Answer to Question 1
Generics are low-risk, low-value items and services that typically do not enter the final product. Items such as office supplies and maintenance, repair, and operating items (MRO) are examples of generics. The administrative and acquisition processing costs are more significant than the purchase price of generics, and, for some generics, the administration and processing costs may exceed the price paid for the item or service.
Commodities are items or services that are low in risk but high in value. Basic production materials (bolts), basic packaging (exterior box), and transportation services are examples of commodities that enhance the profitability of the company but pose a low risk.
Distinctives are high-risk, low-value items and services such as engineered items, parts that are available from only a limited number of suppliers, or items that have a long lead time. The company's customers are unaware of or do not care about the uniqueness of distinctives, but these products pose a threat to continued operation and/or high procurement cost.
Criticals are high-risk, high-value items that give the final product a competitive advantage in the marketplace. The procurement strategy for criticals is to strengthen their value through use of new technologies, simplification, close supplier relations, and/or value-added alterations.
Answer to Question 2
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Types of transporters based on the direction of transport.
Major types of plant secondary metabolites
Types of Immunity
Types of Immunoglobulins
Types of immunity.
Plaque formation by rll wild types and mutants