TLS Online TPP Program

#Question id: 1376


Which of the following statements is NOT TRUE about gap junctions?

#Unit 4. Cell Communication and Cell Signaling
  1. Gap junctions have some functionality of permitting cells to adhere to one another.

  2. Gap junctions form channels that are comprised of connexin proteins.

  3. Gap junctions permit the travel of small molecules back and forth between adjacent cells.

  4. Gap junctions prevent molecules and ions from traveling between cells in the extracellular space.

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TLS Online TPP Program

#Question id: 23598

#Unit 1. Molecules and their Interaction Relevant to Biology

If A + B means B is the brother of A; A ×B means B is the husband of A; A −B means A is the mother of B and A%B means A is the father of B, which of the following relations shows that Q is the grandmother of T?

TLS Online TPP Program

#Question id: 22017

#Unit 1. Molecules and their Interaction Relevant to Biology

The Hanes plot (devised by Charles Hanes) obtained by using Lineweaver-Burk equation by 

TLS Online TPP Program

#Question id: 653

#Unit 1. Molecules and their Interaction Relevant to Biology

For the enzyme-catalyzed reaction S ~ P, Keq = 5, which of the following curves best represents the change in [S] that occurs with time when S is added to a solution containing the appropriate enzyme?

TLS Online TPP Program

#Question id: 652

#Unit 1. Molecules and their Interaction Relevant to Biology

Two proteins, X and Y, bind to the same ligand, A, with the binding curves shown below. Which of the statement is correct for the graph analysing two proteins?

TLS Online TPP Program

#Question id: 651

#Unit 1. Molecules and their Interaction Relevant to Biology

Consider an enzyme catalysed reaction treated with inhibitor. Enzyme kinetic was analysed with Eadie Hofstee equation. A plot of V0 versus V0/[S] for an enzyme-catalyzed reaction is shown below. The control curve was obtained in the absence of inhibitor. Which effect is shown on the enzyme activity when an inhibitor is added to the reaction mixture?

TLS Online TPP Program

#Question id: 650

#Unit 1. Molecules and their Interaction Relevant to Biology

On the basis of hypothetical binding curve given below, which of the following statement is INCORRECT