the leaf is a organ made up of several types of tissue that are adapted to their environment
the epidermal tissue are covered in a waxy cuticle, which helps to prevent water loss
the upper epidermis is transparent so light can pass through it to the palisade layer
the xylem and phloem- deliver water and minerals to the leaf and take away glucose produced by photosynthesis they also support the structure of the plant
the tissue of leaves are adapted for efficient gas exchange e.g the stomata which are small holes in the leaf that allow gases to diffuse in and out