The light-dependent reaction consists of changing light energy to chemical energy for the formation of ATP and NADPH. The light-independent reaction use carbon dioxide and the products of ATP and NADPH from the light-dependent reaction to form glucose (Sadava et al. 2011). The purpose of this experiment is to determine the various ways the rate of photosynthesis is affected by the chloroplast under different treatments. The indictor DCPIP can determine the rate of photosynthesis.
The rate of carbon dioxide utilization 2. The rate of formation of organic compounds 3. The rate of oxygen production 4. Explain how the light and dark bottle method rate oxygen production is used to measure aquatic net productivity. The light and dark bottle method of rate oxygen is used to measure aquatic net productivity because the amount of light determines whether photosynthesis can occur.
It carries energy around the cell to where it’s needed. ATP is synthesised from ADP and inorganic phosphate (Pi) using energy from an energy-releasing reaction e.g the breakdown of glucose in respiration. The energy is stored as chemical energy in the phosphate bond, the enzyme ATP synthase catalyses this reaction. ATP diffuses to the part of the cell that needs energy. Here it’s broken down back into ADP and inorganic phosphate (Pi).
The process of photosynthesis is when plants use the energy in sunlight to convert water and carbon dioxide into oxygen and high-energy carbohydrates. Photosynthesis occurs inside a cell organelle called the chloroplast. The chloroplast contains green pigments called chlorophyll, which capture the energy in sunlight. The equation for photosynthesis is as follows: Light 6CO2 + 6H2O à C6H12O6 + 6O2 (Moran 2006) The raw materials needed for photosynthesis are carbon dioxide from the air (taken in through the leaves) and water, usually from the soil (taken in through the roots). The two combine initially to produce simple sugars and oxygen.
Light is absorbed by chlorophyll, and this causes electrons to jump to a higher electron level and create ATP. ATP and NADPH move to the stomata to take part of the Calvin cycle. During the Calvin cycle, CO2 molecules are turned into organic molecules. The photosynthesis equation is: 6CO2 + 6H2O + sunlight → C6H12O6 + 6 O2 In this experiment, we are going to use leaf disks to measure the net rate of photosynthesis under different light colors. The leaf disks float until their air bubbles are drawn out and replaced with the surrounding solution, causing their density to increase and the disk to sink.
Measuring the rate of photosynthesis at different levels of light intensity 1. Introduction Photosynthesis is the process by which green plants and some other organisms capture light energy from the sunlight to convert into usable chemical energy (carbohydrates).In simple words, photosynthesis uses light energy to make food, coverts water and carbon dioxide into sugars which provide plants with the chemical energy necessary for them to live and grow.  This process occurs in two main stages, the light dependent reactions and the light independent reactions, which release oxygen as a by-product. In photosynthesis, electrons from water are boosted uphill by the energy from sunlight; chloroplast uses these electrons along with carbon dioxide and hydrogen ions, to produce sugar molecules. In light dependent reaction, sunlight energy is converted to chemical energy, generating energy rich ATP and NADPH molecules.
How are these electron carriers reoxidized in anaerobic bacteria? How are these electron carriers reoxidized in aerobic bacteria? 3. (24 points) Aerobic eukaryotic organisms use the unique abilities of mitochondria to extract further energy from glucose (and other nutrients). a) The citric acid cycle completes the degradation of glucose.
10) What is an energy pyramid and what does it represent? 11) Be able to recognize the predominant elements of life and their relative abundance in the human body (major and minor components). 12) Know how Nutrient cycles interact with the rock cycle. 13) What are the abiotic (Biogeochemical) cycles (note the overlap with #11). 14) Know how to describe or draw the carbon cycle and the processes that drive
Then the calvin cycle, happens in the stroma. You take ATP and NADP and CO2 to make sugar. Photosynthesis is a process of taking in light and making sugar as we know glucose. Cellular Respiration is the process by which cells obtain energy from glucose. Cellular Respiration reaction is C6H12O6+6O2---6CO2+6H2O.
Light energy comes from the sun. The oxygen produced is released into the air from the leaves. The glucose produced can be turned into other substances, such as starch, which is used as a store of energy. This energy can be released by respiration. ** Note that photosynthesis is a reduction-oxidation reaction, just like respiration (see the primer on redox reactions from the lecture on Microbes).