Unit two day five

19 terms by jleaknowles 

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Metabolism

All chemical reactions occurring in microbes.

Anabolism

Synthetic metabolism, forms new chemical bonds.

Catabolism

Degradative metabolism, breaks chemical bonds.

Endergonic

Requires energy.

Exergonic

Releases surplus of energy.

Enzyme

Biological catalyst. Reduces activation energy so reactions can occur at temps compatible with life.

Active sites

Areas where substrates attach.

Lock-and-key mechanism

Fit between enzyme ad substrate.

Allosteric sites

Areas where molecules other than substrates attach.

Simple enzymes

Proteins with catalytic activity.

Conjugated enzyme

Inactive protein plus cofactor.

Cofactor

Non protein that is bound to a protein and required for protein's biological activity.

Competitive inhibitors

Chemicals that bind to active sites.

Noncompetitive inhibitors

Chemicals that bind to allosteric sites or cofactors.

Metabolic pathway

Series of chemical reactions occurring within a cell.

Exoenzymes

Secreted into environment.

Endoenzymes

Function within microbe.

Constitutive enzymes

Produced at constant rate at all times.

Inducible enzymes

Produced only when the substrate is present.

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