Waxy cuticle - to prevent water loss , Upper epidermis , Palisade Mesophyll - main photosynthesising layer , Spongy Mesophyll - contains air gaps for gas exchange , Loew epidermis , Stomata - structure to allow gas exchange, a leaf will have lots of these , Guard cells - opens and closes the stomata , CO2 - diffusing in , O2 diffusing out, Thin structure - this reduces diffusion distance and increases surface area.

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

استعادة الحفظ التلقائي: ؟