What is the transpiration of a leaf What is the transpiration of a leaf?

It was originally a leaf, and when it first met humans, it was used as a remedy for detoxification, and through the hands of the Chinese, it turned into a kind of fu (fù) yu belief. According to the way Chinese characters are written, tea is a person between plants and trees. For more knowledge points**, WeChat pays attention to related disciplines*** "Biology Master".

The removal of water from the leaves through the stomata on the back of the leaves is transpiration, which can provide power for the plant to transport water and regulate the temperature. This is the transpiration of the leaves.

Transpiration is not only affected by external environmental conditions, but also regulated and controlled by the plant itself, so it is a complex physiological process. The main processes are: moisture in the soil Root hairs Root ducts Stem ducts Leaf ducts Stomata Atmosphere, when plants are young, all surfaces exposed to air can transpire.

Transpiration is the main driving force for plants to absorb and transport water, and without transpiration, the water absorption process caused by transpiration pull cannot occur. Transpiration also helps transport inorganic salts. Transpiration lowers the temperature of the leaves so that they don't get burned.

Transpiration also favors in vivo and in vivo gas exchange.

Transpiration is one of the main driving forces for water absorption and transportation of plants, especially for tall plants, if there is no transpiration, the water absorption process caused by transpiration pull cannot be produced, and the higher part of the plant will not be able to obtain water, so it is particularly important for tall trees.

Since inorganic salts must be dissolved in water in order to be absorbed and run in the body, since transpiration is the driving force for water absorption and flow, minerals will also be inhaled and distributed to all parts of the plant body with the absorption and flow of water, helping plants to transport these two types of substances.

Transpiration can reduce the temperature of the leaves, when the sun shines on the leaves, most of the energy will be converted into heat, if the leaves do not have the function of cooling, the temperature of the leaves will be too high, and the leaves will be burned. In the process of transpiration, the water becomes water vapor because it needs to absorb heat energy.

Transpiration favors in vivo and in vivo gas exchange. When the leaves are photosynthesizing, the stomata will open, and the open stomata will become a channel for carbon dioxide, oxygen, and water vapor. If the stomata are closed, it will also affect the physiological processes such as photosynthesis and respiration of plants.

Summary. Only a little of the water emitted by the transpiration of the plant is involved in the composition of the plant body and is used to maintain normalcy, and the rest of the water is emitted due to transpiration. However, the water consumed by the plant body due to transpiration is not simply wasted, it is of great significance to the activities of the plant itself.

Transpiration can promote the absorption of water by the plant body from the soil, and promote the transfer of water and inorganic salts from the roots to the stems, leaves and other organs, and can also make the plant body effectively dissipate heat, increase the humidity in the air, and help increase rainfall.

What are the benefits of transpiration of leaves?

Only a little of the water emitted by the transpiration of the plant is involved in the composition of the plant body and is used to maintain normalcy, and the rest of the water is emitted due to transpiration. However, the water consumed by the plant body due to transpiration is not simply wasted, it is of great significance to the activities of the plant itself. Transpiration can promote the absorption of water by the plant body from the soil, and promote the transfer of water and inorganic salts from the roots to the stems, leaves and other organs, and can also make the plant body effectively dissipate heat, increase the humidity in the air, and help increase rainfall.

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Increase rainfall and so on.

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Generally, when the plant is young, all the surfaces exposed to the air can transpire, which can reduce the temperature of the leaves, avoid the heat burn of the mesophyll cells, and also promote the absorption of water from the soil, and transport the water from the leaves, and also send the inorganic salts dissolved in the water to all parts of the plant. The transpiration of the cuticle of leaves and stems of herbaceous plants is called cuticle transpiration. The cutaneous transpiration of young leaves can reach half of the total transpiration.

Plants that grow in drought conditions for a long time have lower cuticle transpiration and less total transpiration. Only a little of the water emitted by the transpiration of the plant is involved in the composition of the plant body and is used to maintain normalcy, and the rest of the water is emitted due to transpiration. However, the water consumed by the plant body due to transpiration is not simply wasted, it is of great significance to the activities of the plant itself.

Transpiration can promote the absorption of water by the plant body from the soil, and promote the transfer of water and inorganic salts from the roots to the stems, leaves and other organs, and can also make the plant body effectively dissipate heat, increase the humidity in the air, and help increase rainfall. Much of the water absorbed by green plants through their roots is used for transpiration, which promotes the water cycle. The transpiration of green plants can increase atmospheric humidity and increase precipitation, and the stems and leaves of plants can also slow down the erosion of the ground by rainwater.

Moreover, dead branches and fallen leaves are like a thick sponge, which can absorb a lot of rainwater, promote more water to seep into the ground, and replenish surface water. So plants are green reservoirs that play an important role in the water cycle. We should pay more attention to protecting nature, making the environment a better place, and creating conditions for human health.

