Why are some flowers fragrant and some tasteless?

Most people think that flowers are fragrant, right? This is not the case. There are only a small number of scented flowers on earth, and not all flowers in nature are full of fragrance. A very small number of flowers also emit a foul odor, such as Houttuynia cordata.

Not all flowers have a fragrance, to know the fragrance of flowers, we must first observe the structure of the petals. The petals can be divided into three parts: epidermis, parenchyma, and vascular tissue. In fact, the fragrance of flowers comes from many oil cells in the parenchyma, so the fragrance of flowers depends on this substance, they can secrete fragrant aromatic substances, and after these aromatic substances diffuse in the air, with the help of the sense of smell, we will feel the aroma.

In ordinary life, we can find that there are many kinds of fragrances in flowers, and these different fragrances are determined by different aromatic substances. Some flower petals do not contain this aromatic substance, but they can pass through the metabolic process of cells, so as to continuously produce aromatic oils, so that we smell also fragrant; There are also some flowers whose petal cells contain a special glycosome substance, which itself has no fragrance, and when it is broken down by enzymes, it can emit an aromatic fragrance. Due to the different geographical environment and growth environment of each plant, the ability of various flowers to secrete aromatic oil and decompose glycosomes is also different, therefore, there are different types of fragrance, and the intensity of the smell is different.

It's like women love to wear perfume.

Because of the many oil cells in the parenchyma of the flower, the oil cells can secrete aromatic oils, which are easily diffused into the air, and when these aromatic oils diffuse in the air, wisps of aroma will be formed. Aromatic oils include hydrocarbons, alcohols, esters, ketones, ethers, acids, phenols, amines and heterocyclic derivatives.

Flowers are the reproductive organs of angiosperms (angiosperms, also known as flowering plants or flowering plants), and their biological function is to combine male sperm cells with female egg cells to produce seeds. This process begins with pollination and then fertilization, which leads to the formation of seeds and their dispersal. For higher plants, seeds are their offspring and are the main means of natural distribution of species.

The combination of flowers that grow on the same plant is called an inflorescence.

"Flowers" are also often referred to as "flowers" or "flowers" in life. In the broad sense, flowers can refer to all plants with ornamental value (or artificially planted bonsai), while in the narrow sense, they can refer to all flowering plants. Flowers have always been widely loved and used, and they attract people with their bright colors, graceful posture and aromatic atmosphere.

The main uses of flowers: 1. For the celebration of new birth or religious baptism. 2. It is used as a corsage or button flower at social gatherings or festivals.

3. It is used to express love or respect. 4. Used for wedding decoration. 5. Eat and make tea.

6. It is used as a commemorative gift at the farewell or welcome banquet to express thoughts. 7. It is used in funerals to express mourning. 8. It is used to worship or worship the gods.

9. An important raw material for refining essential oils.

Hello, I'm glad to answer for you, the reason why the flowers are fragrant is because the flowers contain aromatic oils, because the volatilization of the aromatic oils of each flower is different, so the fragrance of the flowers is different. There are also some flowers, although there are no aromatic oils, but in the metabolic process, aromatic oils are produced, so they will also have fragrance. Wishing you a happy <>

1.Flowers have fragrance because there is aromatic oil in front of Wang Min in the flower, and the volatilization of aromatic oil in each flower is different, so the fragrance is not the same.

2.There are also flowers that do not have aromatic oils, but they will produce aromatic oils during the metabolic process, and they will also emit fragrance.

3.Some flowers such as roses and jasmine have a strong fragrance and are sleepy because the degree of volatilization of the aromatic oil in them is relatively large.

Among the many plants, the flowers of most plants are fragrant, except for a few. So why are flowers fragrant? It turns out that chlorophyll is contained in the leaves of flowers.

When chlorophyll is photosynthesized when exposed to sunlight, it produces an aromatic oil that is stored in flowers. This aromatic oil is highly volatile, and when the flowers bloom, the aromatic oil exudes fragrance along with the volatilization of water, which is the floral fragrance that people smell.

Due to the different aromatic oils contained in various flowers, the fragrance emitted is different: some are rich, some are elegant. Generally speaking, the intensity of the floral fragrance is closely related to the location of flowering.

Flowers that grow in the tropics have a strong and strong aroma; The flowers that grow in the cold zone have a light and elegant fragrance.

In addition, usually the lighter the color of the flower, the stronger the fragrance; The darker the color, the lighter the fragrance. White and pale yellow flowers have the strongest fragrance. This is followed by purple and yellow flowers, with light blue flowers having the lightest fragrance.

Generally speaking, when the weather is clear, the sun is strong, and the temperature rises, the aromatic oil in the petals volatilizes faster and drifts farther away, so the fragrance will be stronger. On rainy days or when the sun is weak and the temperature is low, the floral fragrance is lighter.

However, some flowers such as nightshade and Milan bloom at night, because the air temperature is greater, the pores of the petals will open larger, and the aromatic oil will volatilize, so the fragrance they emit at night is purer and stronger than during the day.

Why do flowers have a scent? Because of the aromatic oil of the oil cells in the flower, the glycosomes will have a faint floral fragrance, and if there is no aromatic oil or glycosomes, there will be no fragrance.

The fragrance of the flower comes from the oil cells in the flower, which secrete scented aromatic oils. When these aromatic oils are diffused in the air, with the help of the sense of smell, we will appreciate the pleasant wisps of aroma. However, not all fragrant flowers have oil cells.

They contain only one substance called a "glycosome". Glycosomes are not aromatic oils. However, in the process of decomposition, the sugar body can also emit a faint fragrance.

Flowers' ability to secrete aromatic oils and break down glycosomes is different, which is why some flowers have a strong fragrance and some have a light floral fragrance. Generally speaking, white flowers and light yellow flowers have the strongest aroma, followed by purple flowers, yellow flowers, and light blue flowers have the lightest fragrance. But white peony is not as fragrant as purple rose.

Because the intensity of the floral fragrance is related to the variety of flowers. Some flowers are more fragrant when exposed to the sun, and some flowers only give off a strong aroma on rainy days or at night. Why is there such a difference?

In a word, they are all for the needs of seed propagation and generation, and they are all the result of adapting to the environment. Remember, flowers don't bloom to be appreciated, and flowers don't smell to be comfortable. Many people think that the flowers are full of fragrance, right?

This is not the case. Among the more than 200,000 species of flowering plants, only a small part of the flowers can exude fragrance, according to statistics, in nature, nearly 80% of the flowers are not fragrant, and a small part of the flowers still smell. Red, orange, yellow, green, blue, purple, and many colors of flowers.