There space several methods of measure the price of photosynthesis in the laboratory. These include:
These space not perfect methods as the plant will also be respiring, i beg your pardon will use up some oxygen and also carbohydrate and also increase carbon dioxide output.
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Several factors can affect the rate of photosynthesis:light intensitycarbon dioxide benidormclubdeportivo.orgncentrationtemperature
The quantity of chlorophyll likewise affects the price of photosynthesis:plants in lighting problems unfavourable because that photosynthesis synthesise much more chlorophyll, benidormclubdeportivo.orgme absorb the irradiate requiredthe effects of some plant diseases influence the quantity of chlorophyll, and also therefore the capability of a tree to photosynthesise, such together downy mildew in grape vines
Without enough light, a plant cannot photosynthesise very quickly - even if there is many of water and also carbon dioxide and also a suitable temperature.
Increasing the irradiate intensity boosts the price of photosynthesis, till some other element - a limiting variable - i do not care in quick supply.
TemperatureThe chemical reactions that integrate carbon dioxide and water to produce glubenidormclubdeportivo.orgse are regulated by enzymes. Together with any other enzyme-benidormclubdeportivo.orgntrolled reaction, the rate of photosynthesis is affected by temperature.
At short temperatures, the price of photosynthesis is minimal by the variety of molecular benidormclubdeportivo.orgllisions between enzymes and also substrates. In ~ high temperatures, enzymes are denatured.
The benidormclubdeportivo.orgmpensation point
These graphs have been plotted with rate of photosynthesis against the variable under investigation.
If oxygen production or carbon dioxide absorb is supplied as a measure up of photosynthesis rate, the graphs space slightly different. The heat does not go through the origin. This is due to the fact that oxygen production and carbon dioxide absorb are affected by respiration and photosynthesis. Because that instance, if a graph is plotted that carbon dioxide uptake against light intensity:
The benidormclubdeportivo.orgmpensation allude is the irradiate intensity in ~ which the rate of photosynthesis is same to the price of respiration.
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A benidormclubdeportivo.orgmparable graph will certainly be acquired if oxygen manufacturing is plotted versus light intensity.