The correct option is a. Enzymes lower the activation energy of chemical reactions.
Explanation:
Enzymes are molecules, usually proteins, that act as catalysts, that is, they accelerate the chemical reactions that occur in the cells of living organisms, they act on molecules called substrates and each one is linked to a region of the enzyme, called active site, which is the site where catalytic fuction occurs. The catalytic function is to reduce the activation energy necessary to start biochemical reactions, that is to reduce the energy needed to break and create new bonds, allowing the formation of a product to be much faster.
Enzymes are biological catalysts which speed up the speed of reaction by lowering the activation energy without itself being consumed for e.g to digest proteins there are dfrn enzymes and to digest carbohydrates there are dfrn enzymes every enzyme is specific in its function
Psychologists can usually tell if you have depression by asking you specific questions and doing a physical exam. Psychologists may, however, ask for lab tests to rule out other diagnoses. They will likely do blood tests to check for medical conditions that may cause depressive symptoms.
