Princeton Course Test 3 Flashcards
spring constant equation
1/2kx^2
what do intermolecular attractions do?
- increase the potential energy between molecules, decreasing their kinetic energy
what comes along with increasing size and number of electrons?
- greater polarizability, which increases strength of London’s dispersion forces
what are the only two amino acids with 4 oxygen atoms?
- aspartic acid
- glutamic acid
when weak acids are put into solution
- only partially ionized
- will not result in equal production of water molecules compared with strong acid/strong base
membrane transport is mediated by
- proteins
- not phospholipids
how to recognize a tautomer
- look for a shift in the atoms
if the second step is slow, what does that tell us about the activation energy?
- that the activation energy of the first step should be much greater than for the second step.
role of catalysts
- lower the activation energy
- do not affect the stability of intermediates in a reaction
the kinetics of any reaction
- can only affect the rate of the reaction
the thermodynamics of any reaction
- affect results based on stability.
thin layer chromatography
- uses small amounts of material to determine polarity of compounds and monitor reactions
- think thin and less
ionization of sulfuric acid
- after the loss of the first proton, the remaining hydrogen is bound to a negatively-charged molecule.
- electrostatic attraction between this remaining hydrogen and the negatively-charged molecule would disfavor loss the second proton, resulting in a smaller k.
what is resistivity
- resistivity of a current-carrying component immediately implies dissipation of heat
power is defined as
W/t
thyroid hormone
- T3 and T4
- is a peptide but acts like a steroid
cells that have not completed meiosis I are
- diploid
primary oocytes are arrested in which phase
- prophase I
synapsis
- the bringing together of homologous chromosomes during meiosis I so that crossing over can occur.
can amino acids cross the placental and fetal capillary membranes
- no
- they are charged
do maternal and fetal blood mix during pregnancy
- no!
how can a substance cross the placental barrier
- if it is lipid soluble or if it is actively transported
melting temperature
- the temperature at which half of the DNA strands are in the random coil or single-stranded stage
in order for a hydrogen bond to form
- H must be bonded to F, O, or N in one molecule to give it a partial positive charge.
aldosterone causes
- increased sodium reabsorption
- decreased water loss
- increased extracellular fluid volume
- increased blood pressure
osmotic pressure is what kind of property
- colligative
- depends on the concentration of solute particles
- always make sure to multiple by number of particles
what does gel electrophoresis separate based on?
- size
- larger substances stay at the top
- smaller substances travel to the bottom
polyunsaturated fatty acids require what to complete beta oxidation
- isomerase
- reductase
- NADPH
monounsaturated fatty acids require what ot complete beta oxidation
- isomerase enzyme
what happens during contraction
- myosin and actin overlap
- but DO NOT SHORTEN
amphoteric character of amino acids
- accept a proton
- donate a proton
directly after fertilization of the ova by the sperm, what occurs?
- completion of meiosis
- release of the second polar body
- then first cell division
- then implantation
- then gastrulation
corona radiata
- region of surrounding supportive cells
- think supportive cells act like a crown
zona pellucida
- protective acellular layer located just outside the plasma membrane
executive functioning occurs in what area of the brain?
- frontal lobe
dysthemia
- mental disorder characterized by low mood but symptoms aren’t as bad as depression.
object permanence develops in which stage?
- sensorimotor
compliance
- changing one’s behavior at the request of another who is of equal or lower status.
androcentric culture
- one that is male oriented.
- male is the norm and preferred across all aspects of ass
who is subject to stereotype threat?
- any group can be subject to stereotype threat regardless if the group is a majority or minority.
ethnocentricism
the tendency to believe that one’s own ethnic or cultural group is the most important one, and that all other groups are measured against one’s own.
education is an example of what type of capital?
- cultural capital
superimposition
- one stimulus is layered on top of another
contextual reception
- one is receiving contextual stimuli, not necessarily even processing it.
role of postcentral gyrus
- processing of the sense of touch
lateral geniculate nucleus
- visual processing pathway of the brain
- primary relay center for visual information received from the retina of the eye
borderline personality disorder
- characterized by unstable identity and interpersonal relationships, as well as by chronic feelings of emptiness and history of suicide
schizotypal personality disorder
- characterized by odd or eccentric behavior and acute discomfort in interpersonal relationships
schizoid personalities
- tend to be more withdrawn
baroreceptors
- mechanoreceptor located within the blood vessels that are sensitive to the stretch of the vessel itself.
stepping reflex
- a baby putting one foot in front of the other when their soles touch a flat surface
moro reflex
- infant spreading arms out then retracting them and crying in response
babinski reflex
- fanning out of toes and dorsiflexion of the big toe in response to stroking the sole of the foot
rooting reflex
- turning head and rooting with mouth in response to touch to the cheek or lips
the vestibular system is controlled by what
- the endolymph in the utricle, saccule, and ampullae that contain hair cells that detect motion and the rotation of the head
