3. The human body has devised an excellent method to keep the body pH under control.
a. What principle underlies the constant pH of human blood, and how does the blood achieve this? (1 point)
b. Use Le Châtelier’s principle to explain how the human body is protected against low pH after excessive exercise. (1 point)
c. Use the concept of the equilibrium constant to explain why neutrality in the blood depends on the concentrations of [H+] and [OH-] rather than pH. (1 point)
3.a. The principle behind the constancy of the pH of blood is the Buffering Principle i.e Blood acts like a Buffer solution which restrict the change of pH in a huge amount if a small amount of Acid or base is added.
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If you drink water,it reacts with the Carbon Dioxide in the Blood to produce Carbonic Acid () which decrease the pH level of blood but it soon dissociates into Bicarbonate ion() which again raise the pH level.
3.b. As we do extensive exercise,our body uses from hemoglobin and release and due to which the pH levels of our blood drops from the standard 7.4 to approx 7.1-7.2. The Buffer system doesn't allow a significant drop in pH as more carbonic acid is produced, the equilibrium 1 sets off and produces Bicarbonate ions very quickly according to Le-Chatelier's Principle to balance the pH level again (According to Le-Chatelier's principle,the forward reaction favors if there is more supply of reagent which is Carbonic acid here).
3.c.
3. The human body has devised an excellent method to keep the body pH under control. a. What principle underlies the constant pH of human blood, and how does the blood achieve this? (1 point)...
1. According to the paper, what does lactate dehydrogenase (LDH) do and what does it allow to happen within the myofiber? (5 points) 2. According to the paper, what is the major disadvantage of relying on glycolysis during high-intensity exercise? (5 points) 3. Using Figure 1 in the paper, briefly describe the different sources of ATP production at 50% versus 90% AND explain whether you believe this depiction of ATP production applies to a Type IIX myofiber in a human....