According to Florida State Universtiy, pH affects enzyme activity by altering or inhibiting an enzyme from catalyzing a reaction. Changes in pH affect polar and non-polar forces, alter the shape of an enzyme and the active site, and cause the chemical change to occur ineffectively or not at all.Know More
Florida State University states that basic groups in acidic solutions will be protonated while acidic groups in basic environments will be deprotonated. This alters the electrical attractions between polar groups.
Florida State University claims that every enzyme has an optimum pH range. Some enzymes, such as those in the stomach, function best at very low acidic pH levels. Other enzymes, such as those in saliva, function best near neutrality. Still other enzymes such as lipases function best at basic pH levels.
Florida State University explains the effects that pH levels have on enzyme activity by using two examples describing enzymes found in the blood. One example is acidosis, which occurs when pH levels drop in the blood, shifting the enzymes in the blood out of their optimum pH range. Another example is alkalosis which occurs when pH levels rise exponentially high causing enzymes to function ineffectively. Florida State University explains that these conditions do normally not occur because of the buffers found in the blood. These buffers are substances that resist change in pH and restrict the pH levels to a narrow range. The many buffers found in the body adjust pH levels so that enzymes can continue to catalyze their reactions.Learn more about Biology
The reaction of oxygen and glucose produces energy and carbon dioxide. Carbohydrate and water are also both by-products of the reaction. Some energy released is in the form of heat which maintains human body temperature.Full Answer >
A reflex is faster than a voluntary reaction because of the relative complexity of the neural pathway of reaction compared to that of a reflex, according to Carolina Biological Supply. Each type of response is initiated by a sensory stimulus.Full Answer >
Factors that influence enzyme activity include substrate concentration, enzyme concentration, temperature, pH and the presence of any activators or inhibitors. Enzymes act as catalysts for biochemical activities.Full Answer >
A diastase is any one of a group of enzymes that catalyze the breakdown of starches into maltose. Diastase only facillitates and does not cause this breakdown. However, the speed of this reaction is negligibly small without the presence of diastase. Diastases are present in malted grains and also in the pancreas, and they are very important in the process of brewing beer.Full Answer >