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  • What is the input/output of the Electron Transport Chain?
    What is the input/output of the Electron Transport Chain?
    A is the answer to this question. The electric transport chain will start with NADH+FADH2. The output will be 34 or 36 ATP. The electron transport chain is known to be important because this is the process that occurs during a redox reaction. What happens is that the carriers will provide not only electrons but also protons to electron carrier proteins. If this would not take place, certain processes will not be possible. There are different living organisms that would have to go through this process otherwise, this can become a problem in the long run. In most electron transport chains, the final acceptor is usually oxygen.

  • Which of the following shows the products of photosynthesis?
    Which of the following shows the products of photosynthesis?
    The correct answer to this question is A, oxygen and glucose. Photosynthesis is a process plants and organisms use. In this process, light energy is converted into chemical energy. This energy helps fuel the activities of the organism. Plants use this energy to product glucose and oxygen. The chemical reaction for photosynthesis is 6 C02 + 6 H20 + light -> C6 H12 O6 + 6 O2. In words, this reaction is carbon dioxide + water + light products glucose + oxygen. The reactions of photosynthesis occurs in light and dark stages and light isn't required for this process to occur.

  • Which of these occurs when air leaves the lungs?
    Which of these occurs when air leaves the lungs?
    People breathe every second without even knowing it. Breathing is an automatic reaction that takes place all the time. When someone breathes air into their lungs, it is important that carbon dioxide is released. Since the pressure is greater outside of the lungs that forced the diaphragm to relax and forces the carbon dioxide out of the person’s mouth. The diaphragm is an organ in the body that is located below the lungs. Once the diaphragm relaxes, the air can escape back up through pathways it came from. Sometimes, problems may occur. If someone is in water, they can’t take in air but they can release the air that is already in their lungs. The diaphragm still functions even though the person can’t breathe in air.

  • Which of the following does not affect the respiratory rate?
    Which of the following does not affect the respiratory rate?
    None of the above. All of these are involved in regulating respiratory rate. Let’s say you went out for a run. As you pump your legs, the muscles increase their activity at the cellular level, using up more oxygen and producing more CO2 as their metabolic activity speeds up. But at this point your lungs are still breathing at the normal rate,and CO2 quickly builds up in your bloodstream. This lowers the pH (dissolved CO2 makes the blood more acidic). Your brain gets a signal saying ‘pH is too low!’ and that signal is processed by the pons and medulla oblongata, which then sends another signal to the lungs. The signal directs them to increase the rate of breathing so that they can keep up with your muscles’ increased demand for oxygen and increased output of CO2.

  • Which of the following is a collection of air in the chest around the lungs, which may cause atelectasis?
    Which of the following is a collection of air in the chest around the lungs, which may cause atelectasis?
    Pneumothorax. From “pneumo-“ (air) and “thorax” (chest/torso). This potentially serious condition can prevent patients from getting enough oxygen in the bloodstream. Symptoms include chest pain and shortness of breath. This condition is also known as a “collapsed lung” because it causes the lung to shrink under the pressure of external air. A pulmonary embolism is a blockage of the pulmonary artery, often in the form of a blood clot that has traveled from elsewhere in the body. Pulmonary edema is a buildup of fluid (not air) inside the lungs (not outside). It’s similar to pneumothorax in that they can both present chest pains and shortness of breath, but the causes are very different. Finally, SARS is a viral infection that starts with flu-like symptoms. Fortunately, no new SARS infections have been reported since 2004.

  • Which of the following is a relatively new respiration disease cause by a virus that is very contagious and somethimes fatal?
    Which of the following is a relatively new respiration disease cause by a virus that is very contagious and somethimes fatal?
    SARS. SARS is a viral infection, it affects the respiratory system, highly contagious, and caused about 800 people to perish in 2002 and 2003. The last SARS case was reported in 2004, and since then the disease has not infected anyone. Sinusitis is inflammation of the sinuses, and it’s a symptom, not a disease. It can be caused by either viral or bacterial infections. Sinusitis is almost never fatal, except in very rare cases where a severe infection spreads to the brain, causing meningitis or other potentially life-threatening conditions.With antibiotics this is almost impossible. SIDA is the French acronym for AIDS, which is not a respiratory disease (though it is viral, contagious, and deadly). Tuberculosis is a tempting answer because it’s a contagious, potentially life-threatening respiratory disease. However, it’s caused by a bacterium, not a virus.

