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Describe the role of energy in the human body

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´╗┐The role of energy in the body: In our body we need energy to circulate blood, lymph and tissue fluid throughout the blood. It is also necessary for breathing and taking in oxygen, making new cells for carrying out grown and repair, to transmit nerve impulses so that we can respond to changes in the environment to build different complex molecules such as enzymes and hormones form the simple molecules produced after digestion of food. Respiratory system is the process of breathing oxygen in and carbon dioxide out. This process is happened in our lungs. Anabolism is a building up of biochemical compounds or components and catabolism is the processes that break down molecules into smaller units and release energy. C6 H12 O6 + 6O2 6CO2 + 6H2O + 36 ATP Glucose + Oxygen Carbon dioxide + Water + Energy Respiratory system When we breathe air in from nasal passage and mouth it goes to the pharynx and then larynx which is also called a voice box because it contain the voice code. Epiglottis is open when we breath in and closed the larynx when eat food to prevent food and liquid from entering into the larynx. After the larynx it goes through trachea. Trachea has rings of cartilage which prevent it from collapsing. It is lined with layer of ciliated epithelium cells and goblet cells. ...read more.


And the right side of the atrium received deoxygenated blood through the veins and this blood passes into the right ventricle, which pumps into the pulmonary artery and back to the lungs in alveoli where diffusion take place and gas exchange took place. Oxygenated blood goes to tissue from lungs to the pulmonary vein and after that it goes to the left side of the heart, then to aorta and then renal artery, to the tissue. From the tissue the blood carry deoxygenated to the interior vena cava and then right side of the heart and pump through pulmonary artery to the lungs. This is how the circulatory keeps on happening in our body. How Circulatory and Respiratory system work together? Heart sends deoxygenated blood, which has come from the tissues returns to the right atrium of the heart via the vena cava. It passes into the right ventricle, and gets pumped to the lung through pulmonary artery. And oxygenated blood from the lungs returns to the left atrium of the heart. It passes into the left ventricle. From here, it is pumped to the body in the aorta and then to cell of the body. This is where the cardiovascular and respiratory system interacts. The respiratory and Cardio vascular system work together by supplying oxygen and removing carbon dioxide from the body. ...read more.


ATP/ mitochondria/cellular respiratory Cellular respiration means the chemical energy of "food" molecules is released and partially captured in the form of ATP. Carbohydrates, fats, and proteins can all be used as fuels in cellular respiration, but glucose is most commonly used as an example to examine the reactions and pathways involved. Cellular respiration also refers to the biochemical pathway by which cells release energy from the chemical bonds of food molecules and provide that energy for the essential processes of life. All living cells must carry out cellular respiration. It can be aerobic respiration in the presence of oxygen or anaerobic respiration. Prokaryotic cells carry out cellular respiration within the cytoplasm or on the inner surfaces of the cells. More emphasis here will be placed on eukaryotic cells where the mitochondria are the site of most of the reactions. The energy currency of these cells is ATP, and one way to view the outcome of cellular respiration is as a production process for ATP. Cellular respirations are divided into three parts they are: * Glycolysis: it is occurs in the cytosol. * The Krebs cycle takes place in the matrix of the mitochondria. * Oxidative phosphorylation via the electron transport chain is carried out on the inner mitochondrial membrane. This is the chemical equation balance of Aerobic respiration C6 H12 O6 + 6O2 6CO2 + 6H2O + 36 ATP Glucose + Oxygen Carbon dioxide + Water + Energy ...read more.

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