In summer, some farmers growing crops in glasshouses actually increase the amount of carbon dioxide in the air as all their plants have plenty of water and light and the temperature is near the best possible for photosynthesis. A good way to investigate this might be with the help of algae and you can use the 'Immobilised Algae' practical for this. Although water is needed as a raw material for photosynthesis, don't bother trying to investigate water as a variable - plants normally wilt and wither long before water restricts photosynthesis at the biochemical level.
They need water to support the plant to face the sun as well as a raw material of photosynthesis. At low temperatures, the rate of photosynthesis is limited by the number of molecular collisions between enzymes and substrates. At high temperatures, enzymes are denatured. Chlorophyll absorbs the light energy required to convert carbon dioxide and water into glucose. Chlorophyll is green - so absorbs the red and blue parts of the electromagnetic spectrum and reflects the green part of the spectrum.
Leaves with more chlorophyll are better able to absorb the light required for photosynthesis. The compensation point These graphs have been plotted with rate of photosynthesis against the factor under investigation. If oxygen production or carbon dioxide uptake is used as a measure of photosynthetic rate, the graphs are slightly different.
The line does not go through the origin. This is because oxygen production and carbon dioxide uptake are affected by respiration as well as photosynthesis. Respiration uses oxygen and produces carbon dioxide. Below is a graph measuring the rate of photosynthesis plotted on carbon dioxide against light intensity: This graph shows that with no light, the carbon dioxide uptake is below zero point A on the graph.
With no light, there is no photosynthesis. Leaves with more chlorophyll are better able to absorb the light required for photosynthesis. The compensation point These graphs have been plotted with rate of photosynthesis against the factor under investigation. If oxygen production or carbon dioxide uptake is used as a measure of photosynthetic rate, the graphs are slightly different. The line does not go through the origin. This is because oxygen production and carbon dioxide uptake are affected by respiration as well as photosynthesis.
Vukus
Leaves with more chlorophyll are better able to absorb the light required for photosynthesis. It shows minimum, optimum and maximum temperatures. Gradually the rate falls and at a certain light intensity, the rate of photosynthesis remain constant from point B to point C on the graph.
Molar
Prepare your answers and get ready to share your answers with the class. So the rate of respiration is greater than the rate of photosynthesis. Group 1, Group 2 and Group 3 Question 1: Plant A is placed in a room by the window and plant B is placed on the open field.
Arakazahn
If oxygen production or carbon dioxide uptake is used as a measure of photosynthetic rate, the graphs are slightly different.
Zolozragore
Chlorophyll is green - so absorbs the red and blue parts of the electromagnetic spectrum and reflects the green part of the spectrum. Factors that affect the rate of photosynthesis Factors that affect the rate of photosynthesis What factor most affects the rate of photosynthesis? Light The rate of photosynthesis increases when light gets brighter. Factor 8.
Faukree
Many plants spread out their leaves in such a way that each leaf maximises the amount of light falling on them and the lower leaves are not shaded by the ones above. Yesterday was a dull day, but in the middle of the day it was not cold and I suspect there wasn't enough light for photosynthesis. Light: The photosynthetically active region of the spectrum of light is at wavelengths from nm.
Kigashakar
Will plant A have the same rate of photosynthesis as plant B? However, plant A is placed in a enclosed glass box. Again, at some point, a factor may become limiting. When the light intensity is increased, then a higher concentration of CO2 will be decomposed and the rate of photosynthesis increases till light again becomes a limiting factor. Leaves having high chlorophyll content do not photosynthesize rapidly since they lack the enzymes or co-enzymes to use the products of the light reactions to reduce available CO2.
Vizragore
In summer, some farmers growing crops in glasshouses actually increase the amount of carbon dioxide in the air as all their plants have plenty of water and light and the temperature is near the best possible for photosynthesis.
Nenris
At low temperatures, the rate of photosynthesis is limited by the number of molecular collisions between enzymes and substrates. Air Pollutants In summer, some farmers growing crops in glasshouses actually increase the amount of carbon dioxide in the air as all their plants have plenty of water and light and the temperature is near the best possible for photosynthesis. Temperature range at which optimum photosynthesis can occur, varies with the plant species.