All enterics are facultative anaerobes; they have both respiratory and fermentative enzymes. What color results would you expect for organisms of O-F glucose media inoculated with an enteric? Remember to describe both the sealed and unsealed tubes.
Enterics would be yellow in both tubes. Unsealed, yellow = oxidation. Sealed, yellow = fermentation.

Explanation:

The O-F glucose test (oxidative-fermentation) is used to determine whether an organism is performs oxidative or fermentative metabolism.

Oxidative metabolism (i.e respiration) takes place in the presence of oxygen while fermentative takes place in the absence of oxygen.

Facultative anaerobes can carry out both fermentation and respiration.

The O-F medium has glucose, peptones and a pH indicator. When the pH of the medium is acidic, that is glucose has been broken down, the medium turns yellow. When it is basic, it turns blue implying that peptone and not glucose had been broken down.

The sealed tube is overlaid with oil so as to prevent oxygen from getting in, making it anaerobic.

The unsealed tube allows oxygen.

Enterics would be yellow is both tubes because they are facultative anaerobes and can grow in the presence or absence of oxygen, hence they carry out both respiration and fermentation.

life would be meaningless without memes

there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

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