It's like an exam again, haha

I'll answer it

One: the definition of fruit:

A:

Fruit refers to juicy and sweet plant fruit, which is not only nutritious, but also helps digestion. Fruit is the general name of fruits and seeds of some edible plants.

Two: fruit types:

A:

Fruits are divided into:

Berry: multi-carpellate, exocarp with thin epidermis, soft and juicy pulp without seeds.

Such as: tomato, lotus spray, banana, tomato, carambola, papaya and so on.

Citrus fruit: Carpet, fruit wall is rich in oil cells, and fruit juice is rich.

Such as: citrus fruits, grapefruit, grapefruit, lemon, orange, kumquat and so on.

Fruit type:

Berries: such as strawberries, mulberries, cranberries, blueberries, blackberries, raspberries and red vinegar berries. They usually grow in colder places, so it is difficult to see fresh ones except strawberries and mulberries in Taiwan Province Province. This kind of fruit is brightly colored and often used as decoration in cooking. It is rich in vitamin C and anthocyanins, but it is easy to be destroyed during transportation and storage.

Citrus: such as orange, Liu Ding, kumquat, lemon, grapefruit, Wendan, grapefruit, lime, etc. , a fruit with abundant output in Taiwan Province Province, is deeply loved by Chinese people and is considered as "auspicious". It is also the "sour" fruit with the richest vitamin C content among all fruit types. Besides raw food, it can also be made into fruit juice, jam and other products.

Grape: It is a kind of fruit with many varieties, rich yield and bright color, and it is also the one with the highest economic value. Besides fresh food, it can also be made into wine or dried fruit, fruit juice or jam. In addition to the nutrients contained in common fruits, polyphenols contained in black, purple or red grapes and antioxidant proanthocyanidins (OPC) contained in peels and seeds are also very hot health topics recently.

Drupe: such as cherry, peach, plum, plum, jujube, olive, longan, litchi and so on. All of these contain a drupe. Most of them are fresh, and they can also be pickled and made into processed foods, such as candied fruit, canned fruit, dried fruit or fruit wine.

Drupe: such as apples, pears, persimmons and loquats. There are some stones in it. Generally speaking, apples and pears are rich in water-soluble dietary fiber-pectin, which helps to regulate metabolism in the body, while persimmons and loquats have less output because of their short production season.

Melons: such as watermelon, melon, cantaloupe, cantaloupe, etc. Protected by hard skin, it can be stored at room temperature if it is not cut, and it is not easy to rot. It is a sweet fruit with high water content and high sweetness.

Let's answer your last question, which is also the most difficult one:

The question about whether tomatoes are fruits or vegetables.

This problem is very complicated because it has a complicated historical background. At first, the "identity" of tomato was an ornamental plant, and later it became a fruit, and then it was considered as a vegetable. At present, it is generally believed that it is both a vegetable and a fruit.

From the current world cognition, the definition of tomato is very vague, but most people think that tomato is a vegetable even if it is a fruit.

Here's the thing:

The United States has always believed that tomatoes are vegetables.

Our country thinks tomatoes are fruits and vegetables, but they are exported in the name of vegetables.

Let's talk about the different changes of "identity" of tomatoes at various stages:

Tomatoes belong to Solanaceae. Tomatoes, also known as tomatoes, originated in Peru and were introduced to Europe around the beginning of16th century, and began to be used as ornamental plants. They were used as vegetables at the beginning of18th century, and were introduced to Asia from Europe in17th to18th century. The cultivation history of China is relatively late, around the beginning of the 20th century. After 1950s, it was widely planted and became an important vegetable and fruit.

There was a lawsuit about the identity of tomatoes.

1895, British businessmen shipped a batch of tomatoes from the West Indies. According to the laws of the United States at that time, imported fruits were exempt from import duties, while imported vegetables were subject to a tariff of 10%. Customs officials in new york Port identified tomatoes as vegetables. The reason is that it will enter the kitchen, be cooked and become delicious on people's tables. Businessmen think it belongs to fruit, and tomatoes are rich in juice, which ordinary vegetables do not have; Can be eaten raw, different from ordinary vegetables, its shape and color should also belong to the category of fruits. The two sides argued over this//and finally had to take him to the US High Court for trial as a defendant.

After trial, the court unanimously ruled: "Like cucumbers, soybeans and peas, tomatoes are also a creeping fruit. In people's usual discussion, it is always regarded as a meal like potatoes and carrots grown in the garden; Whether it is raw food or cooked food, it is always different from the fruit eaten after meals. "

Since then, tomatoes have been legally recognized as vegetables.

Although the law defines tomatoes as vegetables, at present, it seems that no country defines tomatoes as vegetables according to this law.

Thank you!