Leaf adaptations include a large surface area for light absorption, minimized shadowing, thinness for rapid diffusion, transparent cuticle and epidermis, long and narrow mesophyll cells, numerous stomata for gas exchange, light-responsive stomata, air spaces in the lower mesophyll, and a network of xylem and phloem.
Iată adaptările frunzei: suprafață mare pentru absorbția luminii, minimizarea umbririi, dispunere subțire pentru difuzie rapidă, cuticulă și epidermă transparente, celule mezofil lungi și înguste, stomate numeroase pentru schimb de gaze, stomate care răspund la lumină, spații de aer în stratul mezofil inferior, și o rețea de xilem și floem.
| Front | What are the adaptations of the leaf |
|---|---|
| Back | A large surface area that absorbs as much light as possible Minimized overlapping and avoids shadowing of one leaf by another Thin, diffusion distance is short Transparent cuticle and epidermis to let light through to photosynthetic mesophyll cells beneath Long, narrow upper mesophyll cells packed with chloroplast that collect sunlight Large number stomata for gas exchange so all mesophyll cells short diffusion distance away from one another Stomata open and close in response to light Air spaces in lower mesophyll layer to allow rapid diffusion of gas A network of xylem that brings water to leaf cells, phloem that carries away the sugars produced during photosynthesis. |
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