Fruits

-ovary: matures into a fruit

-seed (ovule) inside fruit

-some fruit have additional flower parts, Accesory tissues

• 1.) pollination
• 2.) fertilization
• 3.) seed development

-transfer of pollen from anther to stigma

a) double fertilization= 2 fertilizing events

• 1.) sperm + egg= zygote and embryo
• 2.) sperm + 2 pair of polar nuclei= endosperm

-ovule develops into seeds

-embryo (new plant) is inside the seed

• 1.) Apromixis
• 2.) seedless fruit

• -seed formed asexually
• a) no fertilization of egg and sperm
• -called parthenocarpy

A) has steps 1 and 2 (pollination and fertilization)

• b) seeds dont develop
• -oranges, seedless watermelons, bananas

a) derived from an ovary

b) pericarp (ovary wall) becomes enlarged

• c) 3 parts of pericarp
• -exocarp
• -mesocarp
• -endocarp

outside, skin

middle, flesh

inside, pit or stone

• a) additional tissue beside ovary wall
• b) with inferior ovary

1) floral cup

2) Receptacle

- base of sepals and petals

-forms a cup around ovary

ex) apple

-often enlarged

-base of flower/ fruit stalk

1) protect the seeds inside

2) disperse seeds

ex) acorn and nut

-sometimes with fruit

• a) wind
• b)water
• c)animals *
• d) fruit explodes *

a) fruit becomes colorful/sweet eaten by animals

b) spiny or sticky if covered by animal fur/less

-shoots out seeds