During an enzyme purification, 0.23 g of protein was dissolved in 5 mL buffer. Suppose 0.5 mL of this solution converted 4.7 mmol of substrate in 30 sec. Calculate specific activity as units/mg protein - 

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#Question id: 185

#Section 2: General Biology

Match the amino acids with their correct functional group:

1. Indole	i. Histidine
2. Imidazole	ii. Tryptophan
3. Thiol	iii. Cysteine
4. Pyrrolidine	iv. Proline

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#Question id: 188

#Section 2: General Biology

Active holoenzymes are formed from ________ in the presence of ________.

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#Question id: 190

#Section 2: General Biology

Ca++ or Mg++ are most likely to be part of ________, while Zn++ or Fe++ are present in ________.

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#Question id: 191

#Section 2: General Biology

The role of zinc in the mechanisms of carbonic anhydrase is to

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#Question id: 193

#Section 2: General Biology

An ion commonly found in metalloenzymes and which can undergo reversible oxidation and reduction is

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#Question id: 194

#Section 2: General Biology

Which does not return to its original form after each catalysis?