Photosynthesis Essay

The article “ When Did Photosynthesis Emerge on Earth?” was written by the principal investigator of the Ames Research Center team of the NASA Astrobiology Institute, David Des Marais. His experience has led him to publish more than 160 technical articles and chapters on many research topics such as the biogeochemical carbon cycle and the early evolution of the Earth and its biosphere. In this particular article, Des Marais establishes that life dates back to 3800 years ago and that not only…

Plants grow when watered. In fact, plants grow when watered because it gets water, sunlight, and nutrients also known as photosynthesis . In addition plants use a process called photosynthesis. During this process called photosynthesis plants trap light energy with their leaves. Equally important plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose. They also grow when watered because the plants absorb nutrients dissolved in water. They absorb the water…

Conclusion : The purpose of this experiment is to measure the effect of light intensity on the rate of photosynthesis in leaf discs. In this experiment, leaf disc is used and the CO2 gas inside the leaf discs are expelled in the beginning of experiment. Then, leaf discs are immersed in 3% Sodium Hydrogen Carbonate Solution. To indicate that the photosynthesis has occured is when the leaf discs rise on the surface of solution. This means they had absorbed CO2 from Sodium Hydrogen…

between respiration and photosynthesis in plants is a constant one. During photosynthesis plants use light energy, often from the sun, combined with carbon dioxide and water to produce energy. The byproducts of this action are glucose and oxygen. Contrarily, respiration is the combination of glucose and oxygen to produce water and carbon dioxide (Lab: Understanding the scientific method, 2013). Generally speaking, the more light that is produced, the faster photosynthesis occurs. However,…

Reflective Journal 3- How Plants Tell Time After reviewing chapters six and seven in the Biology Life on Earth textbook while also considering the video titled How Plants Tell Time, it can be concluded that photosynthesis is the most important process on earth in regards to maintaining life. Photosynthesis is an endergonic reaction, meaning that the products involved in the process have more energy than the reactants (Anderson, 18). Because of this endergonic reaction, plants are able to store…

The purpose of this lab was to analyze the impact different concentrations of bicarbonate solution had on the rate of photosynthesis in spinach disks. We derived a hypothesis that stated if the concentration of bicarbonate solution increased, the rate of photosynthesis would escalate causing the disks to rise faster to the top of the syringe. When conducting the baseline experiment using a 0.2% bicarbonate solution, the spinach disks starting rising around the ninth or tenth minute. However we…

contribution of the function of photosynthesis. The thylakoid membrane is an essential structure to chloroplasts because it allows the process of light reactions to take place. Photosystem l, makes NADPH from chlorophyll and is responsible for the transfer of electrons with high energy levels to additional molecules. Whereas, photosystem II produces ATP with the usage of an electron from light. Moreover, the thylakoid space is beneficial for the function of photosynthesis due to the reason being…

balanced chemical equation for photosynthesis (no peeking!). Sunlight energy + 6H201 + 6C1O2 —> 6O2 + C6H12O6 5. Based on the simulation experiments, what factors can affect the rate of photosynthesis in a plant? The factors that affect the rate of photosynthesis are the amount of light, the color of the light, and the amount of carbon dioxide. 6. Compare and contrast the information gained from the experiment about the factors that affect the rate of photosynthesis with the information…

The effect on photosynthesis can be analyzed by monitoring in vivo chlorophyll fluorescence. This method is based on measuring the fluorescence of chlorophyll in dark-adapted plants and after saturating light pulses(Schreiber et al., 1986). This fluorescence is a very sensitive marker for the efficiency of photosynthesis and also responds to the changes in energy conversion at photosystem II reaction centers and is…

plant originally from Brazil. It is now available in temperate regions of every continent in the world, except Antarctica. It is used in varieties of experiments, but most importantly, photosynthesis. Although there are different species of Elodea plants, the Elodea genus is an excellent plant to use to test photosynthesis because it is a highly oxygenating plant. This means that one can observe the plant and tell that is photosynthesizing because bubbles form when oxygen is produced (Berkeley).…