Biologia IBPaper 2, maj 2026, TZ1wzorowane16 pktotwartetrudne (szac.)
During exercise, oxygen delivery must meet increased demand in mammalian tissues. (a) Outline the molecular structure of haemoglobin. (b) Explain how the Bohr effect improves delivery of oxygen to tissues with a high respiration rate. (c) Describe features of…
Biologia IBPaper 3, maj 2023, TZ2wzorowane6 pktotwarteśrednie (szac.)
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.