Question

What are the two steps involved in respiration???​

Answer 1

Answer:

glycolisis and Krebs cycle and for extra information electron transport.

Explanation:

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Answer 2

Answer:

1. Glycolysis :

Glycolysis is one of the main processes involved in cellular respiration. Glycolysis is the pathway that converts sugar into energy, or glucose (C6H12O6) into pyruvate (CH3COCOO), generating ATP during the conversion. Glycolysis occurs in the cytosol of the cell: the cytosol is the fluid component of the cytoplasm, the area inside a cell's membrane which contains the organelles. Glycolysis does not need oxygen to occur; it is completely independent of molecular oxygen and can proceed without it. However the energy byproducts, ATP and NADH, do require oxygen to be utilized. Glycolysis is unique because it is completely anaerobic - meaning it doesn't require oxygen and will proceed with or without it. Unlike the next steps in cellular respiration, which absolutely require oxygen to occur.

2. Krebs Cycle:  is the second of three stages of cellular respiration, in which glucose, fatty acids and certain amino acids, the so-called fuel molecules, are oxidized (see Figure). The oxidation of these molecules is primarily used to transform the energy contained in these molecules into ATP. ATP provides for example energy for muscle contractions and can therefore be referred to as "energy currency" of the cells.  Before the fuel molecules can be inserted in the Krebs Cycle, they must first all be converted into acetyl-CoA. Looking at the path of a nutrient, such as glucose, the oxidation of the molecule takes place in the glycolysis. The product of the glycolysis is pyruvate. In a further reaction, which is catalyzed by the enzyme complex pyruvate dehydrogenase, acetyl-CoA is formed out of pyruvate, which can be introduced into the citric acid cycle or Krebs Cycle.

3. Electron transport chain : The electron transport chain is the last stage of the respiration pathway. It is the stage that produces the most ATP molecules.  The electron transport chain is a collection of carrier proteins found on the inner membrane of mitochondria. NADH release the hydrogen ions and electrons into the transport chain.