I-1-Definitions for fruits +Definition of fruit in theUS Englishdictionary: Depending on Oxford Dictionaries, the World’s most trusted dictionaries, fruit means: Noun (1): “the sweet and fleshy product of a tree or other plant that contains seed and can be eaten as food”: tropical fruits such as mangoes and papaya eat plenty of fresh fruit and vegetables +Definition of fruit in the Wikipedia dictionary: From Wikipedia, the free encyclopedia,fruitis explained as: Origin: Middle English: from Old French, from Latin fructus 'enjoyment of produce, harvest', from frui 'enjoy', related to fruges 'fruits of the earth', plural (and most common form) of frux, frug- 'fruit'. A fruit (from Latin fructus "enjoyment, profit") is the ripened ovary of a flowering plant. In botany, a fruit is a part of a flowering plant that derives from specific tissues of the flower, one or more ovaries, and in some cases accessory tissues. Fruits are the means by which these plants disseminate seeds. Many of them that bear edible fruits, in particular, have propagated with the movements of humans and animals in a symbiotic relationship as a means for seed dispersal and nutrition, respectively; in fact, humans and many animals have become dependent on fruits as a source of food. Fruits account for a substantial fraction of the world's agricultural output, and some (such as the apple and the pomegranate) have acquired extensive cultural and symbolic meanings. In common language usage, "fruit" normally means the fleshy seed-associated structures of a plant that are sweet or sour and edible in the raw state, such as apples, oranges, grapes, strawberries, bananas, and lemons. On the other hand, the botanical sense of "fruit" includes many structures that are not commonly called "fruits", such as bean pods, cornkernels, wheat grains, and tomatoes. The section of a fungus that produces spores is also called a fruiting body.
Some kinds of fruits
Fruit anatomy is the internal structure of fruit, the mature ovary or ovaries from one or more flowers. In fleshy fruits, the outer and often edible layer is the pericarp, which is the tissue that develops from the ovary wall of the flower and surrounds the seeds. Some plants commonly called "vegetables" such as the cucumber, squash, and tomatoes are actually botanically fruits. In some seemingly pericarp fruits, the edible portion is not derived from the ovary. For example, in the fruit of the ackee tree, the edible portion is an aril; and in the pineapple several tissues from the flower and stem are involved.
1-2-1-Categories of fruits Fruits come in three main anatomical categories: -Simple fruits are formed from a single ovary and may contain one to many seeds. They can be either fleshy or dry. Examples of simple fleshy fruits are berries, drupes, and pomes. Examples of dry fruits include nuts. -Aggregate fruits are formed from a single compound flower and contain many ovaries. Examples include raspberries and blackberries. -Multiple fruits are formed from the fused ovaries of multiple flowers. An example for a multiple fruit is pineapple.
1-2-2-Anatomy of simple fruits
In berries and drupes, the pericarp forms the edible tissue around the seeds. In accessory fruits, other tissues develop into the edible portion of the fruit instead, for example the receptacle of the flower in apples.