Final answer:
The CP system refers to a cytochrome-based electron transport system which is oxidative and present in organisms that use oxygen in respiration, while the CK system is not directly related to this context. The oxidase test identifies bacteria with these redox enzymes through a color change from colorless to blue in the presence of cytochrome oxidases.
Step-by-step explanation:
The CP (cytochrome system) mentioned in the question seems to refer to a cytochrome-based electron transport system, like those found in mitochondria of eukaryotic cells and some aerobic bacteria. This system is associated with organisms that use oxygen as their final electron acceptor in respiration, indicating that the system is oxidative (ox) rather than non-oxidative (non ox). The CK system is not specifically mentioned in the context provided, but if it refers to creatine kinase, it is not directly part of the electron transport system; thus, it is not classified within the oxidative or non-oxidative context in the same way.
The oxidase test is a technique used to identify bacteria that produce cytochrome oxidase or indophenol oxidases. A well-known commercial test system, for example, the BBL DrySlide Oxidase test, can be used to perform this test. A positive oxidase test is seen when the reagent on the card, which is initially colorless, turns dark blue upon oxidation by the cytochrome oxidase enzymes.