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chapter 3
macromolecules
30
Biology
Undergraduate 2
05/09/2011

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Term
aldose
Definition
carbonyl group at end
Term
ketose
Definition
carbonyl group not at end
Term
amylose
Definition
unbranched starch
Term
amylopectin
Definition
complex starch
Term
glycogen
Definition
polysaccharide /animal storage molecule/insoluble in h2o
Term
cellulose
Definition
beta-glucose/plant cell wall
Term
chitin
Definition
cell walls of fungi/arthropods/ contains nitrogen containing group on each glucose
Term
lipids- classes- FATS(construction)
Definition
not polymers/( condensation- water lost- glycerol backbone (3C), fatty acid tails)
Term
ESTER BOND/ triacylglycerol
Definition
2 FA's joined to glycerol by ester bond
Term
fats- hydrocarbon tail (hydrophobic/hydrophilic)
Definition
nonpolar/ hydrophobic
Term
saturated fatty acids
Definition
c-c single bonds/ from animal products/ solid at room temp
Term
unsaturated fatty acids
Definition
c=c double bonds/ kinked/kinks prevent tight packiging
Term
triglycerides/ yield 2 as much energy than carbs
Definition
3 FA's tails linked to glycerol/cushion vital organs
Term
phospholipids
Definition
Term
phospholipids-head / tail
Definition
hydrophylic-head
hydrophobic -tail-2 tails
Term
amphipathic
Definition
FA with hydrophilic end and long hydrophobic tail- opposing chemical property
Term
phospholipids
Definition
phosphate head(hydrophilic head) interact w/ environment & cytoplasm
Term
steroids
Definition
carbon skeleton containing 4 c ring.
vitD-
Testrone-
cortisol-
cholestrol-
Term
PROTEINS/AMINO ACIDS
Definition
hydrophylic
structure-keratin/ collagen
storage-yolk proteins
transport-hemaglobin
intercellular signal-insulin
movement-actin/myosin
Term
enzymes-name 2 that accelerate chem. reaction
Definition
pepsin trypsin
Term
protein (def)
Definition
chain of amino acids linked by peptide bonds
-covalent bond
Term
protein structure-PRIMARY STRUCTURE
Definition
unique seq. of amino acids/depends on inherited genetic info.
Term
SECONDARY STRUCTURE
Definition
result from H bond at regular intervals/ APLHA HELICIES- SPECIFIC COILS
BETA sheets- forms folds
Term
TERTIARY STRUCTURE
Definition
Term
QUARTERNARY STRUCTURE
Definition
Term
scaffold proteins
Definition
link together a set of activating,inhibiting,adaptor, and substrate proteins at a specific location in a cell.
Term
motor proteins
Definition
generate the force responsible for muscle contraction
Term
conformation
Definition
final fold of a polypeptide chain-minimizes free energy
Term
chaperones
Definition
assist in protein floding
Term
folding patterns
- alpha helices
-beta sheets
Definition
alpha-keratin-abundant in skin,hair,nails
beta sheets- found in protein fibroin
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