A protein that is said to be denatured means that its tertiary structure is caused to unfold possibly by heat, alkali, acid, or by other chemical or physical means, making the molecule lose its original state and become biologically inactive.
Education and Training Requirements. Individuals interested in becoming a host or hostess should take courses in business, arithmetic, bookkeeping, family and consumer science, and public speaking. Hosts and hostesses should be friendly and outgoing people who can remain calm and courteous during rush periods.
In order to be eligible for citizenship, you must meet six basic requirements. 1  Be a lawful permanent resident, also known as a green card holder. 2  Be at least eighteen years old. 3  Have had a green card for at least five years. Or, if you are married to a U.S. citizen, for three years. Have lived in the same state for at least three months before applying. Be a person of good moral character.