A | B |
gymnosperms | produce seeds in cones |
angiosperms | produce seeds in fruits |
germination | seed sprouts |
embryo | baby plant in seed |
epicotyl | becomes leaves |
hypocotyl | becomes stem |
radicle | becomes roots |
cotyledons | seed leaves |
endosperm | stores food in monocot seed |
fibrous roots | many branching roots (monocots) |
tap root | one main root (dicots) |
root cap | protects root tip |
root hairs | absorbs water and minerals |
xylem | transports water and minerals from roots |
phloem | transports food from leaves |
cortex | stores food |
epidermis | outer layer of cells; protects |
woody stems | xylem and phloem are in rings |
herbaceous (nonwoody) stems | xylem and phloem are in bundles |
cambium | adds new xylem and phloem each year |
vascular bundle | made of xylem and phloem; scattered in monocots; ringed in dicots |
outer bark | old inner bark that protects inside of tree |
inner bark | made of phloem tubes that transport food |
sapwood | made of xylem tubes that transport water and minerals |
heartwood | old xylem; supports the tree |
cuticle | waxy covering on leaf; prevents water loss |
upper epidermis | top layer of cells; protects leaf |
palisade layer | cells contain chloroplasts with chlorophyll; photosynthesis occurs here |
spongy layer | loosely packed cell with air space; oxygen and carbon dioxide pass through |
vein | made of xylem and phloem; parallel in monocots; branched in dicots |
lower epidermis | bottom layer of cells; protects leaf |
stomata | small openings in leaf; carbon dioxide enters; oxygen leaves |
guard cells | open and close stomata |
pistil | female (stigma, style, ovary) |
stamen | male (anther, filament) |
stigma | sticky top of pistil |
style | passage from stigma to ovary |
ovary | bottom of pistil containing ovules; becomes a fruit |
ovules | contains eggs; becomes a seed |
anther | produces pollen with sperm |
filament | supports anther |
petals | monocots are in 3's; dicots are in 4's, 5's |
sepals | protect flower bud |
pollination | transfer of pollen from stament to pistil |
monocot | one cotyledon in seed; flower petals in 3's; parallel veins in leaves; vascular bundles scattered in stem; fibrous roots |
dicot | 2 cotyledons in seed; flower petals in 4's or 5's; veins in leaves branched; vascular bundles in stem ringed; taproot systems |
roots | absorb water, anchor plant, store food |
stems | transports food and water, supports plant, stores food |
leaves | make food for the plant |
flowers | reproductive part of angiosperms |