PLANT PHYSIOLOGY
RESPIRATION IN PLANTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Plant cannot absorb water and oxygen from the air which would dry out the plant
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Plant cannot exchange oxygen for carbon dioxide which would decrease photosynthesis
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Glucose made in photosynthesis cannot get to the rest of the plant which would starve the plant
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Sunlight cannot reach the plant’s tissues which would limit photosynthesis
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Detailed explanation-1: -If the stomata are blocked, it will stop the process of photosynthesis.
Detailed explanation-2: -Plant photosynthesis generates oxygen and carbohydrates in strict proportion, so we would run out of oxygen at the same time as we ran out of food. But we would reach lethal concentrations of carbon dioxide long before either of those things happened.
Detailed explanation-3: -What will happen if green plants stop taking in carbon dioxide & release oxygen? If the green plants stopped taking carbon dioxide, they will die and the human beings and animals would not get oxygen and would die too.
Detailed explanation-4: -Without enough light, a plant cannot photosynthesise very quickly-even if there is plenty of water and carbon dioxide and a suitable temperature. Increasing the light intensity increases the rate of photosynthesis, until some other factor – a limiting factor – becomes in short supply.