BIO/BCHM

Question 1

these cells known to be very proliferate - divide

Answer 1

epithelial cells

Question 2

these do not typically undergo cell division post mitotic

Answer 2

neurons

Question 3

early in life these cells of proliferative but as we age, the mitotic capacity these cells dec

Answer 3

cardiac muscle cells

Question 4

these cells are unlikely to go division, respond to changing conditions by altering their size

Answer 4

adipocutes

Question 5

this amino acid only one has sulfhydrl groups

Answer 5

cysteine

Question 6

if theres a dec in ATp synthesis/levels but there is still same concentration of ATP in both cells why??

Answer 6

glycolytic flux is increased after treatment - allows to provide for that extra ATP (ETC activity was low - so CAC is not helping)

Question 7

in the ETC researchers ned to determine the activity of the complexes independant? why

Answer 7

rx catalyzed by complexes are coupled to one another

Question 8

a large carb tagged with flu marker and placed extracellular around a macrophage - ingest carb via phagocytosis - which cell structure will be labelled upon viewing a light microscope upon phago

Answer 8

lysoszyme

Question 9

during phago large molecules enter into the ____ and this ca fuse with____ which have ____

Answer 9

phagosome, lysoszyjme, and hydroltic enzymes

Question 10

what inhibits PFK

Answer 10

ATP, citrate, and acidic ph

Question 11

inhibition of PFK example of what inhibitions

Answer 11

feedback, competitive

Question 12

inhibiting K channel in AP diagram will cause

Answer 12

delay repolarization, prolong AP

Question 13

At a ph below protein pI it will be

Answer 13

positive charge

Question 14

ph above pI it will be

Answer 14

negative

Question 15

if a protein suggests it activate expression, trancribe has TF then must have this sequence

Answer 15

nuclear locatlization

Question 16

in the transmembrane domian what kind of molecules are in th emiddle

Answer 16

nonpolar

Question 17

is the flu is low when in solution with acid (aqueos)

Answer 17

then surface a.a. of the protein are mostly hydrophilic in aqueous solution

Question 18

what will happen if the inner membrane of mitochondrial is permeable

Answer 18

dirupt the gradient - proton gradient will disspate

Question 19

histone acetylation is a ____ and so it will be detected on

Answer 19

post translational modification — wester blot,

Question 20

Vasopressin regulated the insertion of aquaporins into the apical membrane of epithelial cells of what renal structure

Answer 20

collecting duct

Question 21

prion is best described as a infectious

Answer 21

protein

Question 22

where does blood go after leaving the small intestine

Answer 22

liver - detoxify

Question 23

what does the liver remove when detoxify

Answer 23

ammonia, alcohol, and drugs

Question 24

why do prokaryotes have a high degree of genetic adaptability and AR

Answer 24

short gen time, random mutations, and genetic recombination

Question 25

we typically see ____ loop with estrogen and LH where additonal LH will cause additional production of estrogen which will trigger pit gland to LH

Answer 25

positive

Question 26

when neuromodulator won't influcen LH levels then estrogen will/not change

Answer 26

NOT

Question 27

proteases are a _____ and what do they do

Answer 27

glycoprotein, they degrade proteins into smaller fragments

Question 28

when ask how many net moles of ATP - and 6 x 1023 use avogrado constant

Question 29

eggs and sperm are similar with

Answer 29

genome - NOT cell size, time require develop, not numbers produced

Question 30

___ this protein forms cytosketal icrofilaments

Answer 30

actin

Question 31

what product microtubules - also organizing center of it

Answer 31

centrosome - not kinetockers which are on the centromere of a chromosome - they only attach to microtubules

Question 32

where in the human male reproductive system do gametes become motile and capable of fertilization

Answer 32

epididymis = sperm leave the testes and stored in epi where becomes motile, in the testes its non motile

Question 33

using a higher voltage with the gels will only make proteins

Answer 33

migrate faster but not separate the subunits of homodimer