Question

1. Explain the processes that contribute and subtract blood glucose.

Answer 1

1. Explain the processes subtract blood that contribute glucose. and Degradation of glycogen, op glycogenolysis involves the stepwise removal of gedeose residue from one end of polymer by a phosphopolyso reaction. Catalysed by glycogen phosphoroly ase CGP), Yielding glucose 1 phosphate In both muscle and liver cells glucose t- phosphate Pproduced from flyeogen is convented by an enzyme to glucose 6-phosphate . 1 Thus glycogen stores in the liver are primarily broren down to glucose Blood glucose concentration is maintained within a normal panse. 6 To maintain homeostatio, the blood flucose concentration is controlled by a system or check and balances. (11) In the absorptive state, after a meal has been eaten, the blood glucose concentration increases,

Increased State glucose in the absorptive 0 The primary factor controlling the seenetion of insulin from the pancreas is the blood glucose concentration. @ An increane in an amu animal's blood glucose concentration directly stimulates cells of the pancreas to Seepete insulin in proportion to the amount of glucose in the blood. & Insulin promotes glucose uptake into its target cells, the resulting deener ase in the blood glucose concentration pemoves the signal for the insulin Seenetion Decreased glucose in the post ab sopptone State Û several fareton act in concent to prevent decreasing blood glucose from below the normal homeostatic nang en even during a Shont fast. @ othed wire glucose de eRease so much- a condition called hypoglycemica.

(3 If for any peason a such as Anolonged fast - the blood glucose concentration deere are blow the normal homeostatie mange for an animal, ne unons within the hypo thatamas that respond to changes in the extracelular concentration of glucose are activated (4) Signal from the hypothalamly then stimulate the production of glucose elevating facton. ( These include numeroly hormones, notably glucagon, a protein hormone that is seeneted by paneneas that stimulate the process of glycogenolysioc gluco neo genesio : The overall effeet in the incarero the blood concentration of glucose.

High blood sugar promotes insulin Ireleas Raise blood glucon! Iglucagong stimulate glycogen breakdown glycogen glucesce pancreas Liver | Insulin stimulate glucose uplake from blood Tissue cel Lowers blood ? geneose 1 LOW blood flucose promote glucagon releas leved

Blood glucose regulation :-) In sulin and glucagon regulate blood glucose levels. After a meal rich in Eb Carbohydrates, glucose enters the circulation at the small intestine The resulting pise in blood sugar, Pragens cells in the pan eneas to Seenete insulin, which stimulate cells throughout the body to absorb glucose from blood stream .. . As cells takes up sugar the blood glucose concentration, declines and, insulin seeretion slows.. If blood sugar dips too low, however othed panepeatie Cails seerete qucagon, which stimulates target cats in the liver to pelease stored glucose into the blood Stream

pane peaso cell seerete insulin Blood glucose concentpation too high Ces: after sugany mili Body calls také up glucose for Storage on use in mentabo lism Normal blood glucose concentration Blood gleicose concentration deere ases Blood glucose concentration release Blood glucose concentration to low Liven call break down glycogen and release glucose cells of pancreas seerete glucagon ~