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Photosynthesis consists of two connected sets of reactions....

In the classroom, the conversion of sunlight into electricity can be observed in a Grätzel cell, which employs artificial photosynthesis using natural dyes found, for example, in cherries (see ).

Furthermore, I predict that if the light intensity increases, the rate of photosynthesis will increase at a proportional rate and more oxygen will be produced and therefore the oxygen levels will increase.

Photosynthesis need light to work, so light therefore should speed up the rate of photosynthesis.

The same cycle of the light reaction then takes place.

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...

‘Liquid light’ relies on a different kind of energy conversion – chemiluminescence – to produce a cold light through chemical reactions rather than thermal energy. This is how chemiluminescent light sticks work. In nature, glow worms and creatures that live in the darkness of caves or the deep sea use chemiluminescence for inter- and intra-species signalling.

Light and photosynthetic pigments (article) | Khan Academy

Variables: The variables that might affect the rate of photosynthesis in this experiment are: Temperature: When the temperature rises so does the rate of photosynthesis; this is because as the temperature around the plant rises the enzymes controlling photosynthesis inside the chloroplasts heat up and start moving around faster, the fast moving molecules collide with other fast moving enzymes causing them to react....

Therefore, the more
the light that is available to the green plant, the greater will be
the rate of photosynthesis and so more glucose and oxygen will be

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Role of light in photosynthesis? | Yahoo Answers

11/11/2007 · What is light's role in photosynthesis

The chemical equation of photosynthesis is: [IMAGE]6CO2 + 6H20 C6 H12 O6 + 6O2 it has been proven many times that plants need light to be able to photosynthesize , so you can say that without light the plant would neither photosynthesize or survive....

Role of light in photosynthesis

I think this because the plant may use up all of the carbon dioxide (Sodium hydro carbonate) and the plant can have as much light as it needs but if it does not have any carbon dioxide it will not be able to photosynthesise....

Introduction Photosynthesis is the conversion of light energy ..

The existence of light is esational
for this process, as the following equation shows:


[IMAGE]Carbon Dioxide + Water Glucose + Oxygen


The role of light within photosynthesis is too absorbed by

Investigating the light dependent reaction in photosynthesis

Another medical application for photochemistry is the use of photodynamic therapy to fight cancer. A highly coloured compound with a particular photochemistry is injected directly into a tumour. This compound preferentially adsorbs to cancer cells rather than to normal cells and, when irradiated with light from a laser or other source, forms excited-state molecules that react with oxygen to generate chemicals that are lethal to cancer cells.

The Effect of Light on Photosynthesis :: Papers

Therefore the closer the light source is to the plant,
the greater will be the intensity of the light and so the chlorophyll
within the plant will be able to photosynthesise at a faster rate.

Why does white light affect the rate of photosynthesis more?

Another real problem for the future is the need for a clean transportable fuel. Hydrogen can be generated indirectly from solar energy through the electrolysis of water, but this reaction is wasteful in energy terms. Thus, a great deal of research currently focuses on splitting water into hydrogen and oxygen directly using sunlight.

Light Reactions | Photosynthesis | Chlorophyll


I predicted that the smaller the distance between the plant and the
sauce of light, the greater would be the rate of photosynthesis.

Light Reactions: Role of Photosystems 4

Although that gameplay is instinctual, Photosynthesis is deep. It’s got a chess-like quality where, because of the sun’s rotation, players must think several moves ahead. In two brief play sessions, I was exposed to a variety of strategies ranging from fastidious sunlight conservation to the offensive approach of growing the tallest trees the quickest. The game invites experimentation with its easy-to-learn mechanics.

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