251 . Which reaction provide additional ATP for muscle contraction?
Answer : Myokinase reaction
252 . Which is required for the conversion of creatine to creatine phosphate?
Answer : High – energy phosphate
bond (his is derived from ATP )
253 . Which enzyme catalyse the transfer of phosphate from ATP to creatine to form creatine phosphate?
Answer : ATP –
creatine transphosphorylase
254 . What about the concentration of ATP and creatine phosphate in resting muscle?
Answer : High concentration
255 . Give the conversion of lactic acid that is formed during muscle contraction
Answer : Considerable amount of lactic acid is formed
during muscle contraction , which diffuses into liver where it is oxidised back to pyruvic acid and converted to liver glycogen.
256 . What is the other name for Cori cycle?
Answer : Lactic acid cycle
257 . What about the concentration of glycogen, ATP and creatine phosphate in excausting muscle?
Answer : Very low
concentration of glycogen, ATP and creatine phosphate in excausting muscle
258 . What is the use of excess oxygen consumed after the exercise?
Answer : This oxygen is used
to oxidise the lactic acid to glycogen and to restore the normal creatine
phosphate concentration.
259 . What is the normal blood glucose level in a healthy individual?
Answer : 80 to 120 mg %
260 . What is the normal blood glucose level during postabsorptive period?
Answer : 75 to 90 mg %
261 . What is the maximum limit of absorption of glucose in alimentary mechanism?
Answer : 1. 84 g per kg body weight per hour
262 . What are the hormones increases absorption of glucose from the intestine?
Answer : Thyroxine and adreno
cortical hormones.
263 . Which vitamin deficiency delays absorption of glucose from intestine?
Answer : Vitamin B
264 . Which organ plays an important role in blood glucose regulation?
Answer : Liver
265 . When the blood glucose level is high . Liver restore the normal level . Explain this.
Answer : 1. Liver accelerate
glycogenesis 2. Increase utilization
of glucose
266 . What are the hormones favour hepatic glycogenolysis?
Answer : Adrenaline, glucagon and thyroxine
267 . Which hormone inhibit gluconeogenesis?
Answer : Insulin
268 . Which region secrete insulin hormone?
Answer : Beta cells of islets
of langerhans
269 . What hormone is secreted from alpha cells of langerhans that regulate blood sugar level?
Answer : Glucagon
270 . What is the other name for glucagon?
Answer : Hyperglycemic
glycogenolytic factor ( HGF )
271 . What is the initial reaction of glucose oxidation?
Answer : Hexokinase reaction
272 . Which hormone depresses the action of glucose – 6 – phosphatase?
Answer : Insulin
273 . What is the other name for adrenaline?
Answer : Epinephrine
274 . What diabetogenic hormone is secreted from thyroid?
Answer : Thyroxine
275 . Which region of adrenal secrete adrenaline or epinephrine hormone?
Answer : Adrenal medulla
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