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ISB 204 Exam 1--DNA, protiens, nucleotides
N/A
43
Biology
Undergraduate 1
02/06/2012

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Term
Polymer
Definition
large molecule made up of many similar or identical subunits
Term
Monomer
Definition
small molecule that can be combined with other similar or identical molecules to make a polymer
Term
carbohydrates
Definition
organic molecules that always contain carbon, oxygen, and hydrogen-many times only contain those three
Term
Monosaccharides
Definition
simple sugars-glucose
Term
polymers of carbohydrates
Definition
polysaccharides-many sugars
Term
Types of carbs
Definition
-starch
-glycogen
-Cellulose
-Chitin
Term
starch
Definition
found in plants, main form of carb storage
Term
glycogen
Definition
primary form of carb storage in animals
Term
cellulose
Definition
rigid, complex card containe din cell walls of many organisms, most abundant card on earth
Term
chitin
Definition
complex card that forms external skeleton of arthropods-plays structural role
Term
Lipids
Definition
-don't easily disolve in water
-made from oxygen, carbon, and hydrogen
-have considerable pwoers to store energy to prove insulation
Term
Triglycerides
Definition
most important glyceride, lipid molecule formed from three fatty acids bonded to glycerol
Term
fatty acid
Definition
molecule found in many lipids that is composed of a hydrocarbon chain bonded to a COOH group
Term
saturated fatty acid
Definition
with no double bonds between the carbon atoms of its hydrocarbon chain
Term
monounsaturated fatty acid
Definition
one double bond between carbon atoms
Term
polyunsaturated faty acid
Definition
with two or more double bonds between carbon atoms
Term
steroids
Definition
class of lipid molecules that have, as a central element in their stucture, four carbin rings
Term
cholestorol
Definition
steroid molecule that forms part of hte outer membrane of all animal cells
Term
phosphate group
Definition
a phosphorus atom surrounded by four oxygen atoms
Term
phospholipid
Definition
charged lipid molecule composed of two fatty acids, glycerol, and aphosphate group
Term
Types of proteins
Definition
-enzymes
-hormones
-transport
-contractile
-protective
-structural
-storage
-toxins
-communication
Term
enzymes
Definition
quicken chemical ractions
Term
hormones
Definition
chemical messengers
Term
transport
Definition
move other molecules
Term
contractile
Definition
move other molecules
Term
protective
Definition
healing; defense against invader
Term
structural
Definition
mechanical support
Term
storage
Definition
stores nutrients
Term
toxins
Definition
defense, predation
Term
communication
Definition
cell signalling
Term
polypeptide
Definition
series of amino acids linked in linear fashion
Term
protien
Definition
large, folded chain of amino acids
Term
antibody
Definition
immune system protien, fights foreign invaders such as virus
Term
liproproteins
Definition
molecules that are compenations of lipids and protiens-transport molecules that amount to a capsule of protien
Term
denatures
Definition
alters the shape of protiens
Term
LDL's
Definition
villians, capsules of protien that carry cholesterol to outlying tissues
Term
HDL's
Definition
capsules that carry cholesteral away from outlying cells to liver
Term
glyoprotiens
Definition
molecules that are combinations of protiens and carbs
Term
deoxyribonucleir acid (DNA)
Definition
pirmary information-bearing molecule of life, composed of two linked chains and nucletides
Term
ibonucleic acid (RNA)
Definition
molecule composed of nucletoides that is active in the syntheses of protiens
Term
Nucleotide
Definition
molecule in three parts-phoshate, sugar, and nitrogen-containing base-link together and form chain, chain forms DNA
Term
vitamins and minerals
Definition
help protien
Term
antioxidants
Definition
protect from damage
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