![]() ![]() The entropy of a system always decreases for a spontaneous process. Perpetual motion machines are a possibility in the near future. There is a 'heat tax' for every energy transaction. D) ATPase activity must be opening a channel for the calcium ions to diffuse back into the SR along the concentration gradient. Question: Which of the following statements is TRUE A spontaneous reaction is always a fast reaction. ![]() B) The entropy of the system plus the entropy of the surroundings equals zero. C) ATPase activity must be pumping calcium from the cytosol to the SR against the concentration gradient. A) The entropy for all reactions is positive. B) ATPase activity must be transferring i to the SR to enable this to occur. If a resting muscle cell's cytosol has a free calcium ion concentration of 10-7 while the concentration in the SR is 10-2, then how is the ATPase acting? A) ATPase activity must be powering an inflow of calcium from the outside of the cell into the SR. For example, muscle cells transport calcium from the cytosol into the membranous system called the sarcoplasmic reticulum (SR). true or false the main term in a diagnostic statement is the anatomical. ![]() It is very closely related to the Kelvin statement given just above. Please explain these codes in a 2016 Volvo VNL 780 Truck. Because small increases in calcium ions in the cytosol can trigger a number of different intracellular reactions, cells keep the cytosolic calcium concentration quite low under normal conditions, using ATP-powered calcium pumps. Not mentioning entropy, this principle of Planck is stated in physical terms. Such ATP-powered pumps are often called ATPases, although they do not often hydrolyze ATP unless they are simultaneously transporting ions. 27) A number of systems for pumping ions across membranes are powered by ATP. (a) In adiabatic process, the entropy will stay the same and (b) in isothermal process, the entropy will. ![]()
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