Whatis the effect of light intensity on photosynthesis rate?

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Lab: Exploring the Rate of Photosynthesis - The Biology …

Count bubbles of oxygen gas given off by elodea to determine the rate of photosynthesis.4.

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Free rate of photosynthesis Essays and Papers

In this activity, students investigate the rate of photosynthesis in an aquatic plant using an absolute pressure sensor and a light sensor while they:

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

Light is a very important factor in the rate of photosynthesis, in my project I am going to test that plants do need light in order to photosynthesise.

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

Photosynthesis need light to work, so light therefore should speed up 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.

It will be very interesting to see how light will influence the rate of photosynthesis in plants and what will happen if they do not get the required light in order to produce starch .

Lab 1 Measuring the rate of photosynthesis ..

How does this investigation demonstrate that plants give off oxygen during  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....

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....

How does the rate of photosynthesis change when sodium bicarbonate is added  to the water?
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  • Measuring the Rate of Photosynthesis Using a..

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

  • Spinach Photosynthesis Lab Report - Google Docs

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

  • Measuring the rate of photosynthesis (help me answer the …

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

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Investigating factors affecting the rate of 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.

Investigating factors affecting the rate of photosynthesis

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


In this exercise, students at different tables varied the intensity of light responsible for photosynthesis in the spinach disks by varying the wattage of the bulbs. Recall that these disks were submerged in a sodium bicarbonate solution and subjected to a vacuum. This resulted in the utilization of carbon from the sodium bicarbonate as their primary source of carbon for photosynthesis (as opposed to carbon dioxide). The reasoning behind this is that the sunken disks in solution will produce oxygen as a product of photosynthesis and float to the surface. We should be able to count the number of disks as a representation of the rate of photosynthesis occurring in each experimental setup.

Measuring the Rate of Photosynthesis

Red (610 - 700 nm) and blue (450 - 500 nm) wavelengths are most effective in promoting photosynthesis. Green (500 - 570 nm) light is least effective - it is not absorbed by plants but is reflected which is why green plants appear to be green. The conclusion: different wavelengths of light affect the photosynthetic process. Red and blue light support the highest rates of photosynthesis (although white light causes the most disks to float, remember that white is all wavelengths so it can be expected to result in the highest percentage).

Explain the variables that can influence rate of photosynthesis

Photosynthesis is the metabolic process that provides usableenergy for green plants by converting radiant energy from sunlight intochemical energy (in the forms of NADPH and ATP) and then using that chemicalenergy to reduce carbon dioxide to carbohydrates. The summary equation is:

Measuring the Rate of Photosynthesis Using a Spectrophotometer

The process of chromatography, which separates complex mixtures into their component parts based on their solubility in different kinds of solvents, can help identify some of the pigments used in photosynthesis.

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