年年都tip respiration
難既咪問下 cyclic events , 邊個邊個concentration升降。點解。
Explain the importance of increase in blood supply to gut after meal ? (3)->increased blood supply
->absorbed food can be transported away more rapidly
->steeper concentration gradient of digested food between small intestine and blood can be maintained
->rate of diffusion of digested food increases
->rate of absorption increases
應該咁多