Several genes coding for enzymes associated with osmotic adjustment are turned on (up-regulated) by osmotic stress and/or salinity, and cold stress. These genes encode enzymes such as the following;

I) ∆′1-Pyrroline-5-carboxylate synthase, a key enzyme in the proline biosynthetic pathway

II) myo-Inositol 6-O-methyltransferase, a rate-limiting enzyme in the accumulation of the cyclic sugar alcohol called pinitol

III) Betaine aldehyde dehydrogenase, an enzyme involved in glycine betaine accumulation

Given following statements of gene encoding enzyme is correct?

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#Question id: 614

#Unit 1. Structure and Function of Biomolecules

What type of inhibition is indicated by the data graphed below?

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#Question id: 615

#Unit 1. Structure and Function of Biomolecules

The following data were obtained in the presence and absence of inhibitor. What type of inhibition is shown?

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#Question id: 616

#Unit 1. Structure and Function of Biomolecules

Which equilibrium below applies to noncompetitive inhibition?

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#Question id: 617

#Unit 1. Structure and Function of Biomolecules

Compare the two reaction coordinate diagrams below and select the answer that correctly describes their relationship.  In each case, the single intermediate is the ES complex.

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#Question id: 618

#Unit 1. Structure and Function of Biomolecules

 In the following diagram of the first step in the reaction catalyzed by the protease chymotrypsin, the process of general base catalysis is illustrated by the number ________, and the process of covalent catalysis is illustrated by the number _________.

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#Question id: 619

#Unit 1. Structure and Function of Biomolecules

The benefit of measuring the initial rate of a reaction V0 is that at the beginning of a reaction: