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57 Cards in this Set

  • Front
  • Back
starch
starch is polysacchride that serves to store energy in plants
glycogen
polysaccharide that human and animals use to store energy
lipid
hydrophobic organic molecules composed mainly of carbon,hydrogyn, and oxygen
triglyceride
made up of 3 fatty acids bound to a lolecules of glycerol
acid
a molecule that releases a proton in water
base
a proton acceptor, usually accepts hydorgen ions
pH
a measurement of hydrogen ions
buffers
chemicals that resist change in pH
kenetic
energy of motion
potetiel
energy not in motion (stored energy)
1st law of thermodynamics
energy can be converted (never created or never destroyed)
2nd law of thermodynamics
every energy transfer some energy in lost as heat and is no longer available for work
chemical reaction
chemical bond is made or broken
decomposition of reaction
large molecule is broken down into smaller parts
synthesis reaction
2 or smaller molecules are joined to make a large molecule
exchange reaction
2 molecules exchange atoms or groups of atoms
metabolism
chemical reaction in body necessary to maitain life
catabolism
consist of energy releasing decomposition reaction
anabolism
consist of energy storing reactions
organic compounds
contain carbon atoms
4 primary catagories of roganic compounds
carbohydrates, lipids, proteins, and nucleic acids
polymer
molecule that consist of a long chain of identical or similar sub units
polymerization
monomers joined toghether to form through dehydration synthesis
how are polymers broken down into monomers
by hydrolysis (spliting apart by the addition of water)
carbohydrates
hydrolic organic molecules composed of carbons, hydrogens, and oxygen atoms

2 to 1 ratio of hydrogen to oxygen
monosaccharides
single sugar
glucose, fructose, galactose
what is matter
atoms
what is the simplest form of an atom
an element
what are atoms made up of
positively charged protons and neutral neutrons and negetive charge electrons
electrons
determine the chemical preportion of an atom
isotpes
vary in their number of neutrons
ions
are charge particles
anions
gained electron and has a negetive charge
electrolytes
molecules that ionize in water, forming a solution that conducts electricity
free radicals
contain odd number of electrons and tend to be reactive and destructive to other molecules
chemical bond
attraction between two atoms
ionic bond
one gains and the other loses electrons
hydrogen bond
form between positive hydrogen of one molecule and the negative oxygen or nitron of another molecule
water
ability to dissolve matter
same subsatances to cling together
substances to clng to another
free radicals
contain an odd number of electrons and tend to be reactive and destructive to other molecules
electrolytes
molecules that ionize in water, forming a solution that conducts electricity
adhesion
one substance to cling to another
thermal stability
large amount of heat to change the temp of water
mixture
occurs when substances are physically blended together, but do not combime chemicaly
solution
made up of a particle(solute)mixed into more abundant substance
colloids
cloudy mixture that remains permenatly mixed, change from liquid to gel
suspension
large particles ,and do not remain mixed
what is anat
study of structure
what is physiology
study of function
scientifc method
scientific way of thinking
inductive method
making numerous observations and drawing generalization and predictions
deductive method
educated speculation
scientific fact
info that can be independently varified by any triand person
law
generalization suported by scientific evidence
theories
explantory statements decived from facts, laws, and confirmed hypothesis
evolution
change in genetic composition of population or organism
human structure
atomic particles- molecules- organelles- cells- tissues- organs-organ system- organism