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A non competitive inhibitor has a different shape to the substrate molecule.The inhibitor binds to an allosteric site.This causes a conformational change meaning the substrate is no longer able to bind to...

1. Circular2) Polycistronic (genes can be expressed together)3) No introns/no splicing of genes4) Does not form chromatin (although explain to student that this is an oversimplification, prokaryotes do...

Enzymes are specific: meaning that an enzyme's active site is complementary to a particular substrate. In the lock and key hypothesis, a substrate that is complementary to the enzyme binds to the enzyme's...

1. detoxification: liver cells contain enzymes which break down toxins for example catalase, this enzyme is responsible for converting toxin hydrogen peroxide into water and oxygen. enzymes can detoxif...

part of the DNA molecule unwinds DNA strands separate by DNA helicase breaking the hydrogen bonds one strand used as the template strand free nucleotides line up against DNA and bind through complementary...