✔ 最佳答案
注意@~@
The is pale colour in the CENTRAL part only! (係microscope下面睇)
although it was said that it has LESS HAEMOGLOBIN ,
但係!!this structural make a biconcave shape of the red blood cell.
Biconcave的shape係同一個volume入面 ,有最大的surface area!!
(MATHS的問題<<)
biconcave即係好似concave lens,兩邊一齊係中間凹
注意,已經係same volume<<<但係有最大的面積,
咁樣可以 enhance 佢個 rapid diffusion架@~@
咁樣拎O2 , nutrients , or remove urea and CO2,
都會快好多~
呢個就係red blood cells 的 adaptive feature喇@~@
2007-08-13 23:49:49 補充:
所以你諗果陣~要諗relative既兩個red blood cells一個係biconcave ,另一個就唔係的佢地的volume係一樣~即係haemoglobin都可以一樣有咁多~千祈唔好諗左-口-" 一個 biconvex~突然中間少咁d野~咁樣係唔岩架@v@要比較same volume呀~^+++^ 唔會少左haemoglobin 架relatively.