Introduction Photosynthesis is one of the most important sections of biology and has always interested me. This process is affected by many aspects which drove me to question if one can identify the effect of high and low light intensity specifically from leaves on any plant. The structure, dimensions and pigments of a leaf should (theoretically) all be indicators of the type of light intensity environment the plant is situated in. Light intensity is one of the factors affecting the rate of photosynthesis. Other factors are concentration of carbon dioxide, temperature and to a lesser degree, water.
CAM plants use both of the C4 and Calvin cycle but they fix carbon dioxide at night. The process starts with the C4 pathway during the dark. Once to molecule malate is formed it stored in the vacuole as malic acid. Once light has come back the acid is broken down into RuBP. CAM plants only fix carbon at night to prevent water loss during the day.
Effect of carbon dioxide availability on photosynthetic rate of the leaves of Elodea Densa. Rosanth Anparasan1, Muhammad Ali Qazi1, Kyle Patel1, Sheldon Lui1, Hossein Bhorbani 1 1Dept. of Biological Sciences, University of Toronto Scarborough, Toronto, Canada UTSC BIOA01 Lab PRA20, BENCH5: PRA20 TA: Ashley Bramwell ________________________________________ Abstract: The process of photosynthesis is the most essential chemical processes that occurs on the planet. Most terrestrial organisms require oxygen to survive and much of the oxygen in the atmosphere is produced by photosynthesis. Plants are the organisms that carry out this chemical reaction and so it is crucial to understand what impacts this process in both terrestrial and aquatic environments.
Doriana Spurrell What different frequencies and types of light would prompt the Spinach leaves to go through the process of photosynthesis effectively? Purpose: The purpose of this experiment was to see which of the four lights that range across the light spectrum would properly and most efficiently help the spinach leaf perform photosynthesis. Background Information: Photosynthesis is the process in which plants use light energy to transform into chemical energy. The process of photosynthesis is vital for the survival of most life on Earth. Without photosynthesis plant life would be unable to create its own food and sustain themselves causing them to die.
Figure 2: Structure of a leaf (FTEXPLORING, 2014), Accessed 16 March 2018) Chlorophyll is an essential need to photosynthesis as it is able to trap both blue and red light. It is a complex molecule consisting of three sub types;
Coral reef ecosystems depend a lot on light attenuation because that is how they grow and survive. Different reef ecosystems vary depending on how deep because of the amount of light that is traveling through the water column. The linear regression on Figures 1 and 2 determined the diffuse attenuation coefficient for downwelling plane irradiance (Kd) which is the exponent of the equation on figure 1. The Kd value found using the light data from the experiment was 0.281 1/m. This value is in the normal range usually seen of 0.1-0.4, which means that light disappears faster with depth.
During the process, two molecules of ATP, and of pyruvic acid and 2 electron carrying molecules of NADH are created. It can also happen with or without oxygen. 2. The Krebs cycle - It starts when 2 molecules from the 3 carbon sugar made in glycolysis are created into a different compound. It is a central metabolic pathway with aerobic organisms that consists of a series of 9 reactions that ocur in mitochondrion.
Survival. Survival mechanism to get sun light needed for photosynthesis, which brings more energy to the plant. “Since plants must make their own food to survive (by changing light energy into chemical energy—a process called photosynthesis), the ability to capture as much of this light energy as possible is crucial to its survival, “(Science clarified, 2017, p.7). We humans when need something we move around and take what we need. Very unfortunate for plants.
Sandy Kim Period 4 IB Biology SL Effect of color lights on photosynthesis rate Personal Engagement I am interested in photosynthesis because before I have learnt about photosynthesis, I was wondering why most of leaves are green. Do not they have other colors like violet and yellow? It is important for me to investigate different colors of lights are affected by amount of photosynthesis because now I learn that chlorophyll, a main photosynthetic pigment, plays a vital role in a color that people observe. I want to find out which colors are the most effectively absorbed by chlorophyll. In order to prove it, elodea is needed because elodea is a typical plant to generate air bubbles, depending on light intensity and different foil sheets to
The second stage is when synthesis (Calvin Cycle) uses the energy from the light reaction and change CO2 taken from the atmosphere into sugar. The Calvin cycle uses ATP and NADPH to transform three molecules of CO2 to one molecule of a 3-carbon sugar.