Limiting factors of photosynthesis
In practice, any one of these factors could limit the rate of photosynthesis.
3 limiting factors of photosynthesis?
So how can these factors have an effect on the rate of photosynthesis? Lets start off with the light intensity. When the light intensity is poor, there is a shortage of ATP and NADPH, as these are products from the light dependent reactions. Without these products the light independent reactions can't occur as glycerate 3-phosphate cannot be reduced. Therefore a shortage of these products will limit the rate of photosynthesis. When the carbon dioxide concentration is low, the amount of glycerate 3-phosphate produced is limited as carbon dioxide is needed for its production and therefore the rate of photosynthesis is affected. Finally, many enzymes are involved during the process of photosynthesis. At low temperatures these enzymes work slower. At high temperatures the enzymes no longer work effectively. This affects the rate of the reactions in the Calvin cycle and therefore the rate of photosynthesis will be affected.
If the leaves have a larger surface area they would absorb a large
amount of light energy and this will increase the rate of
photosynthesis provided that there are no other limiting factors such
as availability of water.
Investigate The Limiting Factors of photosynthesis. - …
A limiting factor is a factor that controls a process. Light intensity, temperature and carbon dioxide concentration are all factors which can control the rate of photosynthesis. Usually, only one of these factors will be the limiting factor in a plant at a certain time. This is the factor which is the furthest from its optimum level at a particular point in time. If we change the limiting factor the rate of photosynthesis will change but changes to the other factors will have no effect on the rate. If the levels of the limiting factor increase so that this factor is no longer the furthest from its optimum level, the limiting factor will change to the factor which is at that point in time, the furthest from its optimum level. For example, at night the limiting factor is likely to be the light intensity as this will be the furthest from its optimum level. During the day, the limiting factor is likely to switch to the temperature or the carbon dioxide concentration as the light intensity increases.
Farmers can use their knowledge of these limiting factors to increase crop growth in greenhouses. They may use artificial light so that photosynthesis can continue beyond daylight hours, or in a higher-than-normal light intensity. The use of paraffin lamps inside a greenhouse increases the rate of photosynthesis because the burning paraffin produces carbon dioxide, and heat too.
INVESTIGATE THE LIMITING FACTORS OF PHOTOSYNTHESIS ..
This process is also affected by the temperature surrounding the plant (the species of plant we experimented with, pond weed, photosynthesised best at around 20 degrees centigrade.) Light, temperature & CO2 are known as limiting factors, and each is as important as the next in photosynthes...
25/03/2016 · Photosynthesis - The LIMITING factors
so does the rate of photosynthesis and is a limiting factor
Any one of these could become the limiting factor (the factor which directly affects the rate of photosynthesis).
chapter 11-3 photosynthesis: limiting factors - …
Worksheet with data to draw and analyse graph related to effects of limiting factors on photosynthesis in agriculture.
What are some limiting factors of photosynthesis?
View Lab Report - Limiting Factors on the Rate of Photosynthesis from BIO 311C at Austin College
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