HORTICULTURE

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HORTICULTURE SCIENCE

PLANT BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
During the process of transpiration, water is pulled up from the roots and into the leaves of the plant for use during photosynthesis. If the plant has excess water in the leaves, transpiration releases that water into the air.Based on the description of transpiration, what internal and external conditions would most likely cause this process to occur?
A
There is a lack of water in the plant, and it is daytime.
B
There is a lack of water in the plant, and it is nighttime.
C
There is plenty of water in the plant, and it is daytime.
D
There is plenty of water in the plant, and it is nighttime.
Explanation: 

Detailed explanation-1: -If the plant has excess water in the leaves, transpiration releases that water into the air.

Detailed explanation-2: -As transpiration occurs, it deepens the meniscus of water in the leaf, creating negative pressure (also called tension or suction). The tension created by transpiration “pulls” water in the plant xylem, drawing the water upward in much the same way that you draw water upward when you suck on a straw.

Detailed explanation-3: -Evapotranspiration also includes transpiration, which is the water movement from the soil to the atmosphere via plants. Transpiration occurs when plants take up liquid water from the soil and release water vapor into the air from their leaves.

Detailed explanation-4: -When the plant opens its stomata to let in carbon dioxide, water on the surface of the cells of the spongy mesophyll and palisade mesophyll evaporates and diffuses out of the leaf. This process is called transpiration .

Detailed explanation-5: -The water is released in the form of vapour. This process is called as transpiration.

There is 1 question to complete.
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