The conversion of threonine to isoleucine by bacteria involves a regulatory mechanism. Select all that apply. - An excess of isoleucine acts as a noncompetitive inhibitor of threonine deaminase.
- An excess of threonine acts as a noncompetitive inhibitor of threonine deaminase.
The regulatory mechanism is end-product inhibition.
An excess of isoleucine acts as a competitive inhibitor of threonine deaminase.
When in excess, threonine allosterically binds to threonine deaminase
The regulatory mechanism is an example of positive feedback.
An excess of threonine acts as a competitive inhibitor of threonine deaminase.
When in excess Isoleucine allosterically binds to threonine deaminase.

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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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explanation:

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