Functions of a leaf and plant transport and tissues Flashcards
What is the function of a cuticle
it is a protective layer that reduces water loss from the leaf while allowing light through
whats the function of a spongy mesophyll tissue
it contains large air spaces to allow gases to diffuse efficently through the leaf
whats the function of a stoma
it has small openings that allow gases to diffuse into and out of the leaf
function of a guard cell
a pair of cells that control the opening and closing of the stomata
function of a palisade mesophyll tissue
contains many chloroplasts to absorb light for photosynthesis
function of air spaces
allow oxygen and carbon dioxide to diffuse through the leaf
Why do plants have a transport system
plants are too large for materials to diffuse in and out
Only small organisms rely on
diffusion
Why can only small organisms rely on diffusion
they have a large surface area to volume ratio,
a short diffusion distance
lower demand for nutrients
what do plants produce by the process of photosynthesis
glucose
what is glucose needed for
all living cells within the plant for respiration
What do plants need for all living cells
amino acids and minerals
Name 2 different types of tissue which are found in flowering plants
-Xylem
-Phloem
What are Xylem and Phloem needed for and where are they found
-transporting materials around the plant
-vascular bundles