The  graph  below  shows  the  growth  rates  of  populations  of  bacteria  that  have  evolved  for  many  generations  at different culture temperatures (25°C, 30°C, and 35°C). Each population grows over only a limited range of temperatures (its thermal niche), which are bounded by its critical thermal limits. Within this range, growth rate increases with temperature up to a maximal value and then declines rapidly with increasing temperature. Growth rates are known to be the major determinant of fitness for these bacteria.

If all three populations were mixed together and placed at 37°C, which of the following would  be most likely to happen?

TLS Online TPP Program

#Question id: 22023

#Unit 1. Molecules and their Interaction Relevant to Biology

Choose the correct equation for Haldane reversible reaction

TLS Online TPP Program

#Question id: 22024

#Unit 1. Molecules and their Interaction Relevant to Biology

Some of the statements regarding competitive inhibition are given below

a)  The effect of a competitive inhibitor depends on the inhibitor concentration, the substrate       concentration and the relative affinities of the substrate and the inhibitor for the enzyme.

b) if the substrate concentration is low, the degree of inhibition will be great.

c) the substrate concentration is high, then the degree of inhibition will be marked low

d) non-competitive inhibitor can combine with an enzyme molecule to produce a dead-end complex

Choose the incorrect statement

TLS Online TPP Program

#Question id: 22025

#Unit 1. Molecules and their Interaction Relevant to Biology

The Lineweaver-Burk equation in the presence of a competitive inhibitor will be: and Lineweaver-Burk plot showing the effect of competitive inhibition are shown

       

                      

What will be the value of X and X’ for above graph

TLS Online TPP Program

#Question id: 22060

#Unit 1. Molecules and their Interaction Relevant to Biology

Km can be calculated from two ways from Lineweaver-Burk equation, choose the most appropriate one

TLS Online TPP Program

#Question id: 427

#Unit 1. Molecules and their Interaction Relevant to Biology

The degradation of which class of biochemicals does not significantly contribute to the release of energy to cells?

TLS Online TPP Program

#Question id: 2667

#Unit 1. Molecules and their Interaction Relevant to Biology

A regulatory protein that attracts RNA polymerase to its promoter is an example of what type of regulation?