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TLS Online TPP Program

#Question id: 547

The role of an enzyme in an enzyme-catalyzed reaction is to:

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. bind a transition state intermediate, such that it cannot be converted back to substrate.

  2. ensure that all of the substrate is converted to product.

  3. ensure that the product is more stable than the substrate.

  4. increase the rate at which substrate is converted into product.

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TLS Online TPP Program

#Question id: 23920

#General Aptitude

Removal of which of the following impurities from contaminated water requires the of coagulants:
TLS Online TPP Program

#Question id: 11046

#Unit 7. System Physiology – Animal

Which of the following has the fastest rate of movement across the capillary wall?
TLS Online TPP Program

#Question id: 3658

#Unit 3. Fundamental Processes

In E. coli, the UvrABC endonuclease removes _____________and other bulky lesions by recognizing the distortion these produce in the double helix.
TLS Online TPP Program

#Question id: 12756

#Unit 10. Ecological Principles

Flycatcher birds that migrate from Africa to Europe feed their nestlings mostly with moth caterpillars. The data presented show the mean dates of egg laying, hatching, and fledging of flycatcher young, and the 1980 and 2000 peak mass of caterpillars.


The most likely cause for the shift in caterpillar peak mass is
TLS Online TPP Program

#Question id: 4122

#Unit 3. Fundamental Processes

RNA Pol uses its active site, in a simple back-reaction, to catalyze the removal of an incorrectly inserted ribonucleotide. This phenomenon known as