Lab 1 Flashcards
shoot
system made up of leaf and stem
cotyledons
smaller, thicker leaves lower on the stem
epicotyl
region above cotyledons
hypocotyl
region below cotyledons
blade
flattened portion of leaf
petiole
attaches blade to stem
stipules
part of leaf attached below petiole on the stem
axillary bud
where side branches grow from, in angle formed by leaf and stem
apical meristem
stems and roots grow from tip
node
where leaf starts
internode
region of stem between nodes
opposite leaf pattern
2 leaves directly on either side of node
alternate leaf pattern
one leaf attached at each node
whorled leaf pattern
3+ leaves attached at each node
petiolule
petiole like structure that attaches leaflets
rachis
what petiolules are attached to
palmately compound leaf
leaflets coming from a point (central rachis)
pinnately compound leaf
leaflets come from petiolulues
rhizome
stem that grows horizontally underground
flower
reproductive part made of modified leaves
corn seed (embryo)
embryo surrounded by starch endosperm, endosperm stores energy rich compounds (food)
bean seed (embryo)
no seperate endosperm
embryo had 2 large cotyledons with stored food reserves
similarity between corn and bean seed
both had outer protective seed coat layer
vegetables with reduced internodes/enlarged leaves
lettuce, cabbage, onion
what part of brussel sprouts are enlarged?
axillary buds
vegetables with enlarged stem with stored food reserves
potatoes (rhizomes), kohlrabi
vegetables with enlarged roots with stored food reserves
carrots, radishes, beets
vegetables with enlarged petioles
celery, rhubarb
