As mammals our aerobic metabolic system requires oxygen for us to sustain life. The organ that transports oxygen from the environment into the body where it is needed‚ are the lungs. Oxygen is transported through cellular respiration from the lungs to tissues and organs. Between 2‚100 to 2‚400 gallons of air is breathed to fuel 2‚400 gallons of blood that is pumped into the heart. Respiration is controlled by the medulla oblongata‚ which deals with the autonomic function of breathing. This characteristic
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electrons. Question 7 of 20 The symbol 3CO2 represents one atom of oxygen and three atoms of carbon. three atoms of carbon and one molecule of oxygen. three molecules of carbon dioxide. one atom of carbon and three atoms of oxygen. 0 out of 5 The correct answer is: three molecules of carbon dioxide. Question 8 of 20 In water‚ hydrogen bonding occurs between the hydrogen and an oxygen atom in the same molecule. an oxygen atom in a different molecule. a hydrogen atom in a different molecule
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Another paleoproxy that I have found is speleothems‚ also known as cave rocks. Unlike glaciers and ice sheets that are exposed to erosion and weathering‚ speleothems are well preserved in caves. They contain climate data from thousands to millions of years ago and are dated by measuring how much uranium has decayed into thorium for each layer. For example‚ one of the world’s largest cave of speleothems is the Carlsbad Cavern in New Mexico‚ and it provides a record of precipitation for that general
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Most shotgun powder is mixed to have sufficient oxygen to burn well. This experiment explored the results of adding additional oxidizer to the shotgun powder and igniting the mixture. The theory is addition of even more oxygen would cause the burn rate to accelerate. KClO4 is an oxidizer‚ a compound that readily transfers oxygen atoms and releases these atoms when heated. KClO4 is used in many flash powder compositions due to its abundance of oxygen and relative stability (Kubota‚ 2002). Smokeless
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Practical Report: Background Information: Hydrogen peroxide (H2O2) is a combination of hydrogen and oxygen. In high concentrations‚ it can be unstable and even poisonous. In lower concentrations‚ such as the types found in many homes‚ it works well as a disinfectant and antiseptic.The reason behind foaming of Hydrogen peroxide is because blood and cells contain an enzyme called catalase. Since a cut or scrape contains both blood and damaged cells‚ there is lots of catalase floating around.When
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Core Module 1: The Chemical Earth Contextual Outline The Earth includes a clearly identifiable biosphere‚ lithosphere‚ hydrosphere and atmosphere. All of these are mixtures of thousands of substances and the use of this pool of resources requires the separation of useful substances. The processes of separation will be determined by the physical and chemical properties of the substances. In order to use the Earth’s resources effectively and efficiently‚ it is necessary to understand the properties
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cellular respiration. It showed that the rates of cellular respiration are greater in germinating peas than in non-germinating peas. The non-germinating peas consumed far less oxygen than the germinating peas. This is because‚ though germinating and non-germinating peas are both alive‚ germinating peas require a larger amount of oxygen to be consumed so that the seed will continue to grow and
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has stopped‚ what cellular processes and membrane functions are going to be affected by the loss of oxygen‚ blood glucose‚ and waste removal? A: Oxygen and blood glucose are essential ions that are necessary for the pumping of the heart. Their delivery to the heart will slow down. Carbon dioxide levels will increase -- this causes the Ph levels to drop. Mitochondria will no longer have oxygen and glocose‚ which is needed to make ATP. This causes cells to die. ff Assuming Joesph’s heart has
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Prehistoric Times - Beginning of the Christian Era (Black Magic) * 1700 BC King Hammurabi’s reign over Babylon In ancient Babylon King Hammmurabbi began to classify metals such as gold ‚ iron‚ and copper. He also gave certain materials higher value than others‚ depending on the potential of the material. Known metals were recorded and listed in conjunction with heavenly bodies. 430 BC Democritus of ancient Greece Democritus and the atom: c.420 BC In the late 5th century BC Democritus
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criteria Y/N Feedback (including action where necessary) P1 Describe the structure of hydrogen‚ carbon‚ oxygen and nitrogen and relate these to the structure of biological molecules P2 Describe the structure of water and carbon dioxide with reference to different types of bonding M1 Explain the relevance of the electronic configuration of hydrogen‚ carbon‚ oxygen and nitrogen to biological molecules Learner Declaration I declare that all the work submitted
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