Read the following statements:
fi The flow of water upward through the xylem in plant can occur
with a velocity of up to 15 metres per hour
(ii) Water is transient in the plants
2(iii) More than 1% water reaching the leaves is used in
photosynthesis
xiv) Transpiration occurs only through stomata
Which of the above statements are incorrect?
1) (ii), (iii) and (iv)
2) (i) and (ii)
31 (iii), (iv)
4) (i), (ii), (iii) and (iv)
rect?
Answers
Answer:
Transpiration is the process in which plants release the water inside it in the form of moisture or water vapor to the external atmosphere.
Water is transient (lasting only for a short time) in plants. Less than 1 %of the water reaching the leaves is used in photosynthesis and plant growth. Most of it is lost through the stomata in the leaves. This water loss is known as transpiration.
Hence the excess water is lost by stomata by the process of Transpiration.
So, the correct answer is 'Transpiration'.
Explanation:
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Answer:
The process by which plants transfer the water that is inside them to the surrounding atmosphere as moisture or water vapor is known as transpiration.
Explanation:
Transpiration.
In plants, water is transitory, or it lasts only briefly. The water that reaches the leaves is used for less than 1% of photosynthesis and plant development. The majority of it is lost through the leaves' stomata. The term "transpiration" refers to this water loss. Water moves through a plant during transpiration when it evaporates from aerial components like leaves, stems, and flowers. Although water is essential to plants, only a tiny portion of the water absorbed by the roots is utilized for growth and metabolism. Transpiration and guttation account for the remaining 97–99.5% of the loss. Stomata (plural "stoma"), which are tiny holes that cover leaf surfaces, are more prevalent on the undersides of the foliage in most plants. The guard cells and their stomatal accessory cells, collectively known as the stomatal complex, surround the stomata and are responsible for opening and closing the pore. Transpiration, which takes place through the stomatal openings, might be considered a required "cost" of opening the stomata to permit the passage of carbon dioxide gas from the atmosphere for photosynthesis. In addition to cooling plants, transpiration alters the osmotic pressure inside cells and permits the bulk movement of water and mineral nutrients from the roots to the shoots. The hydraulic conductivity of the soil and the size of the pressure gradient through the soil are two important variables that affect the velocity of water flow from the soil to the roots. Both of these variables affect the pace at which water flows in bulk from the roots through the xylem to the stomatal pores of the leaves.
As a result, stomata lose the extra water through the process of transpiration.
So, the correct answer is 'Transpiration'.
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