4.2.3.1 plant tissues

Cards (9)

What is a leaf?
An organ
what are the plant tissues?
Epidermal tissues
Palisade mesophyll
Spongy mesophyll
Xylem and phloem
Meristem tissue
What are the epidermal tissues?
They cover the surfaces and protect them - they often have a waxy cuticle on the surface which waterproofs the surface
what is the palisade mesophyll?
it contains lots of chloroplasts which carry out photosynthesis
what is the spongy mesophyll?
a tissue containing some chloroplasts for photosynthesis but also has big air spaces and a large surface area to make the diffusion of gases easier
what do the xylem do?
carry water and dissolved mineral ions from the roots up to the leaves
what do the phloem do?
carry dissolved food from the leaves around the plant
what is the meritstem tissue?
it is at the growing tips of roots and shoots and is made up of stem cells
Where are the guard cells found?
Around the stomata