Chemical Reactions in Healthcare: Biochemical, Pharmaceutical, and Diagnostic

Week 4 Assignment 1 Discussion
What is the difference between biochemical, pharmaceutical, and diagnostic chemical reactions in healthcare? What is a specific example that exists for each of these chemical reaction types above and why might it be of importance to healthcare professionals?
In chemistry, we calculate and measure substance to use them in all kind of substance and form every day. It is everywhere in our lives. We use it in all we do, such as cooking cleaning, eating, even in our work force and home. The texts states: (quote) that fuel in our cars with oxygen to make the car move and run, when we cook our food or bleach our hair, chemical reactions take place. (Timberlake, K. C., 01/2014, pg. 211).
It’s also states that, (quote)

Next, I research some example of the three. In biochemical reactions are reduction and oxidation, water additional and removal, bond breaking reactions and the movement of groups between molecules.
Pharmaceutical is, if you taking some type of medication over the counter and it states different type of allergic reactions to it, because this is some type of drugs we take to heal our body, and it is mixes with all kind of formula, which makes it also a chemical reaction that we have to be very carefully when taking it, or we can have a reaction from the drug.
Chemical reaction can be a building blocks of chemistry such as atom, ions, molecules, and electrons. Thing we studied last week in week 3. It is important to healthcare professionals, because our bodies are made from chemicals, where all matters do matter, because chemistry are made of just about everything in our lives. Especially in our healthcare field environment we have labs, pharmacy, plants, and Industry plants in chemistry. These are some example we use of the three chemical

They have great consequence in the fields of medicine and pharmacology. (Timberlake, K. C., 01/2014, pg. 242)
Identify the two important classes of catalysts.
A catalyst is divide into two important class, they are heterogeneous and homogeneous. The heterogeneous reactions are in a difference phase from reactants, while the homogenous reaction stays in the same phase as the reactants. www.chemguide.co.uk/physical/catalysis/introduction.html
Choose a catalyst that exists in the human body. Explain its importance and how it works.
Enzymes is a catalyst that exists in the human body, because it makes up most metabolic reactions that go at the rates necessary for proper cellular activity. It takes place in the living bodies. www.scienceclarified.com/Ca-Ch/Carbon-Cycle.html Analyze the chemical reactions that take place when a biological catalyst combines with a reactant (substrate) to form an unstable intermediate.
I’m having a problem with this one, the only thing I can think of is enzymes, cause of what I stated above, it makes up most metabolic reactions go at the rate necessary for proper cellular activity. This is just my thinking; I may be wrong. I would love anyone comments on