Q:

What is the process of transpiration?

A:

Quick Answer

The process of transpiration is when water moves through plants from the roots to the leaves, then changes to vapor as it leaves the plant. Transpiration cools the plant and also provides it with nutrients, carbon dioxide and water.

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Full Answer

The rate of transpiration is dependent on a few different factors:

  • Temperature

    As the temperature increases, the transpiration rate goes up. The openings in the plant that release the vapor are called stoma, and when the temperature is warm, the stoma are open. Colder temperatures cause the stoma to close.

  • Relative humidity

    Because it is difficult for vapor to be released into damp air, the less humid it is, the higher the rate of transpiration.

  • Wind and air movement

    The transpiration rate increases with increased air movement. One reason is because air movement is constantly bringing drier air close to the plant, which relates to relative humidity.

  • Soil and moisture availability

    If the soil does not have enough water, the transpiration rate decreases.

  • Type of plant

    The transpiration rate differs depending on the type of plant. Cacti, for example, conserve water and have low transpiration rates.

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Related Questions

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    What is the release of water vapor into the atmosphere by plants called?

    A:

    The release of water vapor into the atmosphere by plants is called transpiration. It produces about 10 percent of the atmosphere's water vapor and is affected by factors such as humidity, temperature, soil type, precipitation and wind.

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    How does water move through plants?

    A:

    The xylem helps in the movement of water from the root to the leaves. Two types of cells in the xylem, tracheids and vessels, form tubes that allow water to move up the plant. Tracheids are found in all vascular plants, but vessels are only found in flowering plants.

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    Does the type of liquid used to water plants affect their growth?

    A:

    Different types of liquid either help or hinder the transfer of nutrients into a plant, meaning that some liquids will help a plant grow faster and stronger while others may halt the growing process or even kill the plant altogether. Land-based plants have evolved to absorb rain or groundwater, so when introduced to other liquids, the plant may not be able to absorb or use the liquid properly.

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    How do plants grow?

    A:

    Plant growth is caused by water that is absorbed by the plant's roots and sunlight that spurs photosynthesis, which is the process of creating food for the plant. Plants also need space, time, clean air, healthy soil and nutrients to grow. The main ingredients that plants need are phosphorous, nitrogen and potassium.

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