Questions and CORRECT Answers
dipole moment - CORRECT ANSWER - determined by the magnitude of the charges and
the distance between them
hydrogen bonding - CORRECT ANSWER - electrostatic attraction between hydrogen
atom in a polar molecule and a small electronegative atom
Hydrophilic - CORRECT ANSWER - charged and polar
Hydrophobic - CORRECT ANSWER - does not break down in water, uncharged and non
polar molecules
amphipathic - CORRECT ANSWER - polar region forms hydrogen bonds and nonpolar
region interacts with other non polar regions
surface tension - CORRECT ANSWER - hydrogen bonds between water molecules form a
lattice
Equilibrium - CORRECT ANSWER - the point where the probability of ions moving one
side to the other is the same for both ways
micelle - CORRECT ANSWER - single layer lipid sphere
liposome - CORRECT ANSWER - lipid bilayer sphere-more stable organization
central dogma - CORRECT ANSWER - DNA to RNA (transcription) to protein
(translation)
,primary protein structure - CORRECT ANSWER - sequence of a chain of amino acids
secondary protein structure - CORRECT ANSWER - folding of the polypeptide chain into
helices or sheets
tertiary protein structure - CORRECT ANSWER - 3D folding pattern of a protein due to
side chain interactions
quaternary protein structure - CORRECT ANSWER - protein consisting of more than one
amino acid chain
amino acids - CORRECT ANSWER - contain a carboxyl group, an amino group joined by
carbon. r group attached to carbon
peptide bonds - CORRECT ANSWER - form when the carbon on the carboxyl group
forms a covalent bond with the nitrogen in the amine group in the adjacent amino acid
alpha helices - CORRECT ANSWER - polypeptide backbone forms a very compact
corkscrew
beta sheets - CORRECT ANSWER - more extended, hydrogen bonds are formed
determinants of protein shape - CORRECT ANSWER - -type of amino acids
-order of amino acids
-bonds between amino acids
-environmental factors
bad proteins - CORRECT ANSWER - prions
, metabolism - CORRECT ANSWER - all chemical reactions within organisms that enable
them to maintain life
catabolism - CORRECT ANSWER - metabolic reactions break down molecules to extract
energy
anabolism - CORRECT ANSWER - metabolic reactions synthesize building blocks to
produce new molecules
4 main pathways to extract energy from carbohydrates - CORRECT ANSWER --
glycolysis
-pyruvate to acetyl CoA
-citric acid cycle
-electron transport chain
products of glycolysis - CORRECT ANSWER - two 3-carbon pyruvate molecules, 4 ATP
Acetyl CoA combined with oxaloacetate to form citrate releasing... in citric acid cycle -
CORRECT ANSWER - coenzyme A
products of citric acid cycle - CORRECT ANSWER - GTP, 3 NAD+, FAD, regeneration
of oxaloacetate
electron transport chain - CORRECT ANSWER - NADH and FADH2 deliver high energy
electrons, give up energy to power production of ATP
function of carnitine - CORRECT ANSWER - transports fatty acids across mitochondrial
membrane during beta oxidation