What are endergonic reactions? How can endergonic reactions proceed in organisms?

An endergonic reaction is a chemical reaction where the reactants have a lower free energy than the products. Enderonic reactions are coupled to exergonic reactions which cause the release in energy and therefore the reactions are able to proceed in organisms.
(Am i on the right path here? is this making sense? Am i leaving anything huge out or is this pretty much answering the question?)

A top quality, standards-based web browser. ,

Yes, you're on the right track! An endergonic reaction is indeed a chemical reaction that requires an input of energy to proceed. In an endergonic reaction, the products have higher free energy than the reactants.

To answer the second part of your question, endergonic reactions can proceed in organisms by coupling them with exergonic reactions. In biological systems, most endergonic reactions are coupled with the hydrolysis of ATP (adenosine triphosphate), which is an exergonic reaction that releases energy. The energy released from the exergonic ATP hydrolysis is utilized to drive the endergonic reaction, making it energetically favorable. This coupling enables cells to perform essential processes that require energy, such as muscle contraction, active transport, and synthesizing molecules like proteins and nucleic acids.

So, by coupling endergonic reactions to exergonic reactions, organisms can proceed with energetically unfavorable reactions and maintain the necessary energy balance for biological processes to occur.

Yes, you are on the right path and making sense. However, there are a few additional points that can further clarify the concept of endergonic reactions and their occurrence in organisms.

In an endergonic reaction, energy is required to make the reaction proceed as the products have higher free energy compared to the reactants. This implies that the reaction cannot occur spontaneously and needs an input of energy to overcome the energy barrier.

In organisms, endergonic reactions often proceed by coupling them with exergonic reactions. Exergonic reactions release energy and provide the necessary energy input for the endergonic reactions to occur. This coupling is facilitated by molecules called ATP (adenosine triphosphate), which acts as an energy carrier in cells.

ATP provides energy for cellular processes by undergoing hydrolysis, where it is converted to ADP (adenosine diphosphate) and inorganic phosphate (Pi), releasing energy in the process. This released energy is then used to drive endergonic reactions, which require energy input, making them energetically favorable.

Therefore, by coupling an exergonic reaction (ATP hydrolysis) with an endergonic reaction, the overall process becomes energetically favorable, allowing endergonic reactions to proceed in organisms.

So, to summarize, endergonic reactions require an input of energy to proceed, and this energy is provided by coupling them with exergonic reactions, often using ATP as an energy carrier in organisms.