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23 Cards in this Set

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Nucleic acid
A polymer composed of monomers called nucleotides
They store and stransmit hereditary information
DNA and RNA
-----double strand
and
-----Single strand
Dehydration synthesis
Connects monomers to form a polymer, produces water, joins amino acids to form protein
Hydrolysis
Breaks up polymers, forming monomers
Isomer
a molecule that has the same number of atoms and chemical formula as another molecule but has a different shape.
Lipids
Hydrophobic
Made up of nonpolar H-C bonds
Triglyceride
covalent bonds store energy
PHOSPHOLIPIDS
make up call membranes and have HYDROPHILIC HEADS AND HYDROPHOBIC TAILS
proteins
provede structural support, transport other substances, perform signaling within and between cells, allow for movement, defend against foreign substances.
amino acids
make protien and is a polymer
Peptide bond
joins two amino acids through dehydration sythesis
anabolic chemeical reaction
builds larger molecules
catabolic chemical reaction
breaks down larger molecules into smaller ones
Bonded monosaccharides
make disaccharides
H2O
two hydrogen atoms covalently bonded to one oxygen atom. The hydrogen atoms have a partial positive charge and the oxygen has a partial negitive charge
hydrogen bonding
attraction between adjacent water molecules
cohesion
water molecules sticking to each other
adhesion
water molecules are attracted to other charged polar molecules and makes glass charged.
pH scale
the measure of the concentration of H+ ions in a solution
(7 is nuetral)
Hydrogen
atomic number of 1 has one electron in outer shell (can make one bond)
Carbon
atomic number 6, has four electrons in outer shell (can make four bonds)
Nitrogen
atomic number of seven - has five electrons in outer shell-can make three bonds
Oxygen
atomic number of 8 - has 6 electrons in outer shell (can make two bonds)