Answer :
A low pH activates pepsin (1.5 to 2). At the a pH around 1.8, which is extremely acidic, pepsin functions optimally.
An aspartic protease called pepsin helps mammals digest their food in the stomach. Pepsin can function in its naturally acidic environment at a pH of roughly 2, but at neutral pH, the protein becomes denatured. Because substrates frequently collide with the enzyme's active sites due to the molecules' rapid movement, the rate of enzyme activity increases as temperature rises from low to high (Reece et al., 2011). Pepsin action around 30 °C in L, at its peak. Pepsin functions best at pH 1.8 so because carboxylic group just on amino in the active site of pepsin must be in the protonated form, which is bound to a hydrogen atom. At low pH levels, a carboxylic acid molecule is protonated, enabling.
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