PLANT PHYSIOLOGY
RESPIRATION IN PLANTS
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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: -This evolutionary innovation is so central to plant identity that nearly all land plants use the same pores-called stomata-to take in carbon dioxide and release oxygen. Stomata are tiny, microscopic and critical for photosynthesis. Thousands of them dot on the surface of the plants.
Detailed explanation-3: -Several environmental factors affect stomata opening, including hormone, light quality and intensity, air humidity, atmospheric CO2 concentration, biotic and abiotic stresses.
Detailed explanation-4: -Stomata are found on almost every terrestrial plant on Earth. Their multiple roles include releasing moisture and oxygen into the environment, providing internal air conditioning for the plant and allowing carbon dioxide to enter the leaf, where it is converted to sugar during photosynthesis.