transport system in plants Flashcards
what are the main organs in plants
roots, stems and leaves
what are the roots responsible for (2)
absorbing water and minerals and holding the plant in place
what does the stem do in a plant
provides support for the leaves and buds
what do the leaves do in the plant
they are the site of photosynthesis
what is photosynthesis
the process in which plants makes there own food using sunlight
what is the primary role of a leaf
to carry out photosynthesis
name the tissues in plant leaf that contain chloroplast
spongy mesophyll, palisade mesophyll
which structure are responsible for opening and closing the stomata
guard cell
which structure in the leaf helps reduce evaporation from the leaf surface
waxy cuticle
name the structure which allows movement of gases into and out of the leaf
stomata
which structure allows plants to carry out the process of photosynthesis
palisade mesophyll
what is the function of the waxy cuticle in the leaf
helps prevent evaporation of water
what is the function of the upper epidermis tissue in the leaf
be the protective outer layer
what is the function of the palisade mesophyll tissue in the leaf
contains many chloroplast. Most photosynthesis occurs here
what is the function of the spongy mesophyll tissue in the leaf
some photosynthesis occurs here. The large, moist, air spaces are important for diffusion of gases within the leaf
what is the function of the xylem vessel in the leaf
transports water and minerals
what is the function of the phleom vessel in the leaf
transports glucose around the plant
what is the function of the lower epidermis tissue in the leaf
protective outer layer
what is the function of the guard cells tissue in the leaf
control opening of stomata and therefor control gas exchange
what is the function of the stomata in the leaf
allows gas exchange to occur
what does the xylem transport
water
what does the phloem transport
glucose
what direction does the xylem transport
up
what direction does the phloem transport
all directions (up and down)
are the phloem cells dead or living
living
are the xylem cells dead or living
dead
what are the factors affecting transpiration
wind speed, humidity, light/dark and surface area
what does the plants transport system enable them to carry
water and minerals
what is most of the water in a plant lost to
evaporation
what is the process of evaporation in a plant known as
transpiration
what cell do water and minerals enter the plant through
root hair cells
what is the cell wall of the xylem strengthened by
rings of lignin
what do plants carry out gas exchange through
stoma
what is the apparatus that measures transpiration called
a potometer
what is transpiration
the process of water movement through plant
what does water move form the soil into the root hair through
osmosi
what are sieve tubes
parts of the phloem tube that glucose move through