  • Which of the following is cause by cigarette smoking?
    Which of the following is cause by cigarette smoking?
    Lung cancer. Along with COPD, lung cancer is one of the main health risks from smoking, and smoking is the 1 cause of lung cancer. As many as 90% of lung cancer cases are associated with smoking. Roughly 10% of lifelong smokers will develop lung cancer in their lives, and these cases often prove fatal. Influenza is caused by a virus, not by smoking, but smokers do suffer from more severe flu symptoms than non-smokers. Legionnaire’s disease is a bacterial infection, and it’s also exacerbated (but not caused) by smoking. Pleurisy is an inflammation of the lung lining, which can be caused by a variety of bacterial or viral infections, as well as by chest wounds. Again, smoking is not the major cause.

  • Which of the following most often results when heart function declines and fluids fills spaces of the lungs?
    Which of the following most often results when heart function declines and fluids fills spaces of the lungs?
    Pulmonary edema. Pulmonary edema is the condition of having excess fluid in the lungs, so it’s a little misleading to say that pulmonary edema RESULTS from excess fluid filling the lungs – it IS excess fluid. This condition often results from congestive heart failure (CHF), which causes a gradual buildup of fluids that the heart cannot move strongly enough. But this is still the best answer. Pulmonary embolism is when a solid mass makes its way to the lungs, often a blood clot from elsewhere in the body that makes its way to the pulmonary blood vessels. TB is a bacterial infection not related to a decline in heart function. And pneumothorax is air in the chest cavity, often called a collapsed lung – it also isn’t related to fluid in the lungs.

  • Which of the following is not a form of pneumoconiosis?
    Which of the following is not a form of pneumoconiosis?
    Bronchitis is a dangerous ailment that affects the lungs. Coughing is a common system and determining factor in Bronchitis. Similar to Bronchitis is Pneumoconiosis. This disease affects the lungs as well but it is caused by bringing in dust into the lungs. This causes the lungs to become inflamed. The results of coughing can be seen in both diseases. There are certain causes to Pneumoconiosis which include Asbestosis. Breathing in asbestos can cause this disease. Usually this is not done intentionally. Working around asbestos that has been sprayed or included in the walls or structures can be ingested into the lungs without knowing. Anthracosis and Silicosis are also diseases that contribute to Pneumoconiosis. Silicosis is when a person inhales a certain type of silica dust which lead to the coughing and infected lungs.

  • What are the three main stages of cellular respiration?
    What are the three main stages of cellular respiration?
    Glycolysis, Tricarboxylic Acid Cycle and Oxidative Phosphorylation Glycolysis, the Krebs Cycle and Electron Transport ChainDid you get the answer incorrect? Hint - The first stage of cellular respiration sees the breakdown of glucose, the second stage sees pyruvic acid and NADH used to make ATP and stage 3 sees NADH and FADH2 oxidised forming an H+ electron. Also refer to the Cellular Respiration page on the website.

  • What are the three main stages of cellular respiration?
    What are the three main stages of cellular respiration?
    Glycolysis, Tricarboxylic Acid Cycle and Oxidative Phosphorylation Glycolysis, the Krebs Cycle and Electron Transport ChainDid you get the answer incorrect? Hint - The first stage of cellular respiration sees the breakdown of glucose, the second stage sees pyruvic acid and NADH used to make ATP and stage 3 sees NADH and FADH2 oxidised forming an H+ electron. Also refer to the Cellular Respiration page on the website.

  • What is the formula of Photosynthesis?
    What is the formula of Photosynthesis?
    6Co2+6H20 --> (light) C6H12o6+ 6O2

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