Worth 78 mark brainliest fully the staged involved in aerobic respiration. include the journey of the reactants and products of respiration. link this to the importance of a change in breathing rates during exercise . worth 78 !

Aerobic respiration is a biological process that takes energy from glucose and other organic compounds to create a molecule called Adenosine TriPhosphate (ATP). ATP is then used as energy by nearly every cell in the body -- the largest user being the muscular system. Aerobic respiration has four stages: Glycolysis, formation of acetyl coenzyme A, the citric acid cycle, and the electron transport chain.

The first step of aerobic respiration is glycolysis. This step takes place within the cytosol of the cell, and is actually anaerobic, meaning it does not need oxygen. During glycolysis, which means breakdown of glucose, glucose is separated into two ATP and two NADH molecules, which are used later in the process of aerobic respiration.

The next step in aerobic respiration is the formation of acetyl coenzyme A. In this step, pyruvate is brought into the mitochondria to be oxidized, creating a 2-carbonacetyl group. This 2-carbon acetyl group then binds with coenzyme A, forming acetyl coenzyme A. The acetyl coenzyme A is then brought back into the mitochondria for use in the next step.

The third step of aerobic respiration is called the citric acid cycle -- it is also called the Krebs cycle. Here, oxaloacetate combines with the acetyl coenzyme A, creating citric acid -- the name of the cycle. Two turns of the citric acid cycle are required to break down the original acetyl coenzyme A from the single glucose molecule. These two cycles create an additional two ATP molecules, as well as six NADH and two FADH molecules.

The final step in aerobic respiration is the electron transport chain. In this phase, the NADH and FADH donate their electrons to make large amounts of ATP. One molecule of glucose creates a total of 34 ATP molecules.

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Question: explain fully the staged involved in aerobic respiration. Include the journey of the reactants and products of respiration, Link this to the importance of a change in breathing rates during exercise?

Aerobic respiration: Respiration using oxygen to break down food molecules is called aerobic respiration. Glucose is the molecules normally used to respiration- it is the main respiratory substrate. Glucose is oxidized to release it's energy. The word equation for aerobic respiration is:

glucose + oxygen → carbon dioxide + water + energy released  

You need to be able to recognize the chemical symbols:

C6H12O6 + 6O2 → 6CO2 + 6H2O + energy released

Respiration is a series of reactions, but this summarizes the overall process.

The first stages of respiration occur in the cytoplasm of cells, but most of the energy released is in the mitochondria.

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~A.W~ZoomZoom44

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