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TLS Online TPP Program

#Question id: 647

For the hypothetical reversible reaction where S is converted to P, the rate constant for the forward reaction is 105 s-1 while that of the backward reaction is 101 s-1. If the reaction is catalyzed by an enzyme, the rate constant for the forward reaction increases 100-fold. What will be the equilibrium constant of the enzyme catalyzed reaction?

#Unit 1. Molecules and their Interaction Relevant to Biology

  1. 105

  2. 104 

  3. 106 

  4. 103

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TLS Online TPP Program

#Question id: 2582

#Unit 2. Cellular Organization

Following statements are regarding to dynamics of actin filaments.

A. When the concentration of G-actin is above the Cc, the filament end will grow; when it is less than the Cc, the filament will shrink.

B. ATP–G-actin is added much faster at the (+) end than at the (−) end, resulting in a lower critical concentration at the (+) end than at the (−) end.

C. At steady state, actin subunits treadmill through a filament. ATP-actin is added at the (+) end, ATP is then hydrolyzed to ADP and Pi, Pi is lost, and ADP-actin dissociates from the (−) end.

D. ATP–G-actin is added much faster at the (-) end than at the (+) end, resulting in a lower critical concentration at the (-) end than at the (+) end.

E. At steady state, actin subunits treadmill through a filament. ATP-actin is added at the (-) end, ATP is then hydrolyzed to ADP and Pi, Pi is lost, and ADP-actin dissociates from the (+) end.

Which of the following statements are correct?
TLS Online TPP Program

#Question id: 2049

#Unit 4. Cell Communication and Cell Signaling

Which of the following statements is TRUE of immune responses?
TLS Online TPP Program

#Question id: 10725

#Unit 10. Ecological Principles

While studying the diversity of 3 communities, 5 species and 50 individuals were recorded from each community. The number of individuals under each species was listed as mentioned in the following Table.  


Which of the following is decreasing order of evenness of community?
TLS Online TPP Program

#Question id: 19797

#Unit 12. Applied Biology

 Which type of cry genes are used for the production of transgenic plants
TLS Online TPP Program

#Question id: 10682

#Unit 10. Ecological Principles

if 30 individuals of species 2 take up the same amount of resources as 5 individual of species 1 then the per capita competitive effects on species 1 of species 2 is