Zadanie 5b
After several hours without food, a person’s blood glucose begins to fall. Explain how glucagon contributes to restoring the regulated concentration.
Insulin and glucagon in glucose regulation
Trace pancreatic hormone secretion, blood transport and target-cell responses that regulate blood glucose.
Tę umiejętność sprawdza 11 zadań wzorowanych na arkuszach IB z lat 2022–2026.
Zadania sprawdzające tę umiejętność: 11 Otwórz w wyszukiwarce z filtrami
Zadanie 9
Glucose connects molecular structure, energy release and physiological regulation. (a) Distinguish alpha-glucose and beta-glucose in structure and biological role. (b) Explain the regulation that prevents large sustained changes in human blood glucose…
Zadanie 30
Several hours after a meal, blood glucose falls below its regulated range. Which response helps restore the concentration? A. Pancreatic glucagon secretion stimulates breakdown of liver glycogen B. Pancreatic insulin secretion stimulates storage of glucose as…
Zadanie 9
A physiology course examines how biological systems preserve stable information and internal conditions. (a) Explain mechanisms that reduce copying errors during DNA replication. (b) Describe regulation of blood glucose in humans. (c) Explain why extracellular…
Zadanie 20
Which pancreatic response helps correct a fall in blood glucose? A. Conversion of its digestive enzymes into glucose receptors B. Greater glucagon secretion C. Greater thyroxine secretion D. Insulin secretion specifically to raise blood glucose
Zadanie 25
Animals receive carbohydrate meals in a model experiment. Which hormonal response can explain the positive association shown? A. Glucagon lowers blood glucose by preventing hepatic glucose release B. Insulin promotes conversion of glucose into glycogen in…
- Materiał graficzny
Zadanie 2c
Give one pancreatic secretion other than a digestive enzyme and identify the cell type producing it.
Zadanie 27
Nutrients move from the intestinal lumen into the circulation and then reach the liver. Explain adaptations of villus epithelial cells for absorption and what can happen to absorbed nutrients in the liver.
Zadanie 1e
Informacja do zadań 1 a-1 h. All values are constructed for a model investigation of mammalian metabolism. At steady state, a circulating metabolite enters the blood at the same rate as it is removed, so its concentration can remain stable despite continuous…
- Materiał graficzny
Zadanie 1e
Informacja do zadań 1 a-1 h. All values are constructed for a model investigation of mammalian metabolism. At steady state, a circulating metabolite enters the blood at the same rate as it is removed, so its concentration can remain stable despite continuous…
- Materiał graficzny
Zadanie 5b
(i) Explain the physiological changes in type 1 diabetes. (ii) State a measure used in managing this condition.