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bio 21
macro molecules and polymers
28
Biology
Undergraduate 2
09/24/2008

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Term
Carbohydrates
Definition
Monomer unit: Sugars
Term
Lipids
Definition
Monomer unit: fatty acids
Term
Protiens
Definition
Monomers: amino acids
Term
Nucliec acids
Definition
Monomer unit: Nucleotides
Term
Carbohydrate structures Simple
Definition
Monosaccarides = one sugar unit
Term
Glucose
Definition
blood sugar
Term
Carbohydrates structures Simple
Definition
disaccarides = two sugar unit
Term
Glycosidic Linkage
Definition
a covalent bond formed between two monosaccarides by dehydration reaction
Term
Carbohydrates Structure Complex
Definition
Polysaccarides = many sugar units eg cellulose,glycogen, starch
Term
Cellulose
Definition
a polysaccaride found in plant cell walls
Term
Starch
Definition
polysaccaride energy storage in plants
Term
Glycogen
Definition
polysaccarides energy storage for animals
Term
Chemically modified carbohydrates
Definition
sugar phosphate, amino sugar
Term
Carbohydrate function
Definition
Energy source, source of carbon skeletons for synthesis of other biological molecules, structural component of cells, and cell to cell comunication
Term
Lipid structure
Definition
triglyceride- predominant form in diet one molecule of glycerol adn three fatty acids
Term
Types of fatty acids
Definition
saturated,unsaturated include monounsaturated and polyunsaturated
Term
Saturated lipids
Definition
2 H per internal carbon
Term
Unsaturated Lipids
Definition
monounsaturated(one or more double bonds)and Polyunsaturated(more than one double bond)
Term
ester linkage
Definition
happens during formation of triglyceride
Term
Lipid structure
Definition
Phosphlipid-component of cell membrane
Term
Lipid function
Definition
concentrated energy source,structural components of cell membranes--> phospholipids and cholestrol, carotenoids capture light energy for photosynthesis,communication-steriod hormones, metabolism-fat soluble vitamins, insulation, protection from water.
Term
Protein structures
Definition
chain of amino acids, have common features - Amino group,carboxylic acid group, alpha carbon the R group differs from from each amino acid
Term
Levels protien structure
Definition
primary=sequence,secondary= coiling by hydrogen bonding, tertiary- folding by R group interactions, quantarnary=two or more chains associating
Term
Proteins (Chaperonins)
Definition
assist in proper folding of newly synthesized proteins. Some trap protein in a molecular cage to prevent interference in the folding process
Term
Primary structure
Definition
sequence of amino acids in chains
Term
hydrolysis
Definition
add of OH and H groups of water to break a bond between monomers
Term
Steriod
Definition
linked carbon rings used to produce hormones cholestrols
Term
Protein functions
Definition
control metabolic reactions enzymes, transport, protection and support, movement, growth and repair, defense against desease, communication/regulation_protien hormones , cell receptors
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