TLS Online TPP Program

#Question id: 1098


Which of the following is the most plausible explanation for why an animal cell would be unable to reduce the Ca2+ concentration in its cytosol compared with the extracellular fluid?

#Unit 4. Cell Communication and Cell Signaling
  1. inactivation of calcium-gated ion channels in the cell membrane

  2. excessive transport of calcium from the cytosol into the endoplasmic reticulum

  3. insufficient ATP levels in the cytosol

  4. insufficient levels of protein kinase in the cell

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TLS Online TPP Program

#Question id: 843

#Unit 1. Molecules and their Interaction Relevant to Biology

_______ enzymes that catalyze isomerization reactions in folding pathways of some proteins.

TLS Online TPP Program

#Question id: 844

#Unit 1. Molecules and their Interaction Relevant to Biology

It is a given set of conditions that are required  for the maintenance of the active set of cellular proteins

TLS Online TPP Program

#Question id: 846

#Unit 1. Molecules and their Interaction Relevant to Biology

The maintenance of the steady-state collection of active cellular proteins required under a particular set of conditions, called ______.

TLS Online TPP Program

#Question id: 849

#Unit 1. Molecules and their Interaction Relevant to Biology

The rigidity of the peptide unit and the restricted set of allowed phi and psi angles limits the number of structures accessible to the unfolded form sufficiently to allow:-

TLS Online TPP Program

#Question id: 850

#Unit 1. Molecules and their Interaction Relevant to Biology

The experimental inverse of protein structure prediction, has provided insights into protein folding and stability. Protein design attempts to construct an amino acid sequence that will form a structure such as a sandwich of β sheets or a bundle of α helices;

TLS Online TPP Program

#Question id: 851

#Unit 1. Molecules and their Interaction Relevant to Biology

Methods is the Rosetta program, formulated by David Baker. To satisfy the program’s computational needs, a volunteer network of ∼100,000 computers, known as Rosetta@home, provides the 500,000 or so hours of processing time required to generate a structure;