lesson 8 regulating glucose Flashcards
blood glucose concentration is controlled by which two hormones
insulin and glucagon`
blood glucose concentration is essentially what
the amount of sugar in our bloodstream
is our blood glucose concentration gets too high, what occurs
it starts to damage our tissues
the rise in glucose levels is detected by what
the pancreas
the pancreas in response to detecting the rise of glucose levels does what
release insulin into the bloodstream
as insulin travels around the body, what does it do
it binds to receptors on certain cells
as insulin binds to receptors on certain cells, what does it do
it tells them to take some of the glucose that’s in the blood
the insulin binding to receptors happens to most cells but most importantly which two
liver and muscle cells
liver and muscles take up lots of the extra glucose molecules and combine them together to form what
glycogen
glycogen is essentially what
a long term storage form of glucose
as glycogen is produced the glucose is being removed in the blood which does what
makes the blood glucose concentration decrease
glucagon is different to glycogen as glucagon is what
a hormone
just like insulin, glucagon is also produced by what
the pancreas
glucagon does the opposite of what
insulin
our pancreas detects a low concentration of blood glucose and does what
secretes glucagon into the bloodstream
as glucagon travels around the body, it binds to many different cells, but mainly which
liver cells
as glucagon binds to the liver cells, what does the liver do then
it breaks down the glycogen and breaks it down into lots of glucose molecules
once the liver has broken down the glycogen into lots of glucose molecules, it then sends the glucose molecules where
into the blood
as the glucose molecules are sent back to the bloodstream after glycogen being broken down, this does what
this brings the blood glucose concentration back the normal
(so all of our cells have a good supply of it for respiration)
