Anatomy root stem leaf Flashcards
many cells of –protude in the form of unicellular root hairs in dicot roots
epiblema
chara of CORTEX of dicot roots
thin walled parenchymatous cells with intercellular spaces
————comprises a single layer of barrel shaped cells without intercellular spaces
epidermis
———-has suberin in their tangential and radial walls
epiderml cells
pericycle of dicot root chara
thick walled parenchymatous cells
initiation of lateral roots vascular cambium during secondory growth takes place in
pericycle
pith of dicot root
small and insconspicuous
what is conjuctive tissue
parenchymatous cells lie bet xylem and phloem
usualluy how many xylem and phloem patches in dicot roots
2-4
in dicot roots ,,later —-froms between xylem and phloem
cambium ring
STELE
pericycle
vascular bundle
pith
in monocot roots usuallyy there are ——xylem bundles
six (polyarch)
pith of monocot roots is
large and well developed
———–roots do not undergo any secondary growth
monocot roots
cuticle seen in
sstem
epidermis of dicot stem covered with a thin layer of cuticle and may bear
trichome and a few stomata
what constitute pith in dicot stem
cells arranged in multiple layers between epidermis and pericycle
innermost layer of cortex in dicot root is
endodermis
three sub zones in cortex part in dicot stem
hypodermis
cortical layers
endodermis
hypodrmis consistes of
few layers of collenchymatous cells
hypodermis fn
provides mechanical strength to young stem
cortical layer features
rounded thin walled parenchymatous cells with conspicous intercellular spaces