SCIENCE
RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The plant will produce less glucose.
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The plant will enter a state of dormancy.
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The plant will lose its chlorophyll and become heterotrophic.
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The plant will die due to a decreased production of carbon dioxide.
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Detailed explanation-1: -A plant is enclosed in a sealed bell jar. Oxygen is supplied to the plant, while carbon dioxide is removed. Which statement best explains what will happen to the plant? The plant will produce less glucose.
Detailed explanation-2: -Plants excrete more carbon dioxide at night compared to during the day because they cannot do photosynthesis at night. Photosynthesis requires sunlight. So, during the day plants take in carbon dioxide and water and use sunlight to do photosynthesis to make oxygen and glucose.
Detailed explanation-3: -The Process of Respiration in Plants Leaves possess stomata – tiny pores, for gaseous exchange. The oxygen consumed via stomata is used up by cells in the leaves to disintegrate glucose into water and carbon dioxide.
Detailed explanation-4: -Plants help us breathe by taking in carbon dioxide, and letting out oxygen through their leaves. This process is called plant respiration. The oxygen is a by-product of photosynthesis.
Detailed explanation-5: -Conclusion. The only gas that can turn lime water milky is carbon dioxide. When carbon dioxide reacts with lime water, it forms calcium carbonate (CaCO3), thus giving lime water its milky appearance. So, we can conclude that humans and animals give out CO2 during respiration.