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Conclution About Cellular Respiration
Conclution About Cellular Respiration
Conclution About Cellular Respiration
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Recommended: Conclution About Cellular Respiration
Cellular respiration is an important function for the body to obtain energy (Citovsky, Lecture 18). There are two types of cellular respiration; aerobic conditions and anaerobic conditions. Aerobic conditions are the cellular respiration occurred with oxygen while anaerobic conditions are cellular respiration occurred without oxygen. The most common cellular respiration is aerobic conditions where oxygen were supplied for phosphorylation (Campbell et al., pg 177). In human body, anaerobic conditions occurred when muscle cells are overworked and oxygen is depleted before it could be replenished (Citovsky, Lecture 19). This is a common phenomenon during exercise. The accumulation and production of lactic acid from anaerobic cellular respiration has been always a cause of muscle sore from intense exercise (Campbell et al., pg. 179). In cellular respiration, glucose with ADP and Phosphate group will be converted to pyruvate and ATP through glycolysis. NAD+ plays a major role in glycolysis and will be converted …show more content…
I agree with him that acetyl CoA is formed in aerobic respiration from pyruvate when the oxygen is present. However, he also mentioned that acetyl CoA is produced from Krebs Cycle which do not require oxygen. I agree with Moez, the Undergraduate TA that there is a contradiction of his statement on acetyl CoA. I believe that might be a typing mistake and he chose choice C acetyl CoA as the correct answer. In Adrian’s comment on real world application of anaerobic respiration, he mentioned that anaerobic respiration affects many processes such as assimilation of carbon dioxide to acetate. In addition to that, anaerobic respiration also affects processes in bacteria such as denitrification. When there is a limited supply of oxygen, bacteria synthesize energy through denitrification. Therefore, anaerobic respiration has a significant role on bacteria production of energy when oxygen is
gars. These are then split into two three-carbon sugar phosphates and then these are split into two pyruvate molecules. This results in four molecules of ATP being released. Therefore this process of respiration in cells makes more energy available for the cell to use by providing an initial two molecules of ATP.
Cellular respiration is a chemical reaction used to create energy for all cells. The chemical formula for cellular respiration is glucose(sugar)+Oxygen=Carbon Dioxide+Water+ATP(energy) or C6H12+6O2=6CO2+6H2O+ energy. So what it is is sugar and
In this lab, we explored the theory of maximal oxygen consumption. “Maximal oxygen uptake (VO2max) is defined as the highest rate at which oxygen can be taken up and utilized by the body during severe exercise” (Bassett and Howley, 2000). VO2max is measured in millimeters of O2 consumed per kilogram of body weight per min (ml/kg/min). It is commonly known as a good way to determine a subject’s cardio-respiratory endurance and aerobic fitness level. Two people whom are given the same aerobic task (can both be considered “fit”) however, the more fit individual can consume more oxygen to produce enough energy to sustain higher, intense work loads during exercise. The purpose of this lab experiment was performed to determine the VO2max results of a trained vs. an untrained participant to see who was more fit.
Do you know how you are able to run long distances or lift heavy things? One of the reasons is cellular respiration. Cellular respiration is how your body breaks down the food you’ve eaten into adenosine triphosphate also known as ATP. ATP is the bodies energy its in every cell in the human body. We don’t always need cellular respiration so it is sometimes anaerobic. For example, when we are sleeping or just watching television. When you are doing activities that are intense like lifting weights or running, your cellular respiration becomes aerobic which means you are also using more ATP. Cellular respiration is important in modern science because if we did not know about it, we wouldn’t know how we are able to make ATP when we are doing simple task like that are aerobic or anaerobic.
