LABORATORY REVIEW
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It will increase exponentially.
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It will remain constant.
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It will decrease to a minimum level.
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It will increase to a maximum level.
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Detailed explanation-1: -When you increase the level of light, plants will photosynthesize more. But, if you have too much light, than the other 2 ingredients become limiting and photosynthesis can no longer increase with the level of light. When this occurs, leaves can experience sunburn damage.
Detailed explanation-2: -As light intensity increases, the rate of photosynthesis will increase as long as other factors are in adequate supply. As the rate increases, eventually another factor will come into short supply. The graph below shows the effect of low carbon dioxide concentration.
Detailed explanation-3: -If we increase the amount of CO2under laboratory conditions and if the light and temperature are not the limiting factors, the rate of photosynthesis increases. This increase is observed up to 1% of CO2concentration. At the same time very high concentration of CO2 becomes toxic to plants and inhibits photosynthesis.
Detailed explanation-4: -The rate of photosynthesis increases as the temperature rises. During photosynthesis, a temperature of more than 40 °C slows down the process. Because it is an enzyme-controlled process, this is the case. It occurs as a result of enzymes being involved in temperature-sensitive chemical processes.