The Effect Of Light Intensity And Light Wavelength On Photosynthesis

Have you ever really wondered how different variables can affect how plants go through photosynthesis? Well, in this experiment, the purpose was to see how various environmental conditions can affect the overall photosynthetic capacity of a specific plant. The factors, light, darkness, cold, and heat were applied to see how the different components would affect the photosynthesis on spinach plants. Each group was given a different factor to test. Out group was given the light factor. The hypothesis for this experiment is that when adding light as a factor, the light will affect the overall plant photosynthesis.

Plants can absorb a number of different length light waves, although not all of them are equal in power or energy which influences a plants growth. Approximately 80% of light that reaches a leaf is absorbed and depending on its wavelength, may excite chlorophyll pigments (reference text book). Plants absorb both red and purple light waves, however because purple wavelengths are shorter, they contain more energy.

Photosynthesis is the conversion of light energy to chemical energy into sugars. It is the process in plants that uses carbon dioxide, water, and sunlight from its surroundings and releases oxygen as a byproduct (6H2O+6CO2+light energy -> C6H12O6+6O2). Photosynthesis is required for plants because they are autotrophs, organisms that make their own food. Plants require a specific environment that is ideal to them to be able to carry out the process. Environmental conditions can either increase or decrease the rate of photosynthesis. Things like colors of light, pH, and temperature can all affect the rate of photosynthesis in plants.

The purpose of this lab is to observe the effect of white, green, and dark light on a photosynthetic plant using a volumeter and followed by the calculation of the net oxygen production using different wavelengths color of white and green light, and also the calculation of oxygen consumption under a dark environment, and finally the calculation of the gross oxygen production.

The purpose of this experiment was to investigate the effects of light intensity on the rate of photosynthesis in a Moneywort plant. By observing the plant in distilled water mixed with sodium bicarbonate, different light bulbs were targeted onto the plant. The measurement of the amount of bubbles present on the plant during the trial of the experiment enabled us to identify the comparisons between the activity of the light and the process of photosynthesis.

The process of photosynthesis, by which light energy is used to convert inorganic compounds into organic substances with the release of oxygen, may be the most important biological event sustaining life (Keir et al. 2017). In the light-dependent reactions, the chloroplasts of a plant use the pigment chlorophyll to convert light energy into chemical energy. This energy is used to split water and produce oxygen (Eller et al. 2015). The energy is later used in the light independent reactions, where carbon dioxide (CO2) undergoes carbon fixation with the aid of enzyme rubisco, because it catalyses both carboxylation and oxygenation reactions and most of responses of photosynthesis to light, CO2, and temperature (John Evans 2013).

Based on your data, draw a conclusion regarding how light intensity affects the rate of photosynthesis.

A bar graph representing how much photosynthesis three separate Elodea plants were able to perform under three different light treatments, normal, red and green light. The light treatments enhanced certain wavelengths of light which, due to the absorption spectrum of chlorophylls a and b and carotenoid pigments, altered the amount of photosynthesis a plant was able to perform in a certain amount of time. Each Elodea plant was subjected to a different light treatment, one to normal light, another to red and the third to green light while in a test tube of water for a total of two hours. Photosynthetic processes were observed by means of water displacement in the pipette attached to the test tube and were measured in millilitres. The mass of

Different colors absorb different wavelengths of light. Usually, the color that one sees is the reflection of the color of that object. Plants are green due to the pigment chlorophyll; consequently, green reflects off of the plant while other colors are absorbed.  In class, we wanted to support the fact that photosynthesis is guided by the wavelength of light absorbed. The basis of this experiment is that different wavelengths of light excite photons at different rates. Because of previous knowledge about how distinctive wavelengths of light affect the rate of photosynthesis, we decided to test the rate of photosynthesis when using red light, green light, and white light. We hypothesized that red light would have a faster rate of photosynthesis

However, the photosynthetic process can be affected by different environmental factors. In the following experiment, we tested the effects that the light intensity, light wavelength and pigment had on photosynthesis. The action spectrum of photosynthesis shows which wavelength of light is the most effective using only one line. The absorption spectrum plots how much light is absorbed at different wavelengths by one or more different pigment types. Organisms have different optimal functional ranges, so it is for our benefit to discover the conditions that this process works best. If the environmental conditions of light intensity, light wavelength and pigment type are changed, then the rate of photosynthesis will increase with average light intensity and under the wavelengths of white light which will correspond to the absorption spectrum of the pigments. The null hypothesis to this would be; if the environmental conditions light intensity, light wavelength and pigment type are changed, then the rate of photosynthesis will decrease with average light intensity and under the white light which will correspond to the absorption spectrum of the pigments.

In this lab, varying wavelengths were used to test how light affects photosynthesis and respiration as a whole. The absorbance of lights from 380 nm to 720 nm of chlorophyll pigment from the Elodea sample

Photosynthesis is a redox response, which obliges carbon dioxide, water and light to deliver water and a 6-carbon sugar. Amid this response H2O is oxidized and CO2 is lessened. The methodology of photosynthesis comprises of 2 sections; a light response and a light-free response. The strategy for changing light vitality into concoction vitality for the development of NADPH and ATP is done through the light responses. Light autonomous responses use carbon dioxide and the results of light responses (ATP and NADPH) to shape mixes, for example, glucose.

Without photosynthesis we would not be able to receive energy. We should be more appreciate of plants, without them we would not survive. This paper will explain the basic components require for photosynthesis, the role of chlorophyll, how energy is transferred, and photosystems I and II and the most precious product results of photosynthesis.

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. To do this, I will place a piece of pondweed in varying light intensities and temperatures, and observe the amount of oxygen being given off. I am using pondweed because of its unusual quality of giving off bubbles of gas from a cut end, when placed in water. Introduction Photosynthesis occurs only in the presence of light, and takes place in the chloroplasts of green plant cells.

It is important to understand the effects of photorespiration under different light intensities because it allows us to determine the best plants to use for ozone remediation and trapping of carbon dioxide. It is also important to determine these specific light intensities because it mimics different parts of the world and the levels of sunlight that are available there. “Growth of autotrophic plants is directly and dramatically influenced by the intensity of light — the driving force of photosynthesis — which provides nearly all of the carbon and chemical energy needed for plant growth. Moreover, light intensity (quantum flux density) is perhaps the