That is when muscles switch from aerobic respiration to lactic acid fermentation. Lactic acid fermentation is the process by which muscle cells deal with pyruvate during anaerobic respiration. Lactic acid fermentation is similar to glycolysis minus a specific step called the citric acid cycle. In lactic acid fermentation, the pyruvic acid from glycolysis is reduced to lactic acid by NADH, which is oxidized to NAD+. Lactic acid fermentation allows glycolysis to continue by ensuring that NADH is returned to its oxidized state (NAD+). When glycolysis is complete, two pyruvate molecules are left. Normally, those pyruvates would be changed and would enter the mitochondrion. Once in the mitochondrion, aerobic respiration would break them down further, releasing more
Anaerobic – Formation of ATP via the PC pathway and glycolysis that doesn’t involve the use of O2. (Exercise Physiology Theory and Application to Fitness and Performance by Scott K. Powers & Edward T. Howley pg 29)
After the athlete has used up their ATP energy system a molecule brakes off and eventually then taps into the lactic acid system. The 400m runner is predominately going to use the lactic acid system
Aerobic exercise involves improving the cardiovascular system. It increases the efficiency with which the body is able to utilize oxygen (Dintiman, Stone, Pennington, & Davis, 1984). In other words, aerobic exercise means that continuous and large amounts of oxygen are needed to get in order to generate the amount of energy needed to complete the workout. The most common type of aerobic exercise is long-distance running, or jogging. While running, the body requires large amounts of energy in order for the body to sustain energy. “During prolonged exercise, most of the energy is aerobic, derived from the oxidation of carbohydrates and fats” (Getchell, 1976).
Living things need energy to carried out their activities in daily life. Food is a very important source of energy but can be useless without the proper mechanism to convert it into energy. Basically, Krebs’ cycle describes the mechanism used to convert food into energy in a cell. First introduced by the German biochemist, Hans Krebs; the Krebs’ cycle is a process of converting food into energy in the form of adenosine triphosphate (ATP) in a cell through the oxidation of acetate which is obtained from food sources. The Krebs’ cycle is also known as tricarboxylic acid cycle or the citric acid cycle.
From my reading I learned that cellular respiration is a multi-step metabolic reaction type process that takes place in each living organism 's cell rather it be plant or animal. It’s my understanding that there are two types of cellular respiration, one called aerobic cellular respiration which required oxygen and anaerobic cellular respiration that does not require oxygen. In the anaerobic cellular respiration process, unlike the aerobic process oxygen is not required nor is it the last electron acceptor there by producing fewer ATP molecules and releasing byproducts of alcohol or lactic acid. The anaerobic cellular respiration process starts out exactly the same as anaerobic respiration, but stops part way through due to oxygen not being
The aerobic system produces far more ATP than either of the other energy systems but it produces the ATP much more slowly, therefore it cannot fuel intense exercise that demands the fast production of ATP.
One of the most important changes would be an alteration in the concentration of hydrogen ions in the blood, this could be caused by a rise in blood carbon dioxide or an increase in tissue respiration in the muscles during the exercise. The respiratory centre is in its self. sensitive to raised hCo2 and responds by increasing the rate and depth. of the breath of the mind. In the aortic arch and carotid bodies there are chemoreceptors.
Fermentation is an anaerobic process in which fuel molecules are broken down to create pyruvate and ATP molecules (Alberts, 1998). Both pyruvate and ATP are major energy sources used by the cell to do a variety of things. For example, ATP is used in cell division to divide the chromosomes (Alberts, 1998).
Yeasts are facultative anaerobes. They are able to metabolize the sugars in two different ways which is aerobic respiration in the presence of oxygen and anaerobic respiration in the absence of oxygen. The aerobic respiration also known as cellular respiration takes place when glucose is broken down in the present of oxygen to yield carbon dioxide, water and energy in the form of ATP. While in anaerobic respiration, fermentation takes place because it occurs in the absence of external electron acceptor. Because every oxidation has to be coupled to a reduction of compound derived from electron donor. On the other hand, in cellular respiration an exogenous
This function happens in two ways (aerobic respiration) or without oxygen (anaerobic respiration). This summary will focus on anaerobic respiration within prokaryotic cells. The first step to cellular respiration is glycolysis. Glycolysis breaks down glucose which then forms pyruvate and adenosine triphosphate (ATP) or energy. Unlike aerobic respiration, in anaerobic respiration the next step is for the cell to undergo fermentation. Fermentation occurs in 2 ways, ethanol fermentation and lactate fermentation, which are both necessary for the steps following fermentation to produce ATP or energy (Audesirk & Audesirk,