HORMONES Flashcards
Is cortisol lipid soluble or water soluble
lipid soluble
What does a lipid soluble hormone mean
It cannot be stored
What is homeostasis
The presence of a stable internal environment
What are hormones
They are chemical messengers produced in one location and transported via the bloodstream to a second location where they cause a response to cells
Where are water soluble hormone receptors located
on the surface of cell
where are lipid soluble hormones located
inside the cell
Are water soluble hormones made and stored until required or made as required
Made and stored until required
Are lipid soluble hormones made and stored until required or made as required
Made as required
How do lipid soluble hormones travel
In the blood bound to a carrier protein
How do water soluble hormones travel
dissolved in the blood
How quick are water soluble hormones
Millaseconds to minutes
How quick are lipid soluble hormones
Hours to days
The mechanism of action of water soluble hormones is:
through second messengers (G protein which activates/inhibits second messengers)
what is the mechanism of action of lipid soluble hormones
Alters gene transcription (DNA)
In the pancreas what do beta cells do
secrete insulin
in the pancreas what do alpha cells do
secrete glucagon
where is the pancreas located
Above the small intestine
When we go above the blood sugar range what hormone does the pancreas secrete and which cells control this
Insulin and beta cells
when we go below the blood sugar range which hormone does the pancreas secrete and which cells control this
Glucagon alpha cells
Glucose synthesis is
Gluconeogenesis
Insulin secretion causes
glycogen and fat systhesis from glucose which causes the blood glucose concentration to decrease
Glucagon causes
the breakdown of glycogen and fat to make glucose which increases the blood sugar levels
What kind of hormones are glucagon and insulin
