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#Question id: 2190


Membrane carbohydrates occur as:

#XL - S Microbiology
  1. either glycoproteins or glycolipids, but are not free in the membrane.

  2. either glycoproteins, or free in the membrane, but are not attached to lipids.

  3. either glycolipids or free in the membrane, but are not attached to proteins.

  4. neither glycoproteins nor glycolipids.


Answer:- Option(s): 1


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TLS Online TPP Program

#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:

TLS Online TPP Program

#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?

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