Why does the oxidation of organic compounds by molecular oxygen to produce CO2 in water release free energy?

Why does the oxidation of organic compounds by molecular oxygen to produce CO2 and water release free energy? The oxidation of organic compounds releases less energy than the energy stored in the covalent bonds of CO2 and water. The covalent bond in O2 is unstable and easily broken by electrons from organic molecules.

Does O2 prevent the formation of organic molecules?

Oxidation reaction requires the presence of oxygen in its free form. The presence of oxygen would have caused the breakdown of the organic molecules immediately after their formation, but the absence of oxygen would have promoted the formation of organic molecules.

Which gas is used in the process of oxidation of organic matter?

Carbon dioxide also exchanges through photosynthesis in plants and through respiration in animals. Dead and decaying organic matter may ferment and release CO2 or methane (CH4) or may be incorporated into sedimentary rock, where it is converted to fossil fuels.

What is the primary role of oxygen in cellular respiration?

What is the role of oxygen in cellular respiration? Oxygen accepts high-energy electrons after they are stripped from glucose. Cellular respiration accomplishes two major processes: (1) it breaks glucose down into smaller molecules, and (2) it harvests the chemical energy released and stores it in ATP molecules.

What is the process by which energy in organic molecules is released by oxidation?

Cellular respiration can be defined generally as the process by which chemical energy is released during the oxidation of organic molecules. If it requires oxygen it is called aerobic respiration, whereas if it takes place in the absence of oxygen it is anaerobic respiration.

What is the purpose of molecular oxygen?

Molecular oxygen is essential for life, as it is used for respiration by many organisms. It’s also essential for fossil fuel combustion. Molecular oxygen is very chemically reactive, and tends to form oxides by reaction with other elements and compounds quite easily.

Is O2 an organic molecule?

Oxygen is neither an organic nor inorganic molecule, because by itself it is just an atom. A molecule is two or more atoms joined together. O2 molecules are technically classed as elements, as they only contain one type of atom. So O2 is not a compound at all, it’s an element!

Why is oxygen good at oxidizing organic molecules?

1). Oxygen (in its elemental form) is a crucial reactant in combustion reactions, and it is also present in the products. Because of its abundance in the air, O2 is the most ubiquitous oxidizing agent on Earth. Energy in the form of heat is usually given off as a product in a combustion reaction as well.

Does oxidation release oxygen?

Oxidation is the gain of oxygen. Reduction is the loss of oxygen.

What is the role of oxygen in photosynthesis and cellular respiration?

In photosynthesis, solar energy is harvested as chemical energy in a process that converts water and carbon dioxide to glucose. Oxygen is released as a byproduct. In cellular respiration, oxygen is used to break down glucose, releasing chemical energy and heat in the process.

What is produced when electrons are accepted by oxygen during cellular respiration?

Explanation: In cellular respiration, oxygen is the final electron acceptor. Oxygen accepts the electrons after they have passed through the electron transport chain and ATPase, the enzyme responsible for creating high-energy ATP molecules.

What is the role of oxygen in the electron transport chain?

Oxygen is the terminal electron acceptor in the mitochondrial electron transport chain and therefore is required for the generation of energy through oxidative phosphorylation.

What happens in an oxidation-reduction reaction?

In an oxidation-reduction reaction, the reducing agent loses electrons and gains potential energy. gains electrons and loses potential energy. loses electrons and loses potential energy. gains electrons and gains potential energy. loses electrons and loses potential energy

What is produced when ATP is consumed in an oxidation-reduction reaction?

ATP is consumed, and oxygen is produced. Oxygen is consumed, and glucose is produced. Glucose is consumed, and carbon dioxide is produced. Glucose is consumed, and carbon dioxide is produced. In an oxidation-reduction reaction, the reducing agent

Which has more kinetic energy water or carbon dioxide?

The covalent bonds in organic molecules and molecular oxygen have more kinetic energy than the covalent bonds in water and carbon dioxide. The electrons have higher potential energy when associated with water and CO2 than they do in the organic compounds.

What are the complete reactions of cellular respiration in the presence of oxygen?

The complete reactions of cellular respiration in the presence of oxygen (C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + energy) result in which of the following? oxidation of C6H12O6 and reduction of O2