Parkinsonâs disease is much less common than essential tremor.It does cause shaking of the hands but, unlike essential tremor, the shakingis worse when you are resting and not using the hand. The shaking in Parkinsonâs disease is called âpill rollingâ because it is like rolling a small pill between your thumb and the side of your index finger. Overactive thyroid is more common in womenthan in men, andoccurs mostcommonly in the people in their 20s and 30s.
I would like to draw out a comparision between an enzyme and a catalyst. Enzymes(biocatalysts) and catalysts are substances that enhance the rate of chemical reaction without undergoing any irreversible chemical change at the end of the reaction. Similarities between enzyme and a catalyst: 1.
An enzyme is a protein that speeds up the rate at which a chemical reaction occurs. Enzymes are substrate specific, meaning that each type of enzyme has a specific type of molecule that it affects.