Fruit Notes.

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Presentation transcript:

Fruit Notes

What are they? Fruits are structures of angiosperms that develop from the ovary and encloses the seed

What are they? (con’t) Fleshy fruits contain sugars to attract animals for seed dispersal Non-fleshy fruits use parthenocarpy to develop without fertilization

Layering The ovary develops into the 3-layered fruit Exocarp – outer layer containing the epidermis Mesocarp – middle layer that varies in thickness Endocarp – shows variation from species to species

Fruit Types There are 4 ways of classifying fruits: Fruits develop from a single, mature ovary. The first group is simple fruits which can be broken into fleshy and dry fruits The difference between fleshy and dry is the state of their pericarp at maturity.

Dry Fruit Fleshy Fruit

Fruit Types (con’t) Dry fruits can be broken into dehiscent and indehiscent fruits.

Dehiscent – split at maturity

Indehiscent – don’t spilt at maturity

Dehiscent or Indehiscent?

Fruit Types (con’t) Another fruit type is an aggregate fruit which contain many ovaries from a single flower. The ovaries mature together. Another type are multiple fruits which are made of ovaries from many flowers fuse together in a mass.

Aggregate Fruit Multiple Fruit

4 Types Simple, fleshy Simple, dry Aggregate Multiple Can you tell which fruit is which type on the next slide?