If oxygen is not present to collect the electrons from Complex IV of the h ETS,
ID: 91920 • Letter: I
Question
If oxygen is not present to collect the electrons from Complex IV of the h ETS, the whole system will effectively shut down and ATP production will be significantly reduced. Most oxygen (98.5%) molecules are transported in the blood bound to the globin portions of hemoglobin molecules. The diaphragm and the external intercostal muscles are the primary muscles of quiet expiration. Surfactant is produced by Type II Alveolar cells found in the lungs and prevents the collapse of each alveolus by decreasing the surface tension in alveolar fluid. The lumen of the gastrointestinal tube is always considered to be an "external environment" that is outside of the body, so anything claimed from luminal contents must be transported across the G1 tube wall. Digestion, for us in this class, specifically means the enzymatic breakdown of macromolecules. The "normal flora" of the large intestine utilize your indigestible food stuff as their primary nutrient source, produce vitamin K that is absorbed through by the colon mucosa, and normally produce about 2.5 L to 3.0 L of flatus (often containing noxious and toxic gases) daily that is passed out through the anal sphincters. Chief cells found in gastric pits/glands produce and secrete the inactive enzyme pepsinogen. Complex II in the ETS is the only one that docs not "pump" a proton into the intermembrane space. Oxidative phosphorylation yields roughly the same energy' (ATP) as do anaerobic metabolic pathways. If oxygen is not present, pyruvate can be enzymatically converted into lactate or ethyl alcohol. The enzyme phosphofructokinase is responsible for changing 2-PG into PEP. The "default" condition of urine production is to create small amounts of extremely concentrated urine. Adipose tissue is the most hydrated of all of the tissues in the human body (approximately 75% H_2 O). The largest and most important source of H+ that alter body pH is ingestion of acidic food & liquids. Juxtamedullary nephrons have really long nephric loops that descend deep into the medullary salt gradient &, although they arc the minority, play the primary role in regulating final urine volume. ANP is scratch from the atria & causes DCT & CD to excrete Na+ ions & therefore H_2 O. Peristalsis can only procced in the oral-to-anal direction in every part of the gastrointestinal tube. The distal portions (antrum/pylorus) of the stomach is the site where almost all of your protein digestion and absorption occurs. The esophagus is unique from the rest of the GI tube in that it has skeletal muscle in its wall for the initial portions of its length (neck/throat region). Oxygenated hemoglobin releases oxygen much more readily and quickly when the pH is basic.Explanation / Answer
47) Oxygen is required for oxidative phosphorylation. At the end of electronic transport system (ETS), oxygen molecule accepts electron. The energy released in this process is used to form an electrochemical gradient. During chemiosmosis, the energy from this electrochemical gradient is used to produce ATP. So, if oxygen is absent, no gradient is created and production of ATP stops. Without ATP cells are no longer able to carry out their normal metabolic processes. If the oxygen becomes unavailable for a long time, then the cell eventually die.
Therefore, this statement is true.
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