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#Question id: 1623


Which of the following is a complement component that is strongly chemotactic for neutrophils?

#Section 2: General Biology
  1. C9

  2. C5a

  3. C3

  4. C3b


Answer:- Option(s): 2


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#Question id: 605

#Section 2: General Biology

Which statement is false about allosteric regulation?

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#Question id: 606

#Section 2: General Biology

Which statement is false about regulatory enzymes that are controlled allosterically?

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#Question id: 607

#Section 2: General Biology

In E. coli ________ is an activator and ________ is a negative allosteric modulator of the enzyme phosphofructokinase-1. 

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#Question id: 608

#Section 2: General Biology

The ʺTʺ state refers to the ________.

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#Question id: 609

#Section 2: General Biology

The ________ theory explains cooperative binding by suggesting all subunits of a given protein have the same conformation, either all R or all T.

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#Question id: 610

#Section 2: General Biology

Protein A has four identical subunits, each of which binds one molecule of ligand Y. The binding of one molecule of Y to one of the subunits induces a conformational change in neighboring subunits that enhances the binding of additional units of Y. This is an example of________.

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