Cellular Respiration : Energy From Food Sources

Cellular Respiration is the physiological process of converting molecules into ATP. This process can occur in bacteria, protists, fungi, plants, and animals. It uses Oxygen (02) and Glucose (C6H1206) to transfer and transform electrons. Then it produces carbon dioxide (CO2) and Water (H2O). Thus, it is read as C6H12O6 + 6O2 --> 6H2O + 6CO2 + 32ATP. Respiration is split into three steps Glycolysis, Citric Acid Cycle, and Electron Transfer Chain (ETC).

In cellular respiration, glucose and oxygen are taken into the cells, then they are converted to carbon dioxide, water and ATP energy and some other energy. Some of the ATP energy is used in photosynthesis; a large amount of

Cellular respiration is the chemical process in which organic molecules, such as sugars, are broken down in the cell to produce utilizable energy in the form of ATP. ATP is the chemical used by all of the energy-consuming metabolic activities of the cell. In order to extract energy from these organic molecules, cellular respiration involves a network of metabolic pathways dedicated to this task.

Cellular respiration is a redox reaction that combines glucose & oxygen to produce carbon dioxide, water, and energy.

Cellular respiration is the process by which cells get their energy in the form of ATP. There are two types of cellular respiration, aerobic and anaerobic. Aerobic respiration is more efficient and can be used in the presence of oxygen. Aerobic respiration, or cell respiration using oxygen, uses the end product of glycolysis in the TCA cycle to produce more energy currency in the form of ATP than can be obtained from an anaerobic pathway.

In cellular respiration, the oxidation of glucose is carried out in a controlled series of reactions. At each step or reaction in the sequence, a small amount of the total energy is released. Some of this energy is lost as heat. The rest is converted to other forms that can be used by the cell to drive or fuel coupled endergonic reactions or to make ATP.

Introduction: Cellular respiration and fermentation are used in cells to generate ATP. All cells in a living organism require energy or ATP to perform cellular tasks (Urry, Lisa A., et al. , pg. 162). Since energy can not be created (The first law of thermodynamics) just transformed, the cell must get its energy from an outside source (Urry, Lisa A., et al. , pg.162). “Totality of an organism’s chemical reactions is called metabolism” (Urry, Lisa A., et al., pg. 142). Cells get this energy through metabolic pathways, or metabolism. As it says in Campbell biology, “Metabolic pathways that release stored energy by breaking down complex molecules are called catabolic pathways” (Urry, Lisa A., et al. pg.

To be able to carry on metabolic processes in the cell, cells need energy. The cells can obtain their energy in different ways but the most efficient way of harvesting stored food in the cell is through cellular respiration. Cellular respiration is a catabolic pathway, which breaks down large molecules to smaller molecules, produces an energy rich molecule known as ATP (Adenosine Triphosphate) and a waste product that is released as CO2.

Cellular respiration is a very important process that occurs in all living organisms. In this process, chemical energy is obtained by the organisms’ food source to be turned into ATP or adenosine triphosphate, a form of energy that is easily utilized by the organisms’ bodies to carry out certain bodily functions (Largen, 2008, p.41). The chemical formula for cellular respiration is C6H12O6+6O2+6H2O→6CO2+12H2O+energy. This simply means that, with the use of glucose, six molecules of oxygen, and six molecules of water, an output of six carbon dioxide molecules, twelve molecules of water, and energy (ATP) is produced (Khan, 2010). Glucose is especially important in this process, given that it acts as a fuel in cellular respiration. (Cellular Respiration: Introduction, n.d.). In the biosphere, there is also a vast

Cellular respiration is creating ATP from ADP and a phosphate inorganic using the energy which was released from breaking apart glucose. The equation that summarizes this process is (ADP + Pi) + C6H12O6 +6O2 → 6H2O + 6CO2 + heat + (ATP). ATP is made up of a sugar ribose, 3 phosphate groups, and adenine. ATP is the energy used to complete processes in the body. ATP also has a very high potential energy because of its phosphate groups. Potential energy has to do with energy due to location. For example, a person on a diving board has a higher potential energy than a person already in the water. This is because the girl on the diving board has more potential to fall or convert the potential energy into kinetic energy by using her location to power her fall. The ATP has higher potential energy because its phosphate groups have oxygen ions. The negatively charged oxygen ions repel each other and do not want to be near to one another. Because of this, if the third phosphate group was to break off of the ATP molecule, an amount of energy would be released, lowering the potential energy. This is why ATP has such a high energy and is used for so many processes. The ATP would become ADP with a phosphate group becoming inorganic and would release energy.

When cellular respiration is in process, hydrogen atoms are removed from glucose and transferred to oxygen atoms that form CO2 and H2O. A major process of cellular respiration is Glycolysis, which occurs in the cytoplasm just outside of the mitochondria. Glycolysis is the process by which glucose is broken down into two pyruvate molecules. Energy is used to release glucose, which gains 2 ATP. Oxidation follows which produces NADH. . (Mader, 2009)

Unlike photosynthesis, cellular respiration is an exergonic reaction where energy is released, rather than absorbed. This released energy is called ATP, the energy currency of the cell.

Every living thing needs cellular respiration to survive. Cellular respiration is the process that releases energy by breaking down glucose and other food molecules in the presence of oxygen. This process happens through three distinct operations which are glycolysis, the Krebs cycle, and the electron transport chain. Throughout these cycles, our bodies turn oxygen and glucose into carbon dioxide, water, and energy. Although this system seems simple enough, cellular respiration can not take place in just one step because all of the energy from glucose would be released at once, most of it being lost in the form of light and heat. All this plays a very important role in our lives and without it, organisms would cease to exist.

Cellular respiration is a process that happens in all living eukaryotic cells. What cellular respiration does is turn food often carbohydrates into energy for our bodies. Cellular respiration starts with a carbohydrates sugar called glucose. What it does is alter and break down the six carbon molecule glucose and altering it creating two three carbon molecules called pyruvic acids in an anaerobic process called glycolosis (Cellular respiration). What this process does is create two ATP molecules which are basically molecules which provide energy to run all cellular processes in our bodies (king). However, from here in the process can turn aerobic, meaning using oxygen if present or anaerobic meaning when oxygen is not present in a

    Cellular respiration is the group metabolic reactions that happen in the cell of living organism that creates adenosine triphosphate, ATP, from biochemical energy. The formula for cellular respiration is C6H12O6 +6O26CO2+6H2O+ATP.  This formula means glucose and oxygen are turned into water,carbon dioxide and adenosine triphosphate (ATP) energy through chemical reactions. Cellular respiration occurs in all cells which allows them to grow. Raphanus raphanistrum subsp. Sativus seed, also known as radish seed, undergo cellular respiration because they are not yet able to perform photosynthesis, which is how plants create their energy. Hymenoptera formicidae,commonly known as ants, undergo cellular respiration to produce the energy they need to live.