lab 9 & 10 Flashcards
(53 cards)
what do your cells uses glucose for
create ATP
what is the normal range for fasting blood glucose
4-6mmol/L
what did we find from lab 10 - results from blood glucose concentration with glucose spit
expect blood glucose to decrease over time
if you fasted for 12hrs what would this mean for glucose concentration
would stay consent
what did we find from lab 10 - results from blood glucose concentration with glucose drink
insulin will simulate the pancreas, take time for glucose to go into blood - glucose levels rise over time
what did we find from lab 10 - results from blood glucose concentration with exercise
glucose levels drops over time
why is important for the blood glucose to be kept within that range (4-6)
- so cells always have full they need to make ATP
- important it is not too high - or else will cause damage to cells
when fasting what hormone is released when blood glucose drops below normal range
glucagon
when fasting which organ and which cells glucagon is released from
alpha cells from pancrease
what tissues are target cells for glucagon hormone
liver
when bound to receptors on alpha cells what effect does glucagon hormone have
- liver breaks down glucose
- make more glucose, to release into blood stream, to increase blood glucose levels
what turns off rlease of glucogon hormone
pancrea stops secreting glycagon when blood glucose increases and returns to normal
what turns off release of glucagon hormone
pancreas stops secreting glycagon when blood glucose increases and returns to normal
if you sip of spit out glucose solution (lab 10) - blood glucose may have decreased from baseline why?
- brain receives signals from taste receptor detect glucose
- stimulates brain to activate insulin hormone release from pancreas - w/ anticipation
- insulin signals cells take glucose out of blood to reduce concentration
- feedforward control
- cephalic phase (brain)
if you exercise in lab 10, blood glucose may have decreased why?
- cells using more glucose
- take out glucose - less in blood
if after drinking glucose drink blood glucose levels increased above normal range - which hormone is released
insulin
if insulin is released which organ and cells is this released from
pancrease, beta cells
which target cells have receptors for insulin hormone
all body cells
when bound to to receptors on beta cells what effect does this insulin hormone have
insulin stimulates glucose out of blood to use
- livers and skeletal all store glucose as glycogen and adipose cells store glucose as fat
what turns off release of insulin
as blood glucose decrease, returns to normal - pancreas stops secreting insulin
what hormones increase blood glucose
glycogon, adrenalin, cortisol, growth
what is the only hormone decrease blood glucose
insulin
what is the stimulus and effect of glugacon
glucose is gone
stimulus: low blood glucose
effect: increase blood glucose
what is the stimulus and effect of insulin
stimulus: high blood glucose
effect: decrease blood glucose
