MCAT PRACTICE QUESTIONS AND ANSWERS primary structure of basic protein is formed when - Answer - 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 - Answer - 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 - Answer - new cc bonds
the eye cannot get the focal length long enough then the ciliary muscle cannot - Answer
- relax sufficiently
the image in the retina is - Answer - not real, reduced in size and inverted
alpha D glucose and Beta D glucose are different how - Answer - the hemiacetal carbons have opposite configurations
^14C has how many neutrons and protons - Answer - 8 neutrons and 6 protons
rate determining steps can only involve how many molecules - Answer - 2
Is Ka needed in titrations - Answer - no
Avagadros number - Answer - 6.022x10^23 the amount of a substance in one mol
when G is bigger than 0 - Answer - non spontaneous
Keq greater than 1 means - Answer - spontaneous
if torque = 0 than - Answer - acc = 0
More intermolecular and hydrogen bonding means ___ solubility? - Answer - less
Gabriel synthesis is - Answer - 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 - Answer - is the largest with most likely to dipole dipole
Enzymes do not effect - Answer - thermo of reaction
Lower left periodic table trend - Answer - larger the atomic radius Upper right periodic trend - Answer - More Electro neg/ Ionization Energy/ Electron affinity
Electronegativity - Answer - 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 - Answer - affinity to steal electrons in a ionic bond
concave lense - Answer - diverging corrects nearsightedness (myopia can't see far away)
convex lense - Answer - converging corrects far sightedness (can't see close up)
concave mirror - Answer - converging
E cell and Delta G have a what relationship - Answer - Inverse
myopic - Answer - imageforms infront of retina (nearsightedness
hypergenic - Answer - image behind retina farsightedness
purines - Answer - A,G
D amino acids can't be substituted for - Answer - L amino acids with the same enzyme
peptide bond - Answer - 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 - Answer - water
cofators are - Answer - things that help enzymes and are not other enzymes themselves
if they are enzymes they're called coenzymes
operant conditioning - Answer - if not reinforced preferred behavior goes extinct
foraging behavior - Answer - animal letting predator know it doesn't have the element of surprise
what releases Ca 2+ in muscle contraction - Answer - sarco reticulum
action potential causes - Answer - t tubule depolarzation t tubule depolarization cases - Answer - sarco reticuclm to release CA 2+
Ca2+ does what - Answer - binds to troponin complex
troponin complex allows - Answer - tropomyosin to expose myosin binding site in action
endoderm develops - Answer - epithelial linings of digestive and resp tract
liver
pancreas
thyroid
bladder
Acetocholine is a - Answer - neurotransmitter that when in synaptic cleft will increase muscle twitch frequency
sensory receptors - Answer - electromagnetic radiation receptor ionic receptor norciceptor
aspects of additude - Answer - cognitive behavioral
affective'
emotional
cognitive - Answer - steryotypes already thoughts and beleifs
behavioral - Answer - what causes behavior
affective - Answer - emotional part of additude
emotional - Answer - emotion
beta particles have ___ charge so they are ____ by magnetic field gamma are ___ charged so they are ____ by magnetic field - Answer - negative, deflected
not, aren't deflected
blood flow is ___ throughout body
blood pressure is ___ throughout body - Answer - constant, not constant
Electrostatic force = - Answer - (Kq1q2)/(r^2)
what amino acid is the only one without a chiral center therefore is not optically active - Answer - 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 - Answer - new cc bonds
the eye cannot get the focal length long enough then the ciliary muscle cannot - Answer
- relax sufficiently
the image in the retina is - Answer - not real, reduced in size and inverted
alpha D glucose and Beta D glucose are different how - Answer - the hemiacetal carbons have opposite configurations
^14C has how many neutrons and protons - Answer - 8 neutrons and 6 protons
rate determining steps can only involve how many molecules - Answer - 2
Is Ka needed in titrations - Answer - no
Avagadros number - Answer - 6.022x10^23 the amount of a substance in one mol
when G is bigger than 0 - Answer - non spontaneous
Keq greater than 1 means - Answer - spontaneous
if torque = 0 than - Answer - acc = 0
More intermolecular and hydrogen bonding means ___ solubility? - Answer - less
Gabriel synthesis is - Answer - 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 - Answer - is the largest with most likely to dipole dipole
Enzymes do not effect - Answer - thermo of reaction
Lower left periodic table trend - Answer - larger the atomic radius Upper right periodic trend - Answer - More Electro neg/ Ionization Energy/ Electron affinity
Electronegativity - Answer - 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 - Answer - affinity to steal electrons in a ionic bond
concave lense - Answer - diverging corrects nearsightedness (myopia can't see far away)
convex lense - Answer - converging corrects far sightedness (can't see close up)
concave mirror - Answer - converging
E cell and Delta G have a what relationship - Answer - Inverse
myopic - Answer - imageforms infront of retina (nearsightedness
hypergenic - Answer - image behind retina farsightedness
purines - Answer - A,G
D amino acids can't be substituted for - Answer - L amino acids with the same enzyme
peptide bond - Answer - 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 - Answer - water
cofators are - Answer - things that help enzymes and are not other enzymes themselves
if they are enzymes they're called coenzymes
operant conditioning - Answer - if not reinforced preferred behavior goes extinct
foraging behavior - Answer - animal letting predator know it doesn't have the element of surprise
what releases Ca 2+ in muscle contraction - Answer - sarco reticulum
action potential causes - Answer - t tubule depolarzation t tubule depolarization cases - Answer - sarco reticuclm to release CA 2+
Ca2+ does what - Answer - binds to troponin complex
troponin complex allows - Answer - tropomyosin to expose myosin binding site in action
endoderm develops - Answer - epithelial linings of digestive and resp tract
liver
pancreas
thyroid
bladder
Acetocholine is a - Answer - neurotransmitter that when in synaptic cleft will increase muscle twitch frequency
sensory receptors - Answer - electromagnetic radiation receptor ionic receptor norciceptor
aspects of additude - Answer - cognitive behavioral
affective'
emotional
cognitive - Answer - steryotypes already thoughts and beleifs
behavioral - Answer - what causes behavior
affective - Answer - emotional part of additude
emotional - Answer - emotion
beta particles have ___ charge so they are ____ by magnetic field gamma are ___ charged so they are ____ by magnetic field - Answer - negative, deflected
not, aren't deflected
blood flow is ___ throughout body
blood pressure is ___ throughout body - Answer - constant, not constant
Electrostatic force = - Answer - (Kq1q2)/(r^2)
