Leaves Flashcards
origin
leaf primordium
what is the leaf made up of?
petiule and blade
what is the function of the epidermis
keep water in
the mesophyll is divide into ____ layers
two
what are the two layers that make up the mesophylll
the palisade and spongey
the palisade is the ___ layer of cells
upper
the spongey is the ___ layer of cells
lower
what runs through the mesophyll
veins and vascular bundles
the transport tissue in leaves are?
xylem and phloem
what do guard cells have to do with
chloroplasts
what is the function of guard cells
regulate the size of holes in the epidermis
what layer does most of the photosynthesis
palisade
C4 leaves have mesphyll without what?
palisade and spongey
xerophytic
dry places
hydrophytic
wet
mesophytic
moderate
sun leaves have ____ of palisade
mulitiple layers
shade leaves have ____ of palisade
one layer
more light means…
more to do photosynthesis
sun leaves have ___ surface layers
small
shade leaves have ___ surface layers
large
what cells are filled with water and keep the leaf open horizontally
bulliform cells
xerophytic leaves have thicker ____
cuticle
what kind of epidermis does a xerophytic leaf have
multilayer
which type of leaf does not have an epidermis
hydrophytic
what is abundant in hydrophytic leaves?
aerenchyma
leaf modification to catch insects
insectivorous
how does a pitcher plant catch its prey
hairs inside keep the insect from crawling out and waxy area to help them slide down
what are the two proteins found in pitcher plants to digest insects
chitinase and proteinase
liquid that is sticky and full of enzymes to keep bugs in
sundew
what are the two types of betalains
betacyanin and betaxanthins
plants produce either _____ or ______ but always produce _______
anthocyanins, betalains, carotenoids
as plants undergo dormancy what happens to chlorophyll?
it breaks down
when are anthocyanins produced?
bright sunny days and cool crips evenings
leaves fall off
abscission
hormone transported down the blade that decreases in the fall
aoxin
