Tuesday, September 8, 2009



Yes, I agree that drug testing must be done in schools before the admission of the students, because it is very important to know if the student is a drug user or not. Drug testing is useful for all students, not just those taking a medical course.

We all know that drugs have adverse effects on human. They can bring euphoria and sometimes physical and emotional dependence if people use them for a long time. Many crimes in our world today are due to drug addiction and unfortunately drug users can do something that is evil. Crimes then can be prevented in the school campus if it is a drug free place without worries about safety and security.

The question is, "What will happen to those people who would be positive in the Drug Test? Will they or will they not be allowed to enter School?". These questions I think should be answered by the school administration. Then they will decide what to do with these people, because some who might be positive for drugs may want to have a new life and they deserve a chance to prove themselves. I don't want to comment further about these questions.

Students do not have to use drugs in order for them to be good in school. They just have to believe in themselves. Drugs bring bad things to people instead of good things. I think Drug Testing will benefit the school, the faculty members and the students as well.

Get High on Life, Not on Drugs!!!
Photo by: jenniferlawler

Tuesday, September 1, 2009

Answers to Questions on Type 1 Hormone Mechanism


1. Enzymes (catalyst) will act with the hormones which will serve as the messengers to invoke changes in the target cell.
2. The two types of receptor in cell are the cell surface receptor and intracellular receptor.
3. The cell surface receptor only acts outside of the cell while the intracellular receptor will go inside the cell and will act there.
4. Examples of hormone in type 1 mechanism are peptide hormone, proteins, catecholamines and eicosanoids.
5. Examples of hormone for type 2 mechanism are the steroids and thyroid hormones.
6. Example of 2nd messenger is the adenylate cyclase.

Fill in the blanks:

Hormones in the type 1 mechanism find their receptor on the plasma membrane of the target cells.

The binding of hormone to the receptor will result to the production of second messengers within the cell.

This then will trigger a series of molecular interactions that will alter the physiologic state of the cell.

Each of the hormones will bind to the receptor protein that are embedded in the cytoplasmic membrane of the target cell.

Near the receptor protein is adenylate cyclase which is in inactive form and will act as the 2nd messenger.

It is important to know the type of receptor a hormone utilize to know its action. If it is steroid or non-steroid hormone.

The type 1 mechanism acts faster because it just reacts on the cell surface unlike the type 2 it will first go inside the cell then will have the reaction there.