Name:_____________________________
Date:_______________ Per #:_______
Study Guide:
Lewis Structures and Biomolecules
What notes should I study to prepare for the multiple choice?
 Notes #10 – Lewis Structures
 Notes #11 – Carbon Chemistry
 Notes #12 – Biological Molecules
What homework assignments are from this last unit that need to be checked before the test?
 HW 3.6
 HW 3.7
 HW 3.8
 This study guide!
What labs have we done that I should review?
 Marshmallow Creative Challenge
 Identifying Organic Compounds
Where can I get the notes or homework assignments I’m missing?
 Mr. Rea’s room
 …or… http://www.envisionacademy.org/blogs/integratedscience/
Concepts to know and understand – Go over your notes a bunch of times, make flashcards, and know this stuff.
 Know the meaning of the following words: valence electron, The Octet Rule, Lewis structure,
anion, cation, covalent bond, skeleton structure, organic, allotrope, glucose, sucrose,
carbohydrate, saccharide, monosaccharide, disaccharide, polysaccharide, lipid, fatty acid,
triglyceride, protein, amino acid, nucleic acid, nucleotide, monomer, polymer.
 Know how to identify the number of valence electrons in a picture, in a Lewis structure, or
from the periodic table.
 Know what the Octet Rule is and how to check it when making a Lewis structure.
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What did G. N. Lewis do?
Know how to draw a Lewis structure for a variety of atoms and molecules.
Know the steps for happy Lewis structure time.
Know what dots mean and what lines mean in a Lewis structure.
Know how to deal with Lewis structures when you have too few or too many electrons to
make octets.
Know how to use the periodic table to find patterns among different elements and their
Lewis structures.
Know how to count the number of carbon, hydrogen, and oxygen atoms in a biomolecule
model.
Know the difference between starch and cellulose.
Know the structural elements of an amino acid.
Know the names of the 4 nucleotides in human DNA.
Know the relationship between the biomolecules (carbs, lipids, proteins, and nucleic acids) in
their monomer and polymer forms.
Practice – Do the following problems as practice.
Biomolecules – Put the following words in the correct spaces: amino acid, fatty acid, monosaccharide, nucleic
acid, nucleotide, polysaccharide, protein, triglyceride.
Monomer
Polymer (Macromolecule)
Clue
carry genetic information
family called “carbohydrates”
Name:_____________________________
Date:_______________ Per #:_______
carry out specific jobs in cells
energy storage in animals
Lewis Structure Practice
Draw the correct Lewis structure for each molecule given. Look for patterns from the periodic table to help you
save time. Follow ALL the steps for happy Lewis structure time!
Basic Molecule
Alternate #1
Alternate #2
HF
HCl
HBr
H 2O
H2S
H2Se
NH3
PH3
AsH3
CH4
SiH4
GeH4
O2
S2
Se2
CH2O
CH2S
SiH2O
CH2F2
CH2Cl2
CH2BrI
Organic Structures – How many carbon, hydrogen, oxygen, and nitrogen atoms are in each structure? What type
of chemical is each?
QuickTime™ and a
decompressor
are needed to see this picture.
# carbons
# hydrogens
# oxygens
QuickTime™ and a
decompressor
are needed to see this picture.
QuickTime™ and a
decompressor
are needed to see this picture.
Name:_____________________________
Date:_______________ Per #:_______
Type of molecule