How Many ATP Molecules are Produced During Respiration

Edited By Team Careers360 | Updated on May 03, 2023 10:48 AM IST

Introduction:

Respiration is the mechanism by which cells break down food material to release energy and capture that energy through the synthesis of ATP. During the process of respiration, the C-C bond is broken down by complex bonds. Compounds that are oxidized in this process are called respiratory substrates.

38 ATP molecules are synthesized by oxidizing glucose molecules during cellular respiration. Four ATP molecules are released during glycolysis, and two ATP are consumed in the process. Therefore, the net increase in ATP during glycolysis is 2. Two ATP molecules are formed from the Krebs cycle and approximately 34 molecules are formed from the (ETC) Electron Transport Chain. However, this maximum yield is never fully reached due to loss through leaky membranes and the cost of transporting pyruvate and ADP to the mitochondrial matrix. When the body needs energy, ATP is broken down into ADP and inorganic phosphate, releasing the energy suspended within.

Respiration:

1. Respiration is a multistep biochemical process involving enzymes that leads to the oxidative destruction of organic compounds within living cells.

2. During cellular respiration, one glucose molecule is metabolized into 38 ATP molecules.

3. The electron transport chain produces a total of 38 to 34 molecules of ATP. In glycolysis, two ATP molecules are generated inside the mitochondria and two ATP molecules outside the mitochondria.

4. Cellular respiration is the process by which cells produce energy by breaking down food components, which are then captured by the synthesis of ATP.

5. Often called the body's energy currency, ATP is used to store energy that is released at various stages.

Conclusion:

The energy trapped in ATP molecules is used in a variety of energy-consuming processes in living organisms, and the carbon skeleton produced during respiration is used as a precursor for the biosynthesis of other molecules in the cell. increase. ATP is broken down whenever energy needs to be used.

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