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Effect of different colors of light on the rate of photosynthesis.

In this experiment I will investigate how sodium hydrogen carbonate affects the rate of photosynthesis.

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Effects of different colors of light on the photosynthesis rate.

Background information: Photosynthesis Photosynthesis is the process of autotrophs turning carbon dioxide and water into carbohydrates and oxygen, using light energy from sunlight.

In practice, any one of these factors could limit the rate of photosynthesis.

Prediction : I predict that as I increase the distance between the light source and the Canadian Pondweed (reducing the light intensity), the volume of oxygen produced within the time limit (the measure of the rate of photosynthesis) will decrease.

Free rate of photosynthesis Essays and Papers - …

In this experiment we were told that we would be measuring the rate of photosynthesis.

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.

I can say that the
increase in distance thus making the light intensity stronger
increased the rate of photosynthesis and when further away made the
rate of photosynthesis almost come to its limiting factor the
straitening of the graph.

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

The colour of the lamp will stay the
same (yellow) as to plants Chlorophyll easily absorbs blue light,
however it does not easily absorb green or yellow light, rather it
reflects it, this decrease's the rate of photosynthesis.

A) sunlight concentration B) temperature C) chlorophyll concentration D) carbon dioxide availability Effects of the variables and there concentrations: The amount of sunlight will decide the rate of photosynthesis as there will be a an increased rate of photosynthesis due to the increased availability of photons of light....

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  • Low light intensity lowers the rate of photosynthesis

    If it gets too cold, the rate of photosynthesis will decrease. Plants cannot photosynthesise if it gets too hot.

  • Free rate of photosynthesis Essays and Papers - 123HelpMe

    I am trying to find out if the distance of the pond-weed from a lamp will change the rate of photosynthesis.

  • Why did the rate of photosynthesis decrease? | Yahoo …

    Hypothesis: The rate of photosynthesis in the water plant hydrilla will change as the rate of carbon dioxide changes.

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# 43 Effect of Carbon Dioxide on the Rate of Photosynthesis


Distance (cm)

Number of bubbles counted (every two minutes)























My graph shows that the closer the distances of the light source the
higher the rate of photosynthesis.

Factors Affecting Rate of Photosynthesis - Study Page

This can be seen on the graph
as the highest point this is where the Elodea is photosynthesizing at
a high rate and it starts to slowly drop as the distance is

Factors Affecting Rate of Photosynthesis ..

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....

dioxide can increase the rate of photosynthesis

My graph has no anomalies, and it closely followed to what I had
predicted that the closer the distance of the light the higher the
rate of photosynthesis would be and thus produce more bubbles in the
time recorded.

BBC - GCSE Bitesize: Factors limiting photosynthesis

The Effects of Elevated Carbon Dioxide Levels on the Transpiratoin Rates of Zonal Geranium PlantsHow Does the Introduction of NaF Affect the Rate of Photosynthesis in Isolated Chloroplasts?

News - Can Scientists Improve Photosynthesis?

I will measure the rate of photosynthesis by counting the number of bubbles that are released by the stem of the pond-weed when the lamp is shone on it from different distances.

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