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Bio Quiz 3

Terms

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Proteins
4 classes of organic compounds (3)
Disaccharide
Two monosaccharides that have joined by condensation synthesis.
Carbohydrates
4 classes of organic compounds (1)
Buffer
Chemical systems that neutralize small amounts of either an acid or base added to solution.
Functional groups
characteristic patterns of atoms other than those involved in C-C or C-H bonds.
Hydrophobic
Molecules that don't "like" water. Nonpolar (do not dissolve in water)
Starch
Glucose polymer. 2 forms of starch - amylase, - pectin (amylopectin)
Functional groups
May be hydrophobic or hydrophilic
Carbohydrates
Sugars and starches, short term energy storage molecules.
Nucleic acids
4 classes of organic compounds (4)
Chitin
Glucose polymer with an amino acid attached to each glucose unit. Similar structure to cellulose -> so we can't digest it.
Hydrophilic
water "loving." Polar (dissolve in water)
Macromolecule
a large polymer
Polysaccharides
(complex carbohydrates) Long polymers of monosaccharides joined by condensation synthesis.
Condensation Synthesis
(a.k.a. Condensation reactions; dehydration synthesis.) (Putting together) Used to synthesize "polymers" (and water)
Monomers
Each of these classes are made up of molecular building blocks (or units)
Lipids
4 classes of organic compounds (2)
Monosaccharide
Simple sugar
Deoxyribose
5 carbon sugar
organic molecules
To biologists these always contain Carbon and Hydrogen.
Inorganic compounds
constitute non-living matter.
Carbon and Carbon skeletons
What may bond with functional groups?
Organic Compounds
The elements most commonly found living things are C, O, N, H = (95% of your body weight): also P and S - CHNOPS
Hydrolysis
When water is added to a polymer, the reverse of condensation synthesis occurs. Water (H2O) is broken down into a hydroxyl group (OH) and an H (Breaking apart)
Polymers
Longs chains of unit molecules are called
Cellulose
Glucose polymer. Structural polysacarihide for plants (component of the cell wall in plants)
Glycogen
Glucose polymer
Organic molecules
(union of 2 or more atoms that form the smallest unit of a substance that retains all the properties of that substance) are formed hen H, N and O (and other elements) bond to Carbon)

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