Stands for Movement Respiration Sensitivity Growth Reproduction Excretion

Nutrition these are the seven characteristics of life. If something does not have at least one of the MRS GREN Characteristics, it cannot be classified as living. Although all things living, do look different to each other even if they are the same species, there are seven things that all living things do. These seven things are called Life Processes. Cellular Respiration Cellular Respiration: is the process in which your muscles use oxygen to make ATP energy. The process is simple.

Your body receives oxygen from the air you breathe. It gets into your bloodstream through your red blood cells and is carried to your muscles, where some of it is used up immediately, and the rest is stored by something called myoglobin. Whether you’re exercising or not, the oxygen in your body is used to break down glucose and generate the fuel for your muscles called ATP. During exercise, your muscles must work harder, which raises their demand for oxygen.

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Hence, your breathing and your heart rate increases.

To help pull more oxygen into your bloodstream. As you exercise, the oxygen that gets to your muscles never leaves, but rather turns the available glucose into ATP. So, what happens if your body runs out of oxygen or if your other systems just can’t deliver it to your muscles fast enough? Your muscles begin converting glucose into lactic acid instead of energy, then anaerobic takes over, energy output drops and fatigue sets in. Unfortunately, anaerobic exercise can only provide temporary energy before your muscles completely run out of energy and become fatigued.

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FUN FACT https://www.shutterstock.com/image-vector/cellular-respiration-photosynthesis-vector-diagram-753253606 Aerobic respiration is something that happens in the Mitochondria. Aerobic respiration requires oxygen and glucose, as well as carbon dioxide and water. In Aerobic Respiration, the sugar glucose is reacted with oxygen gas, this produces carbon dioxide and water and it releases energy. Aerobic respiration releases a lot of energy because the glucose molecule has been fully oxidized.

Aerobic respiration uses oxygen and glucose to make its energy. Glucose is created with the food we eat, after this food is digested the blood will then transport this Glucose to our cells for Respiration. The blood also will deliver Oxygen to our cells for respiration. The Glucose and the Oxygen will then react together and produce Carbon Dioxide water and Energy. This reaction will take place in the Mitochondria which is where respiration takes place. The Scientific equation for aerobic Respiration is: Glucose + Oxygen -> Carbon Dioxide + Water + Energy ^ ^ ^ ^ ^ C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy Mitochondria Our bodies need energy, to move to eat and to breath, the chemical energy of the human is produced in a part of the cell called the Mitochondria. Mitochondria convert the food you eat in the form of organic molecules, into chemical energy that can be used by the cell called ATP.

ATP is the fuel of the human body, the process of converting organic nutrients that you eat into ATP is called cellular respiration. As the agents that create energy for you, Mitochondria are extremely important to the functioning of the human body. Cells that require more energy contain more Mitochondria. Muscle cells use a lot of ATP from muscle contraction, in order to produce the amount of ATP that is required, there are more Mitochondria found in muscle cells. Inside Mitochondria there are two membranes; the outer membrane and the inner membrane double membrane structure of Mitochondria is very important for cellular respiration because it allows Mitochondria to sort molecules that it uses for chemical processes. When you breathe, you’re bringing oxygen into your body that mitochondria use in cellular respiration. Anaerobic Respiration C6H12O6 = 2C2H5OH + 2CO2 + 2ATP. Glucose = (Ethanol or lactic acid) + Carbon Dioxide + Energy Muscle cells need a lot of energy for contraction. Under certain conditions or circumstances, the amount of oxygen is limited. When there is a shortage of oxygen, muscle cells respire anaerobically. During anaerobic respiration in muscles, glucose gets converted into lactic acid. The difference between Anaerobic and Aerobic respiration is that Anaerobic respiration does not require any oxygen. Anaerobic respiration releases much less energy than aerobic respiration, this is because in anaerobic respiration the oxidation of the glucose is incomplete.

The Equation for Anaerobic respiration is Oxygen Debt After strenuous exercise, the body must now remove the lactic acid from the muscles, this creates a condition called the oxygen debt. The lactic acid now gets taken out of the muscles by the blood, this lactic acid is then taken to the liver where it is converted back into glucose by a series of chemical reactions. Removing the built-up lactic acid from the cells requires oxygen. So, the oxygen debt is basically the amount of Extra Oxygen the body needs after exercise, to remove the built-up lactic acid. That’s why we are always breathing heavily for a while after a sprint or some other form of strenuous exercise. Example If you did a 100m sprint on athletics day, you would notice that after you finish the race, you are taking larger deeper breaths, and sweating. The reason for this is; when you are doing something that requires a lot of energy like a sprint, your body goes into the aerobic mode, your muscles will begin to work harder, as a result of this the demand for oxygen increases, this will cause your breathing to rate and heart rate to increase to take in more oxygen and take pump it to the muscles faster. Circulation The human body has a double circulatory system.

After circulating through your body the de-oxygenated blood (Blue blood) enters the right side of your heart composed of your left side atrium and ventricle and is pumped from the heart through the pulmonary arteries to the lungs where oxygen is collected, the lungs refresh the blood with a new supply of oxygen making it turn red. The now oxygenated blood (red blood) then enters the left side of the heart composed of the left side atrium and ventricle and gets pumped through the aorta through the body to supply the tissue with oxygen. There are 4 valves within your heart that keep blood moving the right way, The Tricuspid Valve, Mitral valve, Pulmonary valve and Aortic valve. These valves work like gates on a fence, they open only one way and only when pushed open. Each valve opens and closes about once every heartbeat.

Beating heart contracts and relaxes, contraction is called Systole and relaxing is called Diastole. During Systole your right and left ventricles contract, forcing blood into the vessels that are going to your lungs and body. Your left and right ventricles now will then relax during diastole and are filled with blood coming from the left and right atrium above, the cycle then repeats itself over and over again. The heart is also nourished by blood vessels called “Coronary Arteries”. Your heart also has electrical wiring that keeps it beating, electrical impulses begin high in the right atrium and travel through specialized pathways to the ventricles telling it to pump. This is what keeps your heart beating in a coordinated and normal rhythm. This continuous exchange of deoxygenated blood (blue blood) and oxygenated blood (red blood) is what keeps us alive.

Updated: Dec 20, 2021
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Stands for Movement Respiration Sensitivity Growth Reproduction Excretion. (2021, Dec 20). Retrieved from https://studymoose.com/stands-for-movement-respiration-sensitivity-growth-reproduction-excretion-essay

Stands for Movement Respiration Sensitivity Growth Reproduction Excretion essay
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