Practice Questions

TLS Online TPP Program

#Question id: 553

The concept of “induced fit” refers to the fact that:

#Unit 1. Molecules and their Interaction Relevant to Biology

enzyme specificity is induced by enzyme-substrate binding.
enzyme-substrate binding induces an increase in the reaction entropy, thereby catalyzing the reaction.
enzyme-substrate binding induces movement along the reaction coordinate to the transition state.
substrate binding may induce a conformational change in the enzyme, which then brings catalytic groups into proper orientation.

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TLS Online TPP Program

#Question id: 922

#Unit 1. Molecules and their Interaction Relevant to Biology

Which compound is an intermediate of the  oxidation of fatty acids?

TLS Online TPP Program

#Question id: 3961

#Unit 3. Fundamental Processes

If there were a mutation in the regulatory gene of an inducible promoter rendering the protein incapable of binding to the repressor, then

TLS Online TPP Program

#Question id: 28657

#Unit 2. Cellular Organization

Cohesins are composed of which of the following subunits?

TLS Online TPP Program

#Question id: 19361

#Unit 13. Methods in Biology

How can the recombinants of phagemid vector Pembl8 be identified?

TLS Online TPP Program

#Question id: 22975

#Unit 7. System Physiology – Animal

1,25-dihydroxycholecalciferol stimulates the,

a. Secretion of phosphate ions from kidney

b. Secretion of calcium from kidney

c. Reabsorption of calcium from kidney

d. Reabsorption of phosphate ions from kidney