HORTICULTURE SCIENCE
PLANT BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Water enters the plant through the surface of the leaf for transpiration
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Gases for photosynthesis are exchanged through the surface of the leaf.
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Energy for cellular reproduction is absorbed through the surface of the leaf.
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Carbon dioxide enters the plant through the surface of the leaf for cellular reproduction.
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Detailed explanation-1: -Terrestrial plants have stomata on the surface of their leaves. A single stomata is surrounded by two guard cells that change shape in response to environmental factors and open or close the stoma.
Detailed explanation-2: -Stomata regulate gas exchange between the plant and environment and control of water loss by changing the size of the stomatal pore. This stomatal movement is affected by several environmental stimuli, such as relative humidity, CO2 concentration, and light intensity.
Detailed explanation-3: -Lower surfaces are not directly exposed to sun. This tends to reduce excessive water loss. It is a beneficial adaptation to check water loss in plants. Thus, the underside of leaves have more stomata.
Detailed explanation-4: -This helps us because having too much carbon dioxide in the air makes it hard for us to breathe. Terrestrial plants get plenty of air so they usually have stomata on the bottoms of their leaves. Aquatic plants have their leaves near or under the water, but they also need to breathe.