An experiment testing the wavelength and intensity of light on the rate of photosynthesis

What about what you have learned in lecture about light? Situated in the membrane of the thylakoid membrane is the electron transport chain. This is because different colours are determined by different wavelengths, and some wavelengths are shorter than others.

In order to test the light colour effect on the photosynthetic rate of the plant I decided to cover the ice cream container with coloured cellophane, I chose four colours Green, Red, Blue and purple. Their initial absorbances were recorded and following absorbances were recorded every 60 seconds for 6 minutes was exposed to the light.

They were than placed This tube was used as a blank for the spectrophotometer which was set to nm. Waterfowl, especially ducks, as well as beaver and muskrat eat this plant. Close the stopcock of the graduated tube when the level of water in the graduated tube falls to the level of water outside.

Finally, rate of increment of D. A written exam will be used to determine if a student has met the goals of the activity. However, there appears to be wide variance and adaptability among plants in their ability to tolerate temperature extremes. Prepare 4 photosynthetic experimental sets using Hydrilla plants in beakers in the usual manner.

Ice water, hot water, etc. What types of organisms undergo photosynthesis? Ignoring any anomalous data and repeat to compensate. It can even continue to grow unrooted, as floating fragments.

Check to see if the plant disks sink in the water. I repeated the experiment, but this time I decided to remove the watt lamp and instead of measuring the ph of water measure the number of bubbles on each plant everyday and on the fifth day the elodea segments were removed from the container, measured and recorded again to see the amount grown in length during the five-day period.

How ever the green light photosynthetic rate was lower than the red light photosynthetic rate. Where in a leaf does photosynthesis mainly occur? The quality, intensity and duration of exposure to light are some of the principal limiting factors of photosynthetic process in green plants.

On the other hand, an inhibitor is the compound that inhibits the flow of electron through electron carriers. As shown by this experiment, photosynthetic rate varies greatly depending on the different colours of light used. Discussion will include the ideas that not all plants photosynthesize at the same rate.

B Oxygen electrode assays for determination of Hill activity: For this experiment, DCPIP was added to cuvettes with spinach chloroplasts, which were exposed to an incandescent light at different distances for different intervals of time.

The stroma is a fluid substance comparable to cytosol in animal cells. As this is done, the oxygen is being removed from the spongy layer of the leaf and the. From this experiment, I can see that there is a significant variation in the effectiveness of different wavelengths of light upon photosynthetic rate.

This means that the amount of DCPIP in the chloroplasts decreased quicker as the intensity of light was higher, and that photosynthesis occurs more quickly or slowly depending on the intensity of the light.

One of the sets is used as control set, where the set is filled with 1, ml tap water. Even at high CO2 concentration, initially there is saturation effect followed by gradual decrease of photosynthesis. For individual wavelength of light, the photosynthesis rate varies.

Determinations of Dissolved Oxygen by Titrimetric Method: The change in carbon dioxide due to pondweed photosynthesising dissolved in the water effects the acidity of the water: Materials and Equipments Required: Labelling the tubes to stop contamination.

Showing that plants grow better under different colors of light will not answer this question anyway.

Experiments on Photosynthesis in Plants | Botany

Because of this, the plants from one store can be of a completely different species than the plant of the other store.Nov 07,  · Leaving Cert Biology Photosynthesis Experiment.

Effect of Light Intensity on the rate of Photosynthesis. Effect of a Varying Light Intensity on Rate of Photosynthesis-Updated -.

The effect of different wavelengths of light on photosynthesis rate in spinach leaves Abstract: This experiment was performed to test the effect of different wavelengths of light had on photosynthesis.

Introduction: The rate of photosynthesis varies greatly with changes in wavelengths of light. Light's colour is determined by its wavelength of light, and thus it is possible to devise an experiment to determine which wavelengths of light are most productive for photosynthesis than others.

The Effect of Light Intensity and Temperature on the Rate of Photosynthesis Aim The aim of my experiment is to determine whether intensity of light and temperature would affect the rate of photosynthesis in a plant. QUESTIONS: 1. Propose a reason the bicarbonate solution, rather than water, is used during the photosynthesis reaction 2.

Include a graph of your data from the light intensity experiment. Abstract: The purpose of the experiment was to determine the wavelength and light intensity effect on the reaction rate of photosynthesis.

How Light Intensity Affects the Rate of Photosynthesis – Biology IAA

Photosynthesis is the conversion of light energy to chemical energy in the form of organic compounds.

An experiment testing the wavelength and intensity of light on the rate of photosynthesis
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