Question

* GWhe + Question 4 When glucose and oxygen become carbon dioxide plus water (cell resp reaction) which of the following is true: The reaction is.. positive delta G and glucose is oxidized negative delta G and glucose is oxidized positive delta Gandslucose is reduced negative delta Gandducose is reduced Question 5 If an enzyme facilitates an endergonic reaction, which of these is the mo probable to be true?

* GWhe + Question 4 When glucose and oxygen become carbon dioxide plus water (cell resp reaction) which of the following is true: The reaction is.. positive delta G and glucose is oxidized negative delta G and glucose is oxidized positive delta Gandslucose is reduced negative delta Gandducose is reduced Question 5 If an enzyme facilitates an endergonic reaction, which of these is the mo probable to be true?

Answer 1

4) negative delta G and glucose is oxidised.

During aerobic respiration, the oxygen taken in by a cell combines withglucose to produce energy in the form of Adenosine triphosphate (ATP), and the cell expels carbon dioxide and water. This is an oxidation reaction in which glucose is oxidized and oxygen is reduced.

Respiration is spontaneous because it releases energy (negative enthalpy) and becomes more disordered (positive entropy).

Explanation:

Spontaneous reactions have a decrease in enthalpy (total energy) and an increase in entropy (disorder).

This comes with the law of physics that things in nature, when left to themselves, will become more disordered and will lose energy. This is the Second Law of Thermodynamics. Spontaneous reactions are when a reaction happens naturally, in order to lose energy from a system and become more disordered.

Entropy can also be described as the energy released by a system when something happens.

The purpose of respiration is to release energy from glucose so that a body or organism can do things, like contract muscles and fire neurons. The equation is

C6H12O6+6O2→6CO2+6H2O

The fact that respiration releases energy means that it has a positive entropy (ΔS>0). You can also work out that it has a positive entropy because there are more molecules after the reaction than before - 12 afterwards compared to 7 before, adding up the large numbers in the equation. This means it is going from relative order to disorder.

Because the products, CO2 and H2O have a lower energy than the reactants, primarily glucose, this means that it is an exothermic reactions and so has a negative enthalpy (ΔH<0). This also makes sense because respiration releases energy from glucose.

As you can see, respiration fits the requirements for a spontaneous reaction. It is positive entropy and negative enthalpy and delta g is negative

57) gradient

The ATP synthase (or F₁F₀ ATPase and also referred to as complex V)uses the free energy of an electrochemical gradient of protons (or sodium ions) generated by the respiratory chain to synthesize ATP