2. Organic Chemistry is the chemistry of Carbon!
Organic Chemistry vs. Inorganic Chemistry
C, H, N, O, P, S All Elements
Large # of Atoms Small # of Atoms
Associated with Life Associated with Environment
NaCl
Organic Chemistry
3. Carbon can form many bonds! Valence=4
Can store/release lots of energy
Carbon can build large and diverse molecules
Carbon
4. Functional Groups
Groups of atoms that bond to the
“carbon skeleton”
Determine the properties of organic
molecules
Behave consistently from one
carbon-based molecule to another
12. Most organic molecules are macromolecules (Really Big!)
Macromolecules are formed by a process called polymerization
Biological Macromolecules
13. Large compounds are constructed by joining together
many smaller units….
Small Units: Monomers (Basic Unit)
Polymerization
Large Units: Polymers (Many Units)
Polymerization
14. Monomers Polymers
Process called Dehydration Synthesis
Many bonds formed by removing water
Energy Stored
Animation
Dehydration Synthesis
17. The compounds of life are all carbon based organic
compounds!
There are 4 groups of organic biomolecules found in all living
things:
•Carbohydrates
•Lipids
•Proteins
•Nucleic Acids
Organic Biomolecules
31. Lipids: Triglycerides (fat)
Building blocks include:
1 Glycerol a 3 carbon molecule
3 Fatty Acids long chains of Carbon with a single carboxyl
group
32. Lipids: Triglycerides (fat)
Fatty Acids:
Saturated fatty acids contain carbon to carbon single
bonds and the maximum number of H atoms
Unsaturated fatty acids contain 1 or more carbon to
carbon double bonds and fewer than the maximum
number of H atoms
34. Lipids: Triglycerides (fat)
3 fatty acids are
joined to glycerol by
dehydration synthesis
Strong covalent bond
called ester linkage
Fats store concentrated energy in the many C-H bonds
Also provide insulation against cold, protect internal organs,
provide waterproofing
38. Protein
Most abundant and diverse molecules in living cells
Contains C, H, O, and N
Carboxyl group
Amino group
Building blocks are
called amino acids
Polymers of amino
acids are called
Polypeptides
39. Protein: Amino Acids
Amino Acids:
• Building blocks of proteins
• Central carbon atom
• Hydrogen atom
• Amino group
• Carboxyl group
• R group (variable structure)
40. Diversity of R groups
Varied chemical properties
and interactions
41. Protein: Peptide Bonds
Two amino acids joined
together by dehydration
synthesis
Strong covalent bond
called peptide bond
Bond forms between C of
carboxyl group and N of
the amino group
Two amino acids joined
43. Protein: Polypeptide
Many amino acids joined by
peptide bonds
Primary structure (sequence of
amino acids) is determined by
genetic code
Tertiary structure results from
amino acid chain folding back
on itself. Results in globular, 3
dimensional molecule
45. Structure in organisms: collagen, connective tissue, keratin
Hormones: regulate body functions
Movement: major role in muscle contraction
Transport: through cell membrane, and O2 in blood
Enzymes: catalysts that speed up chemical reactions
Protein: Functions
46. All complex proteins can be
denatured!
Change in pH or temperature
Shape is lost
Function is lost
Function can be restored if
conditions are restored!
Protein: Denaturing
47. Contain C, H, O, N and P atoms
The primary function of nucleic acids is to
store and transmit genetic information!
Found in the nucleus of eukaryotic cells and
in the nucleoid region of prokaryotic cells
Nucleic Acids
48. The building blocks of nucleic acids
are called nucleotides
Nucleotides contain 3 parts:
1. 5 carbon sugar (pentose)
2. Phosphate group
3. Nitrogenous base
Nucleic Acids: Nucleotides
Two nucleotides are joined together by dehydration synthesis
Strong covalent bond called phosphodiester linkages link the
phosphate of one nucleotide to the sugar of the next
nucleotide.
49. Nucleic Acids: Nitrogenous Bases
Ring-shaped carbon and nitrogen molecules
Purines are double rings: Adenine and Guanine
Pyrimidines are single rings: Thymine, Cytosine, and Uracil (RNA)
51. DNA
Deoxyribonucleic Acid
Deoxyribose sugar
Bases: (A and T) (C and G)
Double Stranded
Stores genetic information in nucleus
Nucleic Acids: Polymers
RNA
Ribonucleic Acid
Ribose Sugar
Bases: (A and U) (C and G)
Single stranded