In the G protein associated signal cascade system, binding of hormone to a cell surface receptor, like the 7TM (a 7 transmembrane alpha helices) which is a part of G protein. This will activate production of second messengers like cAMP by the enzyme adenylate cyclase. The cAMP in turn binds and activates down stream signal proteins line cAMP dependent protein kinase A (PKA).

Correct Option: A

In the G protein associated signal cascade system, binding of hormone to a cell surface receptor, like the 7TM (a 7 transmembrane alpha helices) which is a part of G protein. This will activate production of second messengers like cAMP by the enzyme adenylate cyclase. The cAMP in turn binds and activates down stream signal proteins line cAMP dependent protein kinase A (PKA).

Digestion of cell wall → protoplast viability → cybrid formation → osmotic stabilizer

Correct Option: B

Digestion of cell wall → protoplast viability → cybrid formation → osmotic stabilizer

The plot of swelling of protoplasts and bursting during endosmosis when protoplasts are kept or placed in distilled water is a sigmoidal curve where number of intact protoplasts decrease with time. So, the plot is represented by graph in (a).

Correct Option: A

The plot of swelling of protoplasts and bursting during endosmosis when protoplasts are kept or placed in distilled water is a sigmoidal curve where number of intact protoplasts decrease with time. So, the plot is represented by graph in (a).

The cytokinetic organelle in plant cells is Phragmoplast.

Correct Option: B

The cytokinetic organelle in plant cells is Phragmoplast.

MTT- binds to succinate dehydrogenase Annexin
V-specifically binds to phosphatidyl serine Methotrexate- allosterically inhibits dihydrofolate reductase
Taxol-suppresses microtubule dynamics.

Correct Option: B