B/B FL1BP Flashcards
what do u need in ur exp when testing a medical intervention
the idea of controls is needed to test medical interventions bc with no baseline they dont know whether there was actually a change
in general stem cells can be…
renewed
a peptide is what type of linkage and why are these linkages stable
a peptide is an amide linkage. amides are stable bc of their res stabiliztion btwn lp on n and db in carbonyl group.
ocean water has what
ocean water has a lot of na and cl ions which would make an osmotic gradient puling water out of the body’s cells causing dehydration.
hybridization and polymerization w regard to nucleotides
hybridization is the process of binding with complementary nucleotides. polymerization is the process by which nucs are strung tg to form a single stranded rna strand not the joining of two comp strands.
at a ph of 7.4, what is the charge on the n and c terminus
at a ph of 7.4, a cationic protein will have a -1 charge on the deprot carbox and a +1 charge on protonoated amino term.
what promotes the survival of eosinophils
interleukin 5
dilated pupils- symp or psymp
symp- f or f
why is aldosterone released? what does it do and what does it control
aldost is released in resp to low bp. it increase na reabsorption in distal tubule and collecting duct. ald upregulates the nak pumps along nephron lining which pumps 3na out for every 2 k in. since net solute mvmt is out of nephron, aldost also increases the gradient favoring water reabsorption. ald controls na reabsorption.
what happens when a csome loses telomeres after multiple divisions
it cant reproduce again and undergoes apoptosis.
autoclaving
autoclaving is the most effective way to sterilize used lab materials and this should be standard procedure followed here. it brings the temp to over 120 C and pressure of 2 atm which is enuff to kill almost anything.
double crossover event v single
csomal arms of homolog csomes cross over in two diff places along the arm. this results in a section in the middle of each csome being exch. single is only on the ends.
what is troponin made of and needed for and where
troponin is a complex of trop I, trop C and trop T required for musc contraction in skel and cardiac musc but not in smooth
what conformation do peptide bonds usually exist in? do they have db character
they exist usually in trans. also they have partial db character bc of the delocalization of e density from the peptide n through the peptide carbonyl carbon and onto peptide cnyl ox. as such the pep bond shows res stabilization( this was also mentioned in an earlier q!) for steric reasons its usually trans
hardy weinberg eqn
AA+ 2Aa+aa=1