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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.

The word equation for photosynthesis is: Light [IMAGE]Carbon Dioxide + Water Glucose + Oxygen Chlorophyll Although most of the glucose produced is converted into insoluble starch for storage in the stem, leaves or roots, some is used immediately by the plant to provide via respiration....

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

Other students who did the same experiment had results that also supported that blue light was not responsible for the rate of photosynthesis. Experiments Warsh et al. 2001, Bahramzadeh et al. 2001, and Whorley and Weaver. 2002 all showed that red had much higher rates of photosynthesis than blue, but these experiments had fewer trials or shorter trials. Lots of other students also used white light as a controlled variable; this would have been a good thing to put into our experiment to give it some comparison.

"High Tech High Biotechnology." : Photosynthesis Lab Prep.

Considering that not all light energy is used for photosynthesis we propose an alternative hypothesis. In a previous experiment the pigment xanthophylls absorbed significant amounts of blue light. In new research it is found that this pigment could be an important component in a process called energy dissipation rather than photosynthesis. In order to not overwhelm the plant with photosynthesis and respiration, this photon energy goes to other functions or formations of the plant. Further research on the function of xanthophylls will need to be conducted in order to understand the processes of plant function.

Effect of different colors of light on the rate of photosynthesisThe effect of different lights on plant growth: incandescent light, fluorescent light, sunlight and black light.

what factors affect the rate of photosynthesis?

They found that elevated CO2 increased rates of net photosynthesis in about 85% of the reported studies, while reducing stomatal conductances and rates of transpiration in approximately 75% of the cases analyzed....

In a series of experiments over as many as 77 days, Woodward measured the water consumed by plants.

For example, one plant showed a mass gain of about 1 gram, while Woodward had added a total of almost 76,000 grams of water during the 77 days of plant growth - this was a typical result.

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  • how does temperature affect the rate of photosynthesis?

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

  • Free rate of photosynthesis Essays and Papers - …

    The rate of photosynthesis was recorded at a range of light Intensities and conditions.

  • Free rate of photosynthesis papers, essays, and research papers.

    14CO2 is exposed for a brief period to a green plantthat is conducting a photosynthesis in the presence of sunlight.

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16/01/2018 · Elodea Photosynthesis Lab

Our results are contradictory with our hypothesis, based on our statistical results. There were several problems with our experiment that could have been taken into consideration. First, when taking respiration rates the foil wasn’t covering the chamber all the way letting some external light in. Second, the colored cellophane only allows approximately 70% of light through; this might have prevented the plant from absorbing the amount of light energy needed to have a significant photosynthetic rate. Third, the fast paced moving between trials lost time and efficiency. By having short trials (2.5 min.) we might not have allowed the plant enough time to adjust its photosynthetic rate to the different wavelengths of light energy. Plus by moving the plant, and switching from cellophane to foil (or vise versa), might have screwed up the photosynthetic cycle by exposing it to white light.

Measuring the rate of photosynthesis - Science and …

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....

methods of 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.

Lab: Exploring the Rate of Photosynthesis - The Biology …

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.

#41 Effect of Light intensity on the rate of Photosynthesis

In the first investigation, the disks placed in the bicarbonate solution had a considerably higher rate of photosynthesis than those placed solely in water, showing carbon dioxide's positive effects.

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