Practice Questions

TLS Online TPP Program

#Question id: 547

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

#1. Molecules and their Interaction Relevant to Biology

bind a transition state intermediate, such that it cannot be converted back to substrate.
ensure that all of the substrate is converted to product.
ensure that the product is more stable than the substrate.
increase the rate at which substrate is converted into product.

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TLS Online TPP Program

#Question id: 15480

#12. Applied Biology

Feedback repression involves the turning “off” of enzyme synthesis when the amount of the product has been made in sufficient quantities. The end product of the pathway acts as

TLS Online TPP Program

#Question id: 16311

#7. System Physiology – Animal

What is stress?

TLS Online TPP Program

#Question id: 19328

#12. Applied Biology

Which one of the following is a bio microarray device?

TLS Online TPP Program

#Question id: 2948

#2. Cellular Organization

A cell that is entering the M phase of the cell cycle is:

TLS Online TPP Program

#Question id: 14856

#13. Methods in Biology

If 3 squares are chosen at random on a chess board the probability that they should be in a diagonal line is