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Aerobic Cellular Respiration: Stages, Equation & …

In the presence of oxygen, glycolysis is the first stage of cellular respiration.

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how does photosynthesis and aerobic respiration relate …

The process can be explained by the following equation.



Electron Transport Chain
This step of aerobic respiration is responsible for the conversion of more ADP molecules into ATP molecules.

Relationship between Photosynthesis and Cellular Respiration

In the following steps glycolysis process takes place in the cytoplasm of the cell whereas Krebs cycle and electron transport chain process are completed in the mitochondria of the cell.

Glycolysis
First step of aerobic respiration is glycolysis.

How are cellular respiration and photosynthesis related, ..

Regular cellular respiration is aerobic (requires oxygen), but some simple organisms can only do anaerobic cellular respiration.

Prokaryotes have their energy generation organ on the cell membrane and in eukaryotes, it is present in the inner membranes of the mitochondrial cell.

Aerobic cellular respiration equation shows the reaction between a glucose molecule and oxygen which results in the formation of carbon-dioxide, water and energy.

The equation can be represented as,



So, the aerobic respiration chemical equation will be



Aerobic respiration takes three steps to release energy and complete the process.

Describe the stages of cellular respiration and photosynthesis

The reaction taking place in electron transport chain can be summarized as follows.



These were the steps which are involved in the aerobic respiration equation.

Cellular Respiration
Cellular respiration is a series of metabolic processes which all living cells use to produce energy in the form of ATP. In cellular respiration, the cell breaks down glucose to produce large amounts of energy in the form of ATP. Cellular respiration can take two paths: aerobic respiration or anaerobic respiration. Aerobic respiration occurs when oxygen is available, whereas anaerobic respiration occurs when oxygen is not available. The two paths of cellular respiration share the glycolysis step. Aerobic respiration has three steps: glycolysis, Krebs cycle, and oxidative phosphorylation. During glycolysis, glucose is broken down into pyruvate and produces 2 ATP. The is also known as TCA cycle which contains a series of Redox reactions to convert pyruvate into CO2 and produce NADH and FADH2. During oxidative phosphorylation, NADH and FADH2 are used as substrate to generate a pH gradient on mitochondria membrane which is used to generate ATP via ATP synthase. Anaerobic respiration contains two steps: glycolysis and fermentation. Fermentation regenerates the reactants needed for glycolysis to run again. Fermentation converts pyruvate into ethanol or lactic acid, and in the process regenerates intermediates for glycolysis.

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  • Energy Transformation: Photosynthesis vs. Cellular Respiration

    The link between photosynthesis and cellular respiration is an inverse relationship, both are opposites of each other

  • Cellular Respiration Animation - Sumanas, Inc.

    Aerobic Respiration Equation

  • LabBench Activity Plant Pigments and Photosynthesis

    Aerobic cellular respiration equation shows the reaction between a glucose molecule and ..

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Cellular Respiration: Using Oxygen to Break Down Food …

Metabolism includes catabolism and anabolism. Anabolism is the synthesis of complex molecules from precursors, while catabolism is the breakdown of complex molecules into smaller precursors from which they are synthesized. All these pathways involve biochemical reactions. Free energy describes whether a reaction will occur spontaneously. In metabolism, reactions which are spontaneous are favorable because these run automatically and release free energy. Every reaction has an activation energy which can be lowered down by enzymes. Enzymes do this by bringing the reactants closer together. ATP is the energy currency of all cells. Most of the reactions in the cell require ATP. A non-spontaneous reaction can be coupled to ATP hydrolysis reaction to enable the overall reaction release free energy and therefore become favorable. ATP is generated by cellular respiration, which contains fermentation (anaerobic respiration) and the Krebs cycle (aerobic fermentation).

Oxygen discovery, atomic structure, and location information

Autotrophs and heterotrophs do cellular respiration to break down food to transfer the energy from food to ATP. The cells of animals, plants, and many bacteria use oxygen to help with the energy transfer during cellular respiration; in these cells, the type of cellular respiration that occurs is aerobic respiration (aerobic means “with air”).

RESPIRATION - Science Clarified

Perhaps a few hundred million years after the first mitochondrion appeared, as the oceanic oxygen content, at least on the surface, increased as a result of oxygenic photosynthesis, those complex cells learned to use oxygen instead of hydrogen. It is difficult to overstate the importance of learning to use oxygen in respiration, called . Before the appearance of aerobic respiration, life generated energy via and . Because oxygen , aerobic respiration generates, on average, about per cycle as fermentation and anaerobic respiration do (although some types of anaerobic respiration can get ). The suite of complex life on Earth today would not have been possible without the energy provided by oxygenic respiration. At minimum, nothing could have flown, and any animal life that might have evolved would have never left the oceans because the atmosphere would not have been breathable. With the advent of aerobic respiration, became possible, as it is several times as efficient as anaerobic respiration and fermentation (about 40% as compared to less than 10%). Today’s food chains of several levels would be constrained to about two in the absence of oxygen. Some scientists have and oxygen and respiration in eukaryote evolution. is controversial.

AP Biology Animations - Biology Junction

All animals, , use aerobic respiration today, and early animals (, which are called metazoans today) may have also used aerobic respiration. Before the rise of eukaryotes, the dominant life forms, bacteria and archaea, had many chemical pathways to generate energy as they farmed that potential electron energy from a myriad of substances, such as , and photosynthesizers got their donor electrons from hydrogen sulfide, hydrogen, , , and other chemicals. If there is potential energy in electron bonds, bacteria and archaea will often find ways to harvest it. Many archaean and bacterial species thrive in harsh environments that would quickly kill any complex life, and those hardy organisms are called . In harsh environments, those organisms can go dormant for millennia and , waiting for appropriate conditions (usually related to available energy). In some environments, it can .

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