etabolism is essential to life and is the process by which cells make energy to carry out all of the processes required for them to survive. Metabolism requires that the organism transport substances from the environment into the cell to utilize in their metabolic pathways. Bacteria have a diverse array of potential metabolic processes to make energy. Given the information below (A. and B.), describe how the organisms would make ATP in the environment they are found. Make sure to discuss in detail each of the pathways, including the starting products, end products, components of the ETC (if applicable), how the cell makes ATP during this process, where in the cell each of these pathways occur and the transport mechanism(s) utilized to move the starting products from the environment into the cell. An anaerobic organism that is only able to ferment lactose.
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.
- An anaerobic organism that is only able to ferment lactose.
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