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TLS Online TPP Program

#Question id: 2008

An immune response to a tissue graft will differ from an immune response to a bacterium because

#Section 2: General Biology

  1. MHC molecules of the donor may stimulate rejection of the graft tissue.

  2. the tissue graft, unlike the bacterium, is isolated from the circulation and will not enter into an immune response.

  3. a response to the graft will involve T cells and a response to the bacterium will not.

  4. a bacterium cannot escape the immune system by replicating inside normal body cells.

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TLS Online TPP Program

#Question id: 414

#Section 2: General Biology

The hydrolysis of phosphoenolpyruvate proceeds with a DG'° of about –62 kJ/mol. The greatest contributing factors to this reaction are the destabilization of the reactants by electostatic repulsion and stabilization of the product pyruvate by:
TLS Online TPP Program

#Question id: 1896

#Section 2: General Biology

The single best description of an allergen is that it is:
TLS Online TPP Program

#Question id: 23181

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

__________ type of biosensors exist to measure the concentration and location of Ca2+ and the activation state of GTPase switch proteins.
TLS Online TPP Program

#Question id: 3773

#Section 3: Genetics, Cellular and Molecular Biology

DNA contains the template needed to copy itself, but it has no catalytic activity in cells. What catalyzes the formation of phosphodiester bonds between adjacent nucleotides in the DNA polymer being formed during DNA replication?
TLS Online TPP Program

#Question id: 17916

#Section 4: Fundamentals of Biological Engineering

The rate limiting step in the movement of oxygen from the gas phase in a bubble to the cell is the movement of oxygen molecules through