the gas exchange between the lungs and the blood. O2 diffuses into the blood and CO2 diffuses into the lungs for exhalation. 6. What is the difference between inhalation and exhalation? a. Inhalation refers to the intake of air in order to supply oxygen to bodily tissues. Exhalation refers to the expulsion of carbon dioxide from the body. 7. How is the cardiovascular system
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(H20) or oxygen (O2) to form silicon dioxide‚SiO2 on the silicon surface. The reaction is represented by following equations: Dry oxidation: Si + O2 → SiO2 Wet oxidation: Si + 2H2O → SiO2 + 2H2 The oxidation process can be implemented through diffusion of either water or an oxygen species through the oxide already formed up which then reacts with the silicon at the Si-SiO2 interface. At high temperature‚ thermal energy makes oxygen molecule
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training the body’s cardiovascular system as it trains the body to recover faster after being in the anaerobic state. The intensity of the training can cause adaptations to the body like capillarisation‚ strengthening of the heart muscles‚ improved oxygen uptake and improved flushing of lactic
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Whooshhh! Space exploration has many meanings to me. It means improved life on Planet Earth. It can help with saving energy‚ using our phones‚ and even predicting the weather! There are lots of meanings to space exploration and they all help us get through the day. Get Ready for lift off! We can rely on the weather reports updated on an hourly basis. The accurate weather forecast is possible only because of the satellites in the space. It’s easy to predict natural calamities such as floods‚ storms
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Deforestation Plants give us oxygen which is the most important thing for our survival. They undergo a process of photosynthesis in which they give out oxygen and take carbon dioxide. Plants consume the air‚ sunlight and the carbon dioxide we breathe out to make food and oxygen. So if trees are cut‚ plants will not produce oxygen and the concentration of carbon dioxide will increase. Increase of carbon dioxide in the air is harmful for human beings and also disturbs the water cycle and hence the
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Table 5.2. 6. The glass beads cannot produce gas‚ so it served as a control‚ due to no change in the volume of gas. 7. Germinating seeds have an increased metabolic rate‚ which in turn needs more oxygen. The non-germinating peas are smaller and barely alive‚ so they only need a little bit of oxygen to live. 8. See Graph 5.2. I think the graph will rise to a max peak of 40 C‚ where it’ll consume the most‚ then begin to decline as the heat increases past 50 C. 9. It was used to absorb excess CO2
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precipitating to the land‚ and running back to the ocean. Biosphere: includes all life on earth. 1.5 2. The Earth system is powered by the Sun and the Earth’s interior 1.6 2. Nitrogen and oxygen make up 99% of the volume of clean‚ dry air. Nitrogen: 78%‚ Oxygen: 21% 4. Ozone is a form of oxygen that combines three oxygen atoms into each molecule. Its presence of the ozone layer in our atmosphere is crucial because it absorbs the potentially harmful ultraviolet radiation from the Sun. 1.7 3. Ozone
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This essay will explain the function of the respiratory‚ digestive and cardiovascular systems and how they work together to produce nutrients and oxygen to the cells for cellular respiration (energy for the body) The first system in the body is the digestive system. When food enters the mouth the salivary glands secrete saliva which mixes with the food. This makes it easy to chew and swallow. Once the food has been chewed enough the food travels down the oesophagus to the stomach. Once the food
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rate of reactivity of the enzyme catalase on hydrogen peroxide while subject to different concentrations of an inhibitor. The hypothesis was that hydrogen peroxide will be broken down by catalase into hydrogen and oxygen‚ where a higher concentration of inhibitor will yield less oxygen‚ resultant of a lower rate of reaction. Crushed potato samples of equal weight were placed in hydrogen peroxide solutions of various temperatures. The results showed that less gas was produced as the concentration
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peroxide. I will investigate the effect of altering the mass of catalyst used on the rate of the decomposition of Hydrogen peroxide. Introduction- The decomposition of Hydrogen peroxide is a process by which Hydrogen peroxide decomposes into water and Oxygen. It has the following equation: 2H2O2 (l) ----> 2H2O (l) + O2 (g) This reaction does occur spontaneously at room temperature with the presence of Ultraviolet light; however only very slowly. It occurs far faster when a catalyst is used. Catalysts
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