What is Organic Chemistry? What do you know about Carbon?
What is Organic Chemistry?
What do you know about Carbon?
Carbon Compounds (2.3)Organic ChemistryCarbon has 4 valence electrons
Macromolecules
“giant molecules”Formed by polymerization
Small units (Monomers) join together to form polymers
Four groups of Organic Cmpds. Found in Living things1. Carbohydrates - made up of C, H, O
1:2:1Main source of energy for living thingsStructural in plants and some animalsGlucose broken down, supplies energyExtra sugar stored as complex CHO
STARCH starch = polymer sugar molecules = monomers
Monosaccharides-single sugar molecule-glucose, galactose,
fructosePolysaccharides
-formed from monosacc.-extra sugar stored in
glycogen
Carbohydrates
Glucose
Starch
LipidsInsoluble in waterMade mostly from C and HFats, oils, waxesUsed to store energyPart of biological membranes and waterproof coverings
Steroids (chemical messengers, ex. cholesterol) are lipids
Structure of LipidsGlycerol + fatty acids (fig.2-14)
Saturated-each C in the F.A. is joined to a C by single bond (F.A. contains the max. no. H atoms)
Unsaturated-at least one C-C double bond in the F.A.
Polyunsaturated-F.A. contains more than one double bond
Unsaturated-liquid at room temp.
Cooking oils = polyunsaturated
Nucleic AcidsMacromolecules made up of H, O, N, C, P
Polymers assembled from nucleotides (monomers)
Nucleotides made of 3 parts:
1. Nitrogenous bases (A, G, C, T)
2. Phosphate group
3. 5-carbon sugar
Nucleic acidsStore and transmit genetic information
Two kinds of N.A. 1. RNA (ribose) 2. DNA (deoxyribose)
The structure of a nucleic acidNucleotide
AdenineThymineCytosineGuanine
Nucleotides
ProteinsMacromolecules, contain C, H, O, NMade up of amino acids *peptide bonds-amino group
-carboxyl group-More than 20 different A.A. in nature-the side chain called the R-group is different
-Dehydration synthesis vs. hydrolysis
Functions of ProteinsControl rate of reactionsRegulate cell processesUsed to form bones, musclesTransport materials into or out of cells
Help fight diseaseUp to 4 levels of organization