TLS Online TPP Program

#Question id: 10147


Which of the following enzymes is regulated by supramolecular assembly ?

#Unit 6. System Physiology – Plant
  1. Glyceraldehyde-3-Phosphate dehydrogenase and Phosphoribulokinase
  2. Phosphoglycerate kinase and Ribulose-1,5-bisphosphate carboxylase
  3. phosphoribulose epimerase and Phosphoglycerate kinase
  4. Fructose-1,6-bisphosphatase and Phosphoribulokinase
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TLS Online TPP Program

#Question id: 631

#Unit 1. Molecules and their Interaction Relevant to Biology

Two curves showing the rate versus substrate concentration are shown below for an enzyme-catalyzed reaction. One curve is for the reaction in the presence of substance X. The other curve is for data in the absence of substance X. Examine the curves and tell which statement below is false.

TLS Online TPP Program

#Question id: 630

#Unit 1. Molecules and their Interaction Relevant to Biology

In case of competitive inhibition, plots of Km against [Io] fixed [Eo] have

TLS Online TPP Program

#Question id: 629

#Unit 1. Molecules and their Interaction Relevant to Biology

In the presence of a fixed concentration of a competitive inhibitor, which of the following would best characterize an enzyme-catalyzed reaction when the concentration of the substrate is increased?

TLS Online TPP Program

#Question id: 628

#Unit 1. Molecules and their Interaction Relevant to Biology

At fixed substrate concentration, which of the following equation is correct for Dixon plot

TLS Online TPP Program

#Question id: 627

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following is correct ‘Dixon Plot’ for competitive inhibition for enzymes 

TLS Online TPP Program

#Question id: 626

#Unit 1. Molecules and their Interaction Relevant to Biology

A metabolic pathway proceeds according to the scheme, R -> S -> T -> U -> V -> W.  A regulatory enzyme, X, catalyzes the first reaction in the pathway.  Which of the following is most likely correct for this pathway?