Does Light Intensity Affect The Rate Of Photosynthesis In Algae Beads?

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.

Photosynthesis is the process in which plants consumed inorganic materials like solar light, carbon dioxide and water and converted it to an organic molecule like sugar and an inorganic gas like oxygen. Light is one of the major elements influencing the rate of photosynthesis; direct light concentration affects the noncyclic pathway (light

The relationship between light, plant growth and photosynthesis is extremely important because if there is no light, photosynthesis will not take place however limiting the plants growth. Light can limit the whole reaction of photosynthesis if it’s not present no matter how the temperature and carbon dioxide is increased, photosynthesis will still not occur.

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.

-Measuring the pH of a solution (such as in the lab we had) could also help determine the rate of photosynthesis. You would need a much more specific pH meter, but generally, if pH goes down, the level of CO2 is higher, meaning more cellular respiration. Higher pH means there’s less CO2, so more photosynthesis.

Organisms that use the process of photosynthesis to create sugar to use for energy have a greater rate of photosynthesis when the intensity of the light source is the greatest. If light is far away from the leaves of a plant, for example, then it takes more time for the light to be absorbed and used in photosynthesis. When it takes more time for the light to reach the leaves, the rate of photosynthesis decreases. As the light intensity increases, I would expect the rate of photosynthesis to increase as well. Therefore, I would expect that when the Elodea is closest to the light bulb, the rate of photosynthesis would be the greatest. My hypothesis would be: If light intensity affects the rate of photosynthesis, and the rate of photosynthesis is measured using the amount of

If a red light is shown on the leaves, then the rate of photosynthesis will decrease. The experiment conducted shows that red light is not efficient for photosynthesis. When the discs were placed in front of the red light, the discs floated on a much slower pace than the discs in the white light. The hypothesis was correct; the discs floated much slower in the red light. This is probably because the red light appears much dimmer than the white light. Since the leaf needs light for photosynthesis, the light that is dimmer will work less efficiently.

There are three main factors that affect the rate of photosynthesis; temperature, carbon dioxide concentration and light intensity. Specifically, in order for a plant to photosynthesise at a sufficient rate, there must be enough light as a plant is unable to do this process if there is an inadequate amount. The more photons of light that hit the leaves results in a greater amount of chlorophyll molecules that are ionised and more ATP is produced. Therefore, by increasing the amount of light the plant is receiving there will be a greater amount of energy resulting in a faster rate of photosynthesis. However, if there is an insufficient amount of supply from other factors, then when there is too much light it can affect the rate of photosynthesis.

As a control for the effect of temperature, one of the samples was kept at room temperature which is 25° C (Tube 3). Since the experiment we conducted on September 23, 2010 during Biology Lab 101 was conducted at room temperature, we had baseline data for what the rate of photosynthesis at this temperature would be. We concluded that this data could be used as a control to compare the rates of photosynthesis in both our experimental tubes. This tube was housed in a water bath set to 25° C. Contents of this tube included 1 mL of DPID, 1 mL of the buffer solution, 3 mL of water, and 3 drops of chloroplasts.

I hypothesized that the amount of carbon dioxide will remain the same if there is no light as plants need light in order to photosynthesize. On the other hand, there will be a decrease in carbon dioxide when the bottle is in the light as as the leaf inside the bottle photosynthesize and convert the carbon dioxide into oxygen. My hypothesis that carbon dioxide will remain the same wen the bottle is in dark was proved incorrect as my data shows an increase of carbon dioxide, there was 910 ppm originally and by the 10th time there was 972 ppm disproving my claim that the level of carbon dioxide will stay the same. However, my claim that there will be a decrease in carbon dioxide when the bottle is in the light

If the plant was placed in red light with non-tinted windows, the plant will have the greatest growth rate due to the relationship between light and plant growth, this is demonstrated by exposing leaves to various colours of light. Light supplies the power to generate photosynthesis, - the food making process within leaves. The spectrum of light is most utilised by the leaf, limited to red, green and blue. Chlorophyll is most absorbed by the red, due to its specific wavelength process.

The goal of the experiment is to determine how the type of light affects the rate of photosynthesis. If the light source is changed from a white light bulb to a LED light bulb, it is predicted that the rate of photosynthesis will increase.

Cuvette #5 acted as the media blank, and all cuvettes were vortexed. A spectrophotometer was set at a wavelength of 560 nm and each cuvette was measured for absorbance, starting with the media blank as a “zero” for the data. To determine algal concentration of each tube, 25 microliters of algae and 25 microliters of Protoslo were placed in a 1.5 mL Eppendorf tube and vortexed. 10 microliters were pipetted onto a hemocytometer and observed under a microscope at a magnification of 10x for counting algae. From counts of each of the four corners of the grid, an average of the four counts was taken, multiplied by two, and multiplied by 10,000 to get algal cells per mL. A standard curve was created from the data using Microsoft Excel or an equivalent spreadsheet program, and a Linear Regression calculator was used to find the statistical p-value (WSU Biology Department Faculty, 2017).

FREAR AND BURRELL-ASSIMILATION OF HYPONITRITE-NITROGEN tion of pyridine nucleotides by spinach grana and coupled carbon dioxide fixation. Nature 167: 768769. 1951. 29. VISHNIAC, W. and OCHOA, S. Fixation of carbon dioxide coupled to the photochemical reduction of pyridine nucleotides bv chloroplast preparations. Jour. Biol. Chem. 195: 75-93. 1952. 30. ZBINOVSKY. V. and BURRIS. R. H. Metabolism of

There are many factors that affect photosynthesis such as light availability, carbon dioxide concentration and temperature. Light is a limiting factor as if there is not enough light available, the rate of photosynthesis will decrease. This is because without the light, the chlorophyll (not be created) will be unable to absorb energy from the sun, resulting in no food which is required for survival. Temperature plays an essential role in photosynthesis as well. As the temperature increases, so does the rate of photosynthesis. As it is a chemical reaction, an increase in temperature will cause enzymes and