control and regulation of blood glucose and the secondary messanger model Flashcards
what is the term for creating glucose from non carbohydrate stores such as lipids and amino acids
glyconeogenesis
what is the term for glucose to glycogen
glycogenesis
what is the term for glycogen to glucose
glycogenolysis
what organ is responsible for the control of blood glucose
pancreus
what does the pancreus contain , and what does that secreate and do
islets of langerhan
contains alpha and beta cells
what are beta cells responsible for
secreate insulin when blood glucose is too high
what are alha cells responsible for
secreate glucagon when blood glucose too low
describe and explain the response to low blood glucose
- detects blood glucose too low
- alpha cells secrete glucagon
- glucagon binds to receptors on liver cell
- activates enzymes that stimulate glycogenolysis [ conversion of glucogen into glucose]
- activates enzymes that also stimulate gluconeogenesis
- rate of respiration decreases
describe the bodys response too an increase in blood glucose
-detects high levels of blood glucose
- beta cells secreate insluin
- insulin binds to receptors on liver cells
- increases permiability of the liver by increasing the number of channel protiens
- activates enzyme that stimulates glycogenesis
- glycogen stored
- rate of respiration increases specifically in muscle cells
what is the secondary messanger model
role of adrenaline in increasing blood glucose
describe how adrenaline can increase blood glucose
- adrenaline compelentory tertiary structure to liver cells receptors
- adrenaline binds to liver cell receptors
- activate enzyme adenylate cyclace
- adyenylate cyclace converts atp into cAMP
- cAMP actives protien kinase A
-protien kinase A activates cascade that stimulates glycogenolyisis.
