Lab Report 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.

Duckweed is a small aquatic plant that is able to grow rapidly, making it the ideal specimen for our experiment. It is hypothesized that altering the amount of light received by duckweed will alter its photosynthetic rate. It is predicted that a lower light intensity will lower the rate of growth in duckweed.

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

Follow the steps detailed in the first experiment to test the effects of an increase in light intensity on photosynthetic rates in corn (a C4 plant).

Introduction Photosynthesis is the process through which plants use water and carbon dioxide to create their food, as well as to grow and release excess oxygen into the air. The purpose of photosynthesis is to convert water and carbon dioxide to glucose. Photosynthesis has two processes, each with multiple steps. The light reactions process splits water, releases oxygen, reduces the electron acceptor, and generates ATP from ADP.

We completed three experiments on the topic of photosynthesis. In the first experiment, we tested the "effect of light intensity" by "substituting NADPH with DPIP." DPIP starts out blue and changes to clear as it becomes reduced. Our hypothesis was the more intense the light is the faster photosynthetic process and the faster the rate of absorbency. Our null hypothesis was light has no effect on the rate of photosynthesis. The second experiment tested the effect of different colors, such as red, blue, green, white, and no light. Our

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.

Photosynthesis is a process that plans protistans and some bacteria, use energy from the sun to create sugar. Cellular respiration turns into ATP which is fuel used by all living things. The transformation of sunlight energy into chemical energy, also goes along with the same process as green pigment chlorophyll. The photosynthetic process mostly uses water and releases the oxygen that is mandatory for us humans must have to live.

The predicted hypothesis for this experiment was Ulva grown under low light will have a higher chlorophyll a content and a higher chlorophyll b content than Ulva grown under high light. The reason that this assumption was made is because Ulva that is growing in light limiting areas need to be able to harvest as much light as possible while the light is available. Chlorophyll a is able to absorb light in the red and blue spectrum while chlorophyll b is able to absorb light at intermediate wavelengths, as discussed in the introduction. The T-tests results that were calculated concluded to be: chlorophyll a (0.17), chlorophyll b (0.47) and the total chlorophyll (0.37). Since all three p-values are greater than 0.05, it can be concluded that there is no difference between the low and high light means, therefore the predicted (alternate) hypothesis can be rejected. In theory the experiment should have resulted as the alternative hypothesis predicted, but consequently errors have occurred that have prevents this outcome. All the class data was combined, therefore nine replications were conducted which would have eliminated human error, but unfortunately the Ulva used mightn’t have been grown under the high and low light conditions for long enough for the chlorophyll to adapt to the

Photosynthesis is the processes that captures energy from the sunlight to male sugars that store chemical energy. and cell respiration releases chemical energy from sugars and other carbon based molecules to make atp when oxygen is presented. and atp is the molecule that transfers energy from the breakdown of food molecules to cell processes. With all of these process they work together to capture energy by the sun and convert it into everyg of life. It starts with the photosynthesis. First, the carbon dioxide and oxygen will enter the leaves in plants through the stomata. then the water travels from the roots and will go into the vascular system. then chloroplast absorbs sunlight. However, there's 2 part in hopothesis. The parts re light dependant and light independent.

In order to investigate the effect of pH on the photosynthetic rate, a Spinacia oleracea chloroplast cocktail along side the redox indicator DCPIP, a visual aid for photosynthesis, were used as the apparatus of investigation. The hypothesis stated that if an acidic pH (5.0) was placed into the Spinacia oleracea cocktail, then the photosynthetic rate would decrease. In predictive terms, the DCPIP indicator will only display a minimal reduction of its blue color or it will display no reduction at

The lab consisted of testing photosynthesis in leaves from different conditions. All of the conditions include: xtreme light, dark, heat, and cold. The personal condition tested by my group, was darkness. The experiment was tested by two sets of 30 leaves in the exact same solutions of 0.2% NaHCO₃ and dish detergent. The process of making the solution and preparing the experiment required: mixing 300 mL of 0.2% NaHCO₃ with two drops of dish detergent, placing the solution into a syringe containing 35 leaf discs. The finishing touches required creating pressure within the syringe to ready the leaf discs. 30 of the discs were separated, equally, into three different dishes. It was most commonly thought, that the leaf fragments would have greater

Photosynthesis is a fundamental process that utilises light to produce energy. The energy is initially captured in the form of ATP and NADH in the Light Reaction. The Calvin Cycle then uses stored energy from ATP and NADH to produce energy in the form of sugar to store or to use. Water is split during the Light Reaction into its elemental forms, and oxygen and hydrogen are released as by products (Renger and Renger, 2008). To use free energy to bind oxygen to hydrogen to make water, the thylakoid membrane produces ATP using the electron transport chain. Photosynthesis produces oxygen and respiration uses oxygen. (Blankenship, 1992)

Photosynthesis is the process by which organisms that contain the pigment chlorophyll convert light energy into chemical energy which can be stored in the molecular bonds of organic molecules. Photosynthesis powers almost all trophic chains and food webs on the Earth.

Photosynthesis is the process where green plants use sunlight to produce water and carbon dioxide as the food and generates oxygen as a product.