to drill yourself. On one side put the term or concept  and on the other side write the definition or explanation.  Don’t just make the note cards, though, practice with them! Draw pictures, diagrams, and/or use the words and concepts in  sentences to help you remember them. Make up silly sayings in order to remember difficult concepts or the  order of things. (Ex: “King Philip Came Over. . . For “Kingdom,  Phylum, Class Order. . .). It might be silly, but it works!
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Biology Book:  Exploring Life * *Can be accessed through my Web Backpack Objective 4130.04 B: The student understands cell functions involve  specific chemical reactions.  a. Food molecules taken into cells provide the chemicals needed to  synthesize other molecules.  b. Enzymes catalyze both breakdown and synthesis in the cell. 
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MACROMOLECULES UNIT (CHAPTER 5)
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How many  valence electrons  does Carbon have?  (Hint: Carbon’s atomic number = 6) 1 st  energy level:  2 2 nd  energy level:  4 Carbon can make  more than one bond  with more  than one atom; it doesn’t just have to “share” all 4 e-  with one other atom. Question: How many bonds can Carbon form with other  atoms?  Answer:  4
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Carbon can form up to  4 bonds  with other  atoms, including other  carbon atoms, making  an endless variety of  carbon  skeletons
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The pictures to the right represent  molecules. Elements’  symbols  are used to represent  them. Ex:  H =hydrogen;  C =carbon The lines drawn connecting the symbols  represent one  electron pair  being shared  between the two atoms.  Ex: C-H…C & H each share one electron (so  two  electrons are being shared total) Ex: C=H…each share two electrons (so  four   electrons are being shared total)
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Most carbon-based molecules are classified as  organic molecules .
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