Plant cell organisation Flashcards
What do plant organs work together to make
organ systems
what does the epidermal tissue do
covers the whole plant
what does the palisade mesophyll tissue do
part of the leaf where photosynthesis occurs
what does the spongy mesophyll tissue do
contains big air spaces to allow gases to diffuses in and out of cells
what do xylem and phloem do
transport things like water, mineral ions and food around the plant
what does the meristem tissue do
found at the growing tips of shoots and roots and is able to differentiate into lots of different types of plant cell, allowing the plant to grow.
what is the function of the epidermal tissue
covered with waxy cuticle, which helps to reduce water loss by evaporation
function of upper epidermis
transparent so that light can pass through it to the palisade layer
function of palisade layer
has lots of chloroplasts, meaning that they are near the top of the leaf where they can get most light.
function of xylem and phloem
form a network of vascular bundles, which deliver water and other nutrients to the entire leaf and take away the glucose produced by photosynthesis.
function of lower epidermis
full of little holes called stomata, which let CO2 diffuse directly into the leaf. the opening and closing of the stomata is controlled by guard cells in response to environmental conditions.
what do the air spaces in the spongy mesophyll do
increase the rate of diffusion of gases
