Can someone explain if this sentence is true or false. A proton gradient exisits across the inner membrane in chloroplasts and across the thykaloid membrane in mitochondria.
Electron Transport Chain
The electron transport chain, also known as the electron transport system, is a group of proteins that transfer electrons through a membrane within mitochondria to create a gradient of protons that drives adenosine triphosphate (ATP)synthesis. The cell uses ATP as an energy source for metabolic processes and cellular functions. ETC involves series of reactions that convert redox energy from NADH (nicotinamide adenine dinucleotide (NAD) + hydrogen (H)) and FADH2(flavin adenine dinucleotide (FAD)) oxidation into proton-motive force(PMF), which is then used to synthesize ATP through conformational changes in the ATP synthase complex, a process known as oxidative phosphorylation.
Metabolism
Picture a campfire. It keeps the body warm on a cold night and provides light. To ensure that the fire keeps burning, fuel needs to be added(pieces of wood in this case). When a small piece is added, the fire burns bright for a bit and then dies down unless more wood is added. But, if too many pieces are placed at a time, the fire escalates and burns for a longer time, without actually burning away all the pieces that have been added. Many of them, especially the larger chunks or damp pieces, remain unburnt.
Cellular Respiration
Cellular respiration is the cellular process involved in the generation of adenosine triphosphate (ATP) molecules from the organic nutritional source obtained from the diet. It is a universal process observed in all types of life forms. The glucose (chemical formula C6H12O6) molecules are the preferred raw material for cell respiration as it possesses a simple structure and is highly efficient in nature.
This was a true/false question that I got wrong. I think I marked true, it just marked it as wrong, it wont show what I chose. Can someone explain if this sentence is true or false.
A proton gradient exisits across the inner membrane in chloroplasts and across the thykaloid membrane in mitochondria.
* An ion that flow across a membrane will exhibits an electrochemical gradient.
*The gradient is made up of two components i.e, an electrical gradient and a chemical gradient.
*When an ion concentrations are unevenly distributed across a permeable membrane, the ion will simply diffuse across the membrane from the region of higher concentration to the region of lower concentration.
*Ions also have an electric charge, and this electric charge can be used to provide an electric potential to a membrane. The force that drives ion diffusion until the charges are balanced on both sides of the membrane occurs when charges are distributed unevenly across the membrane. This force is caused by the difference in electric potential
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