BCLife sciences 11 (June 2018)11Big Idea: Life is a result of interactions at the molecular and also cellular levels.
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Reproduction

Tomatoes belong to a team of plants recognized as flowering plants, also called angiosperms. The tomato tree reproduces sexually. This way that it needs both female and also male offal to create seeds. 

Every tomato seed has a tiny tomato plant inside. Once the conditions are simply right, tomato seeds will certainly germinate. As soon as the particle germinates, the radicle, or young root breaks out the the seed and also grows down into the ground. Cotyledons, or seed pipeline then thrive up the end of the ground towards the sun. Quickly the plant creates its first true leaves, then more leaves and flower buds. On mature tomato plants, flowers develop. This is where sexual reproduction occurs.

You are watching: A tomato plant is a type of angiosperm

 


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Graphic - text Version

The life cycle starts indigenous seeds. As the tree grows and matures, flower develop. After ~ pollination and fertilization, fruit develop. These contain seeds, enabling for the life cycle to start again.

Flower Structure

Flowers are crucial for reproduction and the production of seeds. A tomato flower is sometimes called a perfect flower due to the fact that both male and female organs are located inside it.


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Graphic - message Version

The ovary within the flower develops into the tomato fruit that we eat. The petals, stamens, and stigma dry up and also fall off together the fruit matures

The tomato flower has 4 main parts:

The woman reproductive body organ is the ovary. It is located at the basic of the pistil. The ovary includes ovules. Once the ovules room fertilized, one embryo can build and kind the seeds that will be found inside the tomato fruit.

Fruit Development

For flowers to develop into the tomato fruit that we eat, 2 things need to happen: pollination and fertilization.

Did girlfriend know?

Not every insects have the right to buzz-pollinate. Because that example, bumblebees can pollinate tomato flowers, however honeybees can"t. Honeybees likewise don"t visit tomato flowers because they have no nectar to feed on.


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Bumblebee pollinating a tomato flower (Source: SimplyCreativePhotography via iStockphoto).

 

Fruit or Vegetable?

Is tomato a fruit or a vegetable? In cooking, tomato is thought about a vegetables mostly since it is no sweet and also not usually provided in desserts. But in botany, tomato is a fruit. Fruit is defined as a part of a plant that establishes from a flower’s ovary and also has seeds. Because a tomato establishes from the flower’s ovary and it has seeds inside, it is a fruit.

Glossary

Angiosperm: flowering plant.

Anther: The component of the stamen whereby pollen is produced.

Buzz Pollination: A process where part insects soil on flowers and also shake pollen off of stamens by contracting their trip muscles causing vibrations.

Cotyledon: The part of an embryonic plant the will end up being the very first leaves. This are additionally known together seed leaves.

Embryo: The tiny, immature plant within a seed.

Endosperm: The part of a seed the stores food to be used by the embryo throughout germination.

Fertilization: The procedure when two gametes come together and also develop into a seed.

Gametes: cell that have the right to fuse together during sexual reproduction. Each cell contains fifty percent the hereditary information for the brand-new plant. In flowering plants, the masculine gamete is in the pollen and the mrs gamete is in the ovule.

Germination: The process of a plant beginning to flourish from a seed. This typically happens after a duration of dormancy. An excellent environmental conditions are crucial to begin germination.

Filament: The component of the stamen the supports the anther.

Ovary: The component of the pistil that consists of the ovules.

Ovule: A structure located within the woman ovary. It consists of female genetic information and can build into a seed after ~ fertilization.

Pedicel: The stem that attaches a flower to the main plant.

Petal: This is the part of the flower the attracts insect pollinators. In tomato flowers, the petals usually are yellow in colour.

Pistil: The female part of the flower. That is comprised of the stigma, style, ovary and the ovules, i beg your pardon contain the female hereditary information.

Pollen: Pollen consists of the male hereditary information. The is found on the anther in ~ the top of the filament, i m sorry is component of the stamen.

Radicle: The component of one embryo that will become the root.

Seed Coat: The protective covering of a seed.

Seedling: The young tree that establishes from a seed.

Sepal: This green part of the flower protects the bud before it opens. 

Sexual Reproduction: In plants, this type of reproduction happens as soon as male pollen is deposited on female tree organs to develop seeds.

Stamen: This is the male component of the flower. That is comprised of the filament and also the anther, which is covered in pollen. 

Stigma: This is wherein the pollen is deposited to permit fertilization. That is component of the pistil, the mrs reproductive organ, and is at the top of the style, above the ovary. 

Style: The component of the pistil over the ovary and also below the stigma.

Wind Pollination: A procedure where flowers room pollinated through the assist of wind.

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Is tomato a fruit or vegetable? (2018)

A video clip (3:03 min.) from DreamWorks TV experimenting the controversy. It even went before the united state Supreme Court! 

A bumblebee buzz-pollinates a tomato flower (2016)

Video clip (0:23 min.) indigenous PLOS Media the a bumblebee buzz-pollinating tomato flowers. 

Tomato tree from tomato part (2018)

Time-lapse video (1:37 min.) of tomato seeds germinating from within tomato slices and growing into a mature tree in under two minutes!

Flowering values (2003)

Lesson from Don Lee & Kim Todd top top the life cycle of flowering plants, finish with graphics and also quizzes.