Biology – Topic 5 – On the wild side. Photosynthesis Photosynthesis is the process where energy from light is used to break apart strong bonds in H20 molecules – hydrogen is combined with CO2 to form glucose, and O2 is released into the atmosphere. Photosynthesis occurs in a series of reactions, but the overall reaction is: 6CO2 + 6H20 + Energy → C6H12O6 + 6O2 The energy is stored in the glucose until the plants release it by respiration. Plant and animal cells release energy from glucose, this is called respiration. There are two types of respiration: Aerobic (using oxygen) and Anaerobic (no oxygen).
It is a polysaccharide that functions as a carbohydrate store and is an important part of the human diet used as an energy source. It is a polymer of glucose sugar which means it is composed of many glucose molecules linked in a chain. Plants store the starch instead of simple sugars. Cellulose is an insoluble substance which is the main part of plant cell walls and vegetable fibres such as cotton. It is also a polysaccharide consisting of chains of glucose monomers.
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.
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).
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.
It can be converted into starch, a storage molecule, that can be converted back to glucose when the plant requires it 3. It can be broken down during the process of respiration, releasing energy stored in the glucose molecules In aerobic respiration energy is produced when this reaction happens Oxygen + glucose Carbon dioxide + water + Energy C6H12O6 + 6O2 → 6CO2 + 6H2O + energy The energy released by respiration is used to make large molecules from smaller ones. In plants, for example, sugars, nitrates and other nutrients are converted into amino acids. Amino acids can then join together to make proteins. The energy is also used: * To allow muscles to contract in animals * To maintain a constant body temperature in birds and mammals Respiration and photosynthesis can be linked as the result product can be used as a reactant in the other equation, this means that plants can have a constant supply of energy this means they don’t die in the night.
Carbohydrate is the universal energy cell. Carbohydrate breakdown, glycogen serves as a source of glucose for your cells, your tissues, including your brain and muscles use glucose as a source of energy to support metabolic functioning. When your body requires glucose your liver and muscle breakdown their glycogen stores releasing glucose. Some glucose may be used directly in your liver and muscles while other glucose is released into your blood stream and used throughout body. Lipid break down, your body can breakdown triglycerides as a source of energy.
Photosynthesis and Cellular Respiration Abstract In order for plants to live, they must have an energy source. This energy source is achieved through two metabolic processes known as cellular respiration and photosynthesis. These two reactions can be affected by a series of environmental factors and in this lab pH levels are being experimented on in order to see the effects of pH on oxygen production in photosynthesis and oxygen consumption in cellular respiration. To conduct this experiment, an enclosed apparatus was used and a number of leaf disks were used to represent the reaction of photosynthesis and cellular respiration. Introduction All organisms and their individual cells need a source of energy and air supply in order to maintain life.
The veins in a leaf transport nutrients and water where they are needed and chloroplasts are in a plant’s mesophyll cells, which is where photosynthesis takes place. 6CO2 + 6H2O (+ light energy) C6H12O6 + 6O2 is the formula for the photosynthesis chemical reaction (Carter, 2013). There are actually two steps to the photosynthesis process: in order to convert energy into chemical, a reaction to light takes place within the thylakoid membrane. Beta-carotene, Chlorophyll and other various pigments that are vital to the light reaction are systematized into specific groups within the thylakoid membrane;
Light energy from the sun is converted into chemical energy in the form of glucose. Photosynthesis occurs in a series of reactions but the overall equation is: 6CO2 + 6H2O + energy C6H12O6 + 6O2. Energy is stored in the glucose until the plant releases it by respiration. Respiration is the process in which energy stored in glucose molecules is released in the form of ATP. Respiration complex process containing 4 reaction stages, but can be summarised as: C6H12O6 + 6O2 6CO2 + 6H2O + ATP.