Match the Items with the Correct Description Below

question 30

Multiple Choice

Match the items with the correct description below.
-Irreversible hydrocolloid

• A)An alginate impression material that is mixed to a sol state and as it sets converts to a gel by a chemical reaction that irreversibly changes its nature
• B)Gluelike material composed of two or more substances in which one substance does not go into solution but is suspended within another substance
• C)An agar impression material that can be heated to change from a gel into a fluid state that can flow around the teeth
• D)A water-based colloid used as an elastic impression material
• E)A versatile irreversible hydrocolloid that is the most used impression material in the dental office

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Definitions:

Lock-and-key Mechanism

A model for enzyme-substrate interaction suggesting that the enzyme and substrate possess specific complementary geometric shapes that fit exactly into one another.

Codexis

A company specializing in the development of enzymes and biocatalytic processes for pharmaceutical and biofuel productions.

Commercial Process

A systematic sequence of activities designed to produce a product or service for the marketplace.