EMBRYOLOGY
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Humid Weather
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If plant loses too much water
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high temperatures
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high wind
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high level of carbon dioxide
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Detailed explanation-1: -Wind speed affects transpiration when it increases the water movement on the lead surface. High winds increase water evaporation, and thus the plant may choose to transpire less (close its stomata) during windy conditions, to preserve water.
Detailed explanation-2: -Rate of transpiration is decided by the vapour pressure gradient between internal environment of leaf and atmosphere. Thus, rate of transpiration will be more during summers when atmospheric humidity is low.
Detailed explanation-3: -Stomata are mouth-like cellular complexes at the epidermis that regulate gas transfer between plants and atmosphere. In leaves, they typically open during the day to favor CO2 diffusion when light is available for photosynthesis, and close at night to limit transpiration and save water.