B/B BP Diagnostic Flashcards
does histone acetylation or deacetylation allow for increased gene exp
acetylation
what are the monocytes
monocytes r the largest type of wbc. factors released by epithelium help form a cascade that leads to accumulation of immune cells at injury site
what is smth that tight junctions hallmarks of
epithelium
charge of adenine, thymine and ribose(said in dna and rna respectively)
neutral
charge of phosphate (said in dna)
negative
why does botulism poisoning cause falccid paralysis
neurotoxin prevents vesicles from rel acholine.this wldnt cause repeated depol or activation of the musc. the release is needed to activate skeletal musc in the first place. instead, the toxin interferes w nerve impulses and causes flaccid, or sagging, musc paralysis. u need acholine at nmusc junction for skel musc contraction
what are antigens
antigens are surface proteins that serve as identifying markers on cells and mols
what are antibodies
instead, antibody is the answer bc they r made to recog and bind specific epitopes of biomols like proteins
what causes the ph of blood to get too high
hyperventilation- blowing off too much co2
which are the lipid soluble vitamins
a,d,e and k
which are the water soluble vitamins
b and c
why do obese ppl need more vitamin d
lipid soluble vitamins are a,d,e and k. the water soluble ones are b and c. greater amts of subcutaneous fat sequester more of the lipid soluble vitamins and lower their release into the circ. thus, excess fat increases the initial dose of vitamin required to achieve a particular effect
what is the poly a tail imp for
poly a tail is imp for nuc export, translation and stability of mrna. the tail is shortened over time and when its short enough the mrna is enzymatically degraded
type 1 restriction enzyme
type 1 enzymes cleave at sites remote from recog site and require both atp and s-adenosyl-l met else to fxn
type 2 restriction enzyme
cleave within or at short specific distances from their recog sites and often require magnesium