Benefits: 1) Transpiration is a major driving force for water absorption and transport in Chunbu plants;

2) transpiration promotes the absorption and transport of minerals by plants;

3) transpiration can reduce the temperature of plant body and leaf panicle;

4) The normal progress of transpiration is not stuffy, and the stomata are open, which is conducive to CO2 fixation in photosynthesis.

Leaves are the main organs of transpiration group action.

Transpiration is a process in which water in a plant is released into the atmosphere in the form of water vapor through the stomata of the leaves. The stomata on the epidermis of the leaf is the gateway for gas to enter and exit, and the leaf is the main part of transpiration, and secondly, the petiole and the young stem can also transpirate a small amount of water, and can also carry out a certain amount of transpiration, so the main organ of plant transpiration is the leaf.

The external factors influencing transpiration are as follows:

1. The effect of light on transpiration is first to cause the opening of stomata and reduce the resistance of stomata to enhance transpiration. Secondly, light can increase the temperature of the atmosphere and leaves, increase the vapor pressure difference between the inside and outside of leaves, and accelerate the transpiration rate.

2. Temperature has a great influence on the transpiration rate. When the atmospheric temperature decreases, the leaf temperature is 2 10 higher than the air temperature, so the increase of vapor pressure in the cavity under the stomata is greater than the increase of air vapor pressure, which increases the vapor pressure difference between the inside and outside of the leaf and increases the transpiration rate. When the temperature is too high, the leaves lose too much water, the stomata close and the hail cracks, and the transpiration weakens.

3. When the temperature is the same, the greater the relative humidity of the atmosphere, the greater the vapor pressure, the difference between the vapor pressure inside and outside the leaf becomes smaller, and the water vapor in the cavity under the stomata is not easy to diffuse, and the transpiration is weakened; Conversely, if the relative humidity of the atmosphere is low, the transpiration rate will be accelerated or closed.

4. The wind speed is large, which can blow away the water vapor diffusion layer outside the leaf stomata and replace it with air with low relative humidity, which not only reduces the diffusion resistance, but also increases the vapor pressure difference inside and outside the leaf, which can accelerate transpiration. Strong winds may cause stomata to close, internal resistance to increase, and transpiration to weaken.

Summary. Hello, 1The transpiration pull produced by transpiration is the main driving force for plants to passively absorb and transport water, which is especially important for tall trees.

2.Transpiration promotes the transport of substances in xylem sap. Minerals, salts in the soil and substances synthesized by the roots can be transported and distributed to all parts of the plant body with water absorption and collection.

3.Transpiration lowers the temperature of the plant. This is because water has a high heat of vaporization, which can dissipate a large amount of radiant heat during transpiration.

4.The normal process of transpiration is conducive to the assimilation of CO2, because when the leaf undergoes transpiration, the stomata are open, and the open stomata become the channel for CO2 to enter the leaf. Hope mine can help you.

What is the benefit of transpiration from the leaves of the plant.

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Hello, 1The transpiration pull produced by transpiration is the main driving force for plants to passively absorb and transport water, which is especially important for tall trees. 2.

Transpiration promotes the transport of substances in xylem sap. Minerals, salts in the soil and substances synthesized by the roots can be transported and distributed to all parts of the plant body with water absorption and collection. 3.

Transpiration lowers the temperature of the plant. This is because water has a high heat of vaporization, which can dissipate a large amount of radiant heat during transpiration. 4.

The normal process of transpiration is conducive to the assimilation of CO2, because when the leaf undergoes transpiration, the stomata are open, and the open stomata become the channel for CO2 to enter the leaf. Hope mine can help you.

Transpiration of plant leaves.

The benefits for humans are that they reduce the ambient temperature around the plant and increase the humidity of the surrounding air, which is refreshing.

The benefits to the plant itself are: to reduce the temperature of the plant itself, to prevent solar fever during high temperature periods; Transpiration produces a transpiration pull, which facilitates the absorption of water and nutrients by the roots and their upward transport through the ducts.

Hello! Transpiration has two main effects on plants: as a transport motive force for water and inorganic salts, and as a lower foliar temperature.

1. First of all, transpiration is the driving force of plant water transport, through water evaporation, transpiration tension is generated between plant duct cells, so as to transport root water to the plant canopy. The essential inorganic salts of plants are soluble in water, so transpiration is also the driving force for the transport of mineral nutrients in plants. 2. Secondly, water evaporation will absorb heat, and through transpiration, the leaf temperature can be reduced to avoid the leaf temperature being too high under the direct sunlight in the high temperature season, so as to ensure that the leaf cells can carry out physiological activities and play their functions normally.

Benefits of transpiration of leaves for people: regulates the climate, purifies the air. On the green leaves, water vapor like fog is emitted from time to time.

This phenomenon of gaseous water evaporating into the atmosphere is called leaf transpiration.