Question

If there were very high carbon dioxide conditions (95%) within an environment, what 3 elements of a flowering plant cycle would be affected by an environment high in carbon dioxide?

Answer 1

Ans. -

When levels of carbon dioxide in the atmosphere rise, most plants do something unusual: They thicken their leaves. And since human activity is raising atmospheric carbon dioxide levels, thick-leafed plants appear to be in our future. But the consequences of this physiological response go far beyond heftier leaves on many plants. Though a minor constituent of Earth's atmosphere, carbon dioxide plays an outsized role in influencing climate because of its greenhouse properties. But here's the bottom line: When atmospheric  increase carbon dioxide concentrations , more outgoing radiation is absorbed, leading to warming of the Earth surface.

The plants absorb carbon dioxide for photosynthesis through the same pores called stomata. But when  levels are high carbon dioxide, the leaf pores shrink. This causes less water to be released, diminishing the tree's cooling power.

Higher concentrations of atmospheric carbon dioxide affect crops in two important ways: they boost crop yields by increasing the rate of photosynthesis, which spurs growth, and they reduce the amount of water crops lose through transpiration. During that process they release water vapor.

An increase in the concentration of carbon dioxide gives an increase in the rate of photosynthesis. It is difficult to do this out in the open air but is possible in a greenhouse. The rate of photosynthesis increases linearly with increasing carbon dioxide concentration.

Risingcarbon dioxide concentrations will increase plant growth. More rapid leaf area development and more total leaf area could translate into more transpiration. Rising carbon dioxide Construction trations will decrease leaf stomatal conductance to water vapor. This effect could reduce transpiration.