PLANT TISSUES

• • Epidermal tissues cover and protect the surfaces of the plant, often secreting a waxy substance to waterproof 
• • Palisade mesophyll tissue containing lots of chloroplasts that carry out photosynthesis
• Spongy mesophyll tissue has some chloroplasts for photosynthesis but has big air spaces and large surface area to make diffusion easier.
• • Xylem tissue carries water and dissolved minerals ions from the roots up to the leaves 
• • Phloem tissue carries dissolved food from the leaves around the plant
• • Meristem tissue can differentiate into all the other cell types needed as it is made of rapidly dividing cells that are found at the growing roots and shoots.