BIOG162 - Module 24 Fruits and Seeds

Covers fruit types and seeds.

pericarp

the ovary derived portion of a fruit

accessory fruit

a fruit where most tissue comes from the receptacle at the flower’s base, the ovary is still involved

simple fruit

come from only 1 carpel of 1 flower

aggregate fruit

come from several carpels in 1 flower

fruitlets

formed by carpels in aggregate fruit

fleshy fruits

have plenty of water, sugar, and soften as they ripen

dry fruits

dry out as they ripen

the goal of fruits

effectively disperse their seeds

seed

a developed ovule after fertilization, go from about 90% water to 5-20% water to protect the embryo

radicle

the embryonic root

plumule

the remaining embryonic shoot in dicots

hypocotyl

below the cotyledon attachment in dicots

epicotyl

above the cotyledon attachment in dicots

scutellum

single cotyledon in grass

coleorhiza

protect the radicle in monocots

multiple fruits

form from the fusion of flowers