MCAT PRACTICE QUESTIONS 100% ACCURATE GRADE A+ GURANTEED

primary structure of basic protein is formed when the amino acid terminus of one amino acid attacks the carboxy terminus of another what amino acid is the only one without a chiral center therefore is not optically active glycine you can tell if it all contains glycine when you know under polarized light to determine if the whole acid is optically active or not product of grignard reagent new cc bonds the eye cannot get the focal length long enough then the ciliary muscle cannot relax sufficiently the image in the retina is not real, reduced in size and inverted alpha D glucose and Beta D glucose are different how the hemiacetal carbons have opposite configurations ^14C has how many neutrons and protons 8 neutrons and 6 protons rate determining steps can only involve how many molecules 2 Is Ka needed in titrations no Avagadros number 6.022x10^23 the amount of a substance in one mol when G is bigger than 0 non spontaneous Keq greater than 1 means spontaneous if torque = 0 than acc = 0 More intermolecular and hydrogen bonding means ___ solubility? less Gabriel synthesis is an R group with a halide that uses the halide to connect the R group with an N that's part of a 5 member ring and then breaks off to form NH2 connected to R; THIS REACTION DOES NOT USE NH3 Highest amino acid melting point is the amino acid that is the largest with most likely to dipole dipole Enzymes do not effect thermo of reaction Lower left periodic table trend larger the atomic radius Upper right periodic trend More Electro neg/ Ionization Energy/ Electron affinity Electronegativity how close the atom pulls the covalent bond closer to them ex in H-F there is a large polar dipole towards F electron affinity affinity to steal electrons in a ionic bond concave lense diverging corrects nearsightedness (myopia can't see far away) convex lense converging corrects far sightedness (can't see close up) concave mirror converging E cell and Delta G have a what relationship Inverse myopic imageforms infront of retina (nearsightedness hypergenic image behind retina farsightedness purines A,G D amino acids can't be substituted for L amino acids with the same enzyme peptide bond carboxyl group of amino acid attacks the amino group of the other it has resonance and is planar molecular geometry partial double bond character what is released in a peptide bond water cofators are things that help enzymes and are not other enzymes themselves if they are enzymes they're called coenzymes operant conditioning if not reinforced preferred behavior goes extinct foraging behavior animal letting predator know it doesn't have the element of surprise what releases Ca 2+ in muscle contraction sarco reticulum action potential causes t tubule depolarzation t tubule depolarization cases sarco reticuclm to release CA 2+ Ca2+ does what binds to troponin complex troponin complex allows tropomyosin to expose myosin binding site in action endoderm develops epithelial linings of digestive and resp tract liver pancreas thyroid bladder Acetocholine is a neurotransmitter that when in synaptic cleft will increase muscle twitch frequency sensory receptors electromagnetic radiation receptor ionic receptor norciceptor aspects of additude cognitive behavioral affective' emotional cognitive steryotypes already thoughts and beleifs behavioral what causes behavior affective emotional part of additude emotional emotion beta particles have ___ charge so they are ____ by magnetic field gamma are ___ charged so they are ____ by magnetic field negative, deflected not, aren't deflected blood flow is ___ throughout body blood pressure is ___ throughout body constant, not constant Electrostatic force = (Kq1q2)/(r^2) IR tips Carbonyl is at ____ OH group looks like a 1700 big swoop down above 3000 sound travels fastest in a solid ossicles are solid stapes are reduced in size so depolarization is magnitized oxidation loss of electrons increased oxidation state reduction gain of electrons decrease oxidation state benedicts reagent detects reducing sugars like maltose and hemiacetal groups NOT SUCROSE OR GLYCOSIDIC sucrose names glucopyranosyl fructo furanoside fructo furanosyl glucopyranoside once saturated increase in substrate does what to reaction rate nothing how to form disacharide (4 steps) pronation of sugar nuc attack loss of h2o loss of proton increase co2 exhale increases blood PH in acidosis body responds by breathing more and so CO2/HCO3 conc can decrease so blood PH increases self efficiency = (loadxload resistance)/(effort x effort distance) all triglycerides but not all phospholipids have a ______ glycerol backbone salt bridges do what prevent charge build up in galvanic cells by releasing ions into separate cells 1st to be detected in chromatography is the lowest affinity phase change density and entropy change during phase change temperature does what temperature remains constant competitive inhibitors bind how reversibly to active site anaerobic respiration occurs after glycolysis amino acids net charge no net charge if the air pressure goes down increse in breathing air increase in tidal volume increase in secretion of erythropoitin what protein structure is most important for enzyme function tertiary structure gram + more peptidoglycan (dark purple) gram neg = outer membrane thin what holds together nucleus strong nuclear force holds protons together kinetochore forms at end of prophase primase part of replication Topoisomerase winds unwinds for synthesis DNA ligase links bases as last step of base repair after polymerase micheael menton kinetics are based on there is one active site capable of binding substrate hemoglobin is allosteric allosteric control/regulation