Ammonium can be assimilated via an alternative pathway rather than primary pathway which involves the sequential actions of glutamine synthetase(GS) and glutamate synthase(GOGAT), these alternative pathway catalyzes by enzyme known as,

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#Question id: 563

#XL - Q Biochemistry

Both water and glucose share an —OH that can serve as a substrate for a reaction with the terminal phosphate of ATP catalyzed by hexokinase.  Glucose, however, is about a million times more reactive as a substrate than water.  The best explanation is that:

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#Question id: 564

#XL - Q Biochemistry

A good transition-state analog:

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#Question id: 565

#XL - Q Biochemistry

A transition-state analog:

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#Question id: 566

#XL - Q Biochemistry

The role of the metal ion (Mg2+) in catalysis by enolase is to

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#Question id: 567

#XL - Q Biochemistry

Penicillin and related drugs inhibit the enzyme; this enzyme is produced by 

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#Question id: 568

#XL - Q Biochemistry

Which of the following statements about allosteric control of enzymatic activity is false?