what is respiration. explain and discuss it with detail
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9th
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By definition, respiration is a process in living organisms which involve the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.
Please note that breathing is not respiration. Breathing is simply intake and release of air. And respiration is the oxidative breakdown of complex organic substances like sugar etc. In respiration energy is released step-wise in the form of ATP (Adenosine Tri Phosphate). ATP is a.k.a currency of energy. Cellular respiration takes place in mitochondria. That's why mitochondria is also known as power house of the cell.
There are two types of respiration namely aerobic and anaerobic. Aerobic respiration takes place in the presence of oxygen while anaerobic respiration takes place in the absence of oxygen.
In aerobic respiration, first step is the breakdown of glucose (C6H12O6) to pyruvate (C3H4O3) in cytoplasm of the cell. And this process is called glycolysis. After then in mitochondria, breakdown of pyruvate takes place through Krebs Cycle or citric-acid cycle.
This whole process yields 38 ATP molecules. ATP is the condensed form of energy. Energy gets stored in the form of ATP. ATP=ADP+Pi. ADP means Adenosine Di Phosphate and Pi mean inorganic phosphate. Thus, 1 molecule of glucose gives 38 ATP molecules.
Various enzymes are required for aerobic respiration to take place.
Anaerobic respiration is the process of producing cellular energy without oxygen. Anaerobic respiration is a relatively fast reaction and produces 2 ATP, which is far fewer than aerobicrespiration.
Some examples of anaerobic respiration include alcohol fermentation, lactic acid fermentation and in decomposition of organic matter. The equation is: glucose + enzymes = carbon dioxide + ethanol / lactic acid.
The first step in both anaerobic and aerobic respiration is called glycolysis. This is the process of taking one glucose (sugar) molecule and breaking it down into pyruvate and energy (2 ATP). We will discuss this in depth during aerobic respiration. The second step in anaerobic respiration is called fermentation.
Please note that breathing is not respiration. Breathing is simply intake and release of air. And respiration is the oxidative breakdown of complex organic substances like sugar etc. In respiration energy is released step-wise in the form of ATP (Adenosine Tri Phosphate). ATP is a.k.a currency of energy. Cellular respiration takes place in mitochondria. That's why mitochondria is also known as power house of the cell.
There are two types of respiration namely aerobic and anaerobic. Aerobic respiration takes place in the presence of oxygen while anaerobic respiration takes place in the absence of oxygen.
In aerobic respiration, first step is the breakdown of glucose (C6H12O6) to pyruvate (C3H4O3) in cytoplasm of the cell. And this process is called glycolysis. After then in mitochondria, breakdown of pyruvate takes place through Krebs Cycle or citric-acid cycle.
This whole process yields 38 ATP molecules. ATP is the condensed form of energy. Energy gets stored in the form of ATP. ATP=ADP+Pi. ADP means Adenosine Di Phosphate and Pi mean inorganic phosphate. Thus, 1 molecule of glucose gives 38 ATP molecules.
Various enzymes are required for aerobic respiration to take place.
Anaerobic respiration is the process of producing cellular energy without oxygen. Anaerobic respiration is a relatively fast reaction and produces 2 ATP, which is far fewer than aerobicrespiration.
Some examples of anaerobic respiration include alcohol fermentation, lactic acid fermentation and in decomposition of organic matter. The equation is: glucose + enzymes = carbon dioxide + ethanol / lactic acid.
The first step in both anaerobic and aerobic respiration is called glycolysis. This is the process of taking one glucose (sugar) molecule and breaking it down into pyruvate and energy (2 ATP). We will discuss this in depth during aerobic respiration. The second step in anaerobic respiration is called fermentation.
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Respiration is a metabolic process common to all living things.
When you hear the word 'respire,' you probably think of breathing. When you breathe, you are taking in oxygen with each inhale and releasing carbon dioxide with each exhale. This gas exchange is important for respiration, but while breathing is a physical process, respiration can be thought of as more of a chemical process. All organisms, from a single bacterial cell to a coral reef colony to a blue whale, undergo respiration.
Food molecules absorbed after digestion are taken in, broken down, and the energy freed in the process is used to power the organism's movements and physiological functioning. Respiration is the biochemical process in which the cells of an organism obtain energy by combining oxygen and glucose, resulting in the release of carbon dioxide, water, and ATP (the currency of energy in cells).
When we examine the equation for cellular respiration, we see that the reactants are glucose and oxygen (for aerobic respiration), and the products are carbon dioxide, water, and ATP. Note the number of oxygen, carbon dioxide, and water molecules involved in each 'turn' of the process.
When you hear the word 'respire,' you probably think of breathing. When you breathe, you are taking in oxygen with each inhale and releasing carbon dioxide with each exhale. This gas exchange is important for respiration, but while breathing is a physical process, respiration can be thought of as more of a chemical process. All organisms, from a single bacterial cell to a coral reef colony to a blue whale, undergo respiration.
Food molecules absorbed after digestion are taken in, broken down, and the energy freed in the process is used to power the organism's movements and physiological functioning. Respiration is the biochemical process in which the cells of an organism obtain energy by combining oxygen and glucose, resulting in the release of carbon dioxide, water, and ATP (the currency of energy in cells).
When we examine the equation for cellular respiration, we see that the reactants are glucose and oxygen (for aerobic respiration), and the products are carbon dioxide, water, and ATP. Note the number of oxygen, carbon dioxide, and water molecules involved in each 'turn' of the process.
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