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Flashcards in physiology + anatomy Deck (9)
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1
Q

what are adrenaline and tryptophan derived from

A

tyrosin + trytophan

2
Q

are amino acids hydrophilic or hydrophobic

A

hydrophilic

3
Q

how to calculate plasma concentration

A

PC = rate of secretion - rate of elimination

4
Q

when do hormones become deactivated

A

when they are bound to a receptor

5
Q

where is insulin peptide synthesised

A

RER of pancreatic B cells as larger preprohormone - preproinsulin

6
Q

structure of insulin

A

2 polypeptide chains linked by disulphide bonds

connecting C peptide (no physiological function)

7
Q

mutation in kir6.2

A

neonatal diabetes (give SURs)

8
Q

what happens when insulin in bound to the a subunit

A

B subunits phosphorylase and dimerise -> activating the catalytic activity of the receptor

9
Q

where are ketone bodies formed

A

liver mitochondria