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TLS Online TPP Program

#Question id: 13163

Following statements are regarding to the interaction between β2-adrenergic receptor and G- protein.

#Unit 4. Cell Communication and Cell Signaling
  1. Binding of ligand to the receptor induces major conformational changes in which there are substantial movements of transmembrane helices 5 and 6 and changes in the structure of the C3 loop; together, these changes create a surface that can bind to a segment of the Gα subunit and when unbound by ligand, the receptor has no surface that is complementary to the G protein and thus cannot bind to it.
  2. Binding of ligand to the receptor induces major conformational changes in which there are substantial movements of transmembrane helices 1 and 4 and changes in the structure of the C3 loop; together, these changes create a surface that can bind to a segment of the Gα subunit and when unbound by ligand, the receptor has no surface that is complementary to the G protein and thus cannot bind to it.
  3. Binding of ligand to the receptor induces major conformational changes in which there are substantial movements of transmembrane helices 5 and 6 and changes in the structure of the C3 loop; together, these changes have no surface that can’t bind to a segment of the Gα subunit and when unbound by ligand, the receptor creates a surface that is complementary to the G protein and thus can bind to it.
  4. Binding of ligand to the receptor induces major conformational changes in which there are substantial movements of transmembrane helices 3, 5, 6 and 7 and changes in the structure of the E2 loop; together, these changes create a surface that can bind to a segment of the Gα subunit and when unbound by ligand, the receptor has no surface that is complementary to the G protein and thus cannot bind to it.
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TLS Online TPP Program

#Question id: 27406

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following enzymes that catalyze the hydrolysis of stored triacylglycerols, releasing fatty acids for export to sites where they are required as fuel
TLS Online TPP Program

#Question id: 20027

#Unit 13. Methods in Biology

The technique which are based on the precipitation reaction in the fluids and in the gels are,
TLS Online TPP Program

#Question id: 11991

#Unit 10. Ecological Principles

The success with which plants extend their range northward following glacial retreat is best determined by
TLS Online TPP Program

#Question id: 21142

#Unit 12. Applied Biology

Some given Polyketide drugs except__
TLS Online TPP Program

#Question id: 7577

#General Aptitude

Two cyclists do the same journey by travelling at 9 km/hr and 10 km/hr respectively. Find the distance travelled when one takes 32 minutes longer than the other.