What Factors Affect the Rate of Photosynthesis in Living Leaves?
What Factors Affect the Rate of Photosynthesis in living leaves?
Abstract:
In this lab, four different types of leaves were tested to see the rate at which each leaf photosynthesized. This lab demonstrates how plants store light, capture light, and use light as energy for reproduction and growth, by photosynthesis. The control in this experiment was spinach, which was tested before any of the other plants were. The other plants that were tested were English Ivy, C4 Plant, and a multicolored plant. Each type of leaf was tested in a sodium bicarbonate solution and a solution of distilled water. It will be shown in the discussion whether the hypothesis made was correct or incorrect. It will be shown in the discussion what could have occurred during the experiment that could have affected the results.
Introduction:
Photosynthesis can be defined as the process by which green plants, and other organisms make carbohydrates from carbon dioxide and water in the presence of chlorophyll, using energy captured from sunlight by chlorophyll, and releasing excess oxygen. Like all enzyme-driven reactions, the rate at which photosynthesis occurs can be measured by the disappearance of a certain substrate, or the accumulation of product. Photosynthesis consists of light reactions and dark reactions. This process can be simplified by the equation:
6CO2 + 6H2O + Energy --> C6H12O6 + 6O2 Shown in this equation 6 molecules of carbon dioxide (6CO2) and 12 molecules of water (12H2O) being consumed in the process, and glucose (C6H12O6), six molecules of oxygen (6O2), and six molecules of water (6H2O) being produced. The energy source is photons (light) from the sun. The rate of photosynthesis could be measured by the amount of moles of O2 produced for one mole of sugar. The rate of photosynthesis could also be measured by the amount of moles of CO2 that are consumed for every mole of sugar that is synthesized.
Leaf disks float in water, most of the time. If air spaces are
Abstract:
In this lab, four different types of leaves were tested to see the rate at which each leaf photosynthesized. This lab demonstrates how plants store light, capture light, and use light as energy for reproduction and growth, by photosynthesis. The control in this experiment was spinach, which was tested before any of the other plants were. The other plants that were tested were English Ivy, C4 Plant, and a multicolored plant. Each type of leaf was tested in a sodium bicarbonate solution and a solution of distilled water. It will be shown in the discussion whether the hypothesis made was correct or incorrect. It will be shown in the discussion what could have occurred during the experiment that could have affected the results.
Introduction:
Photosynthesis can be defined as the process by which green plants, and other organisms make carbohydrates from carbon dioxide and water in the presence of chlorophyll, using energy captured from sunlight by chlorophyll, and releasing excess oxygen. Like all enzyme-driven reactions, the rate at which photosynthesis occurs can be measured by the disappearance of a certain substrate, or the accumulation of product. Photosynthesis consists of light reactions and dark reactions. This process can be simplified by the equation:
6CO2 + 6H2O + Energy --> C6H12O6 + 6O2 Shown in this equation 6 molecules of carbon dioxide (6CO2) and 12 molecules of water (12H2O) being consumed in the process, and glucose (C6H12O6), six molecules of oxygen (6O2), and six molecules of water (6H2O) being produced. The energy source is photons (light) from the sun. The rate of photosynthesis could be measured by the amount of moles of O2 produced for one mole of sugar. The rate of photosynthesis could also be measured by the amount of moles of CO2 that are consumed for every mole of sugar that is synthesized.
Leaf disks float in water, most of the time. If air spaces are
References: Cellular Processes: Energy and Communication lab packet. http://www.ncsu.edu/labwrite/Experimental%20Design/explabs_checklist.htm http://www.mathsisfun.com/data/standard-deviation.html