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MCAT Psych/Soc AAMC > Section Banks and Full Lengths #2 > Flashcards

Section Banks and Full Lengths #2 Flashcards

1
Q

Reactivity of a metal depends on its

A

ionizatin potential

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2
Q

myosin is anchored at the

A

m line

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3
Q

actin is anchored at the

A

z line

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4
Q

bacteria uses the ___ to establish the proton gradient of the ETC

A

plasma membrane

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5
Q

sympathetic nervous system actions

A

inhibits peristalsis and digestive enzyme secretion. Increases blood glucose

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6
Q

blood clot in capillary

A

will block bloodflow, so hydrostatic pressure will build. Causes increase in fluid flow into the interstitial space

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7
Q

what are ribosomes made of?

A

rRna and proteins

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8
Q

lysosome

A

organelle in the cytoplams of eukaryotic cells containint degradive enzymes enclosed in a membrane.

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9
Q

bacterial cell wall is made of

A

peptidoglycans

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10
Q

ANS neuron types

A

sensory and motor neurons

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11
Q

difference between sensory and motor neurons in ANS

A

sensory brings impulses from organs to CNS (affarent)

motor carry impulses from CNS to organ (efferent)

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12
Q

bacteriophage

A

virus IN bacteria

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13
Q

can antibodies work to kill viruses?

A

yes sir

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14
Q

when are primary oocytes formed?

A

All are formed before birth.

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15
Q

ionization constant

A

shows the degree to which a substance will ionize in a solution. (Ka and Kb are ionization constants)

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16
Q

acid strength based on Kb

A

more than 1 is a strong acid, less than one is a weak acid

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17
Q

Phase diagrams- which phase is on the left, middle, and right?

A

Left- solid
middle-liquid
right-vapor

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18
Q

formula for torque

A

T= FRsin (theta)

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19
Q

formula for the magnitude of an electric field on a point charge Q

A

E=kq/r^2

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20
Q

What does “constant acceleration” mean?

A

velocity is changing by a constant rate. The object is increasing/decreasing at a constant rate per unit time. A constant force on a mass produces a constant acceleration

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21
Q

heat of fusion

A

amount of heat it takes to melt a substance (can also freeze to give same value) also called enthalpy of fusion

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22
Q

amount of frictional force over a given area

A

frictional forces dissapate an amount of energy in Joules given by the product of the force in N times the distance.

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23
Q

ebulliator

A

boiling chip. Makes it so the liquid doesn’t super heat.

24
Q

Oxidation state of O in peroxides

A

can be just -1

25
two forces acting on the same object- in what ways can they combine?
cannot have a force bigger than their combination or smaller than their difference
26
Electron capture (K capture)
An electron in an atoms inner shell is drawn into the nucleus where it combines with a proton, forming a neutron and a neutrino. The neutrino is ejected from the nucleus. So, the atomic number decreases by one forming a new element.
27
Beta minus decay
neutron in the nucleus turns into a proton, electron, and antineutrino. Electron and antineutrino fly away. The atom now has one more proton than it started with
28
Beta plus decay
proton in the nucleus turns into a neutron, positron, and neutrino. The positron and neutrino fly away, and the nucleus has one less proton than it started with.
29
where is the link in DNA?
3'C of one to the 5'C of the other
30
How do macrphages work?
ingest foreign material, the material initially becomes trapped in a phagosome. The phagosome fuses witha lysosome to digest foreign objects.
31
Endosomes
mediate endocytosis, membrane bound
32
proteases
digest proteins into smaller fragments
33
In what order are amino acid sequences assembled? Nucleotide sequences?
N to C terminals | nucleotide built 5 to 3
34
lysosomes
membrane bound organelles that contain hydrolytic enzymes activated by low pH
35
kinetochore
protein complex associated with the centromere of a chromosome during cell division
36
source of microtubules
centrosomes
37
how to determine the # of stereoisomers
2^n | n= number of chiral centers
38
basic anions dissolve in
acidic solutions
39
cholesterol structure
fused 4 ring system
40
how to tell if a sugar is reducing
anomeric OH | sucrose isn't reducing
41
How does ultrasound work?
place transducer on skin, hold it still. Use high frequency and low wavelength for less diffraction. Sound bounces off barriers and transducer measures time it takes for the waves to get back to it. Able to use that information to create an image to see irregular bumps, etc.
42
H can H bond with
NOF
43
Transmembrane proteins are
hydrophobic, non polar
44
southern blot
DNA. In order to work, must create or eliminate restriction sites along palyndromic sequences.
45
retrovirus
starts with vRNA, uses reverse transcriptase to generate a complementary strand of cDNA. Integrase incorporates it into host genome. Genome transcribed making mRNA. mRNA and vRNA have same sequence.
46
phospholipids are also called
phosphatides
47
extractions
just because a substance is polar doesn't mean it will go to the aqueous phase. It could stay in the organic phase if it's uncharged.
48
Electrolytic vs. Galvanic cells
RED CAT, AN OX for both of them. DIrections of both half reactions are reversed as well as the sign of the cell potential
49
Electrolytic cell function
electrical energy used to drive non-spontaneous redox reaction
50
galvanic cell function
spontaneous redox reaction converted to electrical energy
51
Ideal gas assumptions
gas is a large number of molecules in random motion volume of molecules is small compared to the volume occupied by the gas no forces act on molecules except during elastic collison
52
Piagets milestones in each stage
Sensorymotor- object permanence and early language development Preoperational- start to talk and engage in symbolic play. Don't understand conservation yet. Concrete- Logical thought. Understand conservation. Understand that others have different opinions. Formal- abstract, creative thinking. Hypothetical and deductive reasoning.
53
Freuds stages and ages
``` Oral (0-1) Anal (1-3) Phalic (3-6) Latent (6-puberty) Genital (Puberty-) ```
54
western blot southern blot northern blot
Proteins DNA RNA
55
prion proteins
misfolded proteins cause neurodegenerative disorders.
56
average weight of one amino acid
110 kDa.

MCAT Psych/Soc AAMC (7 decks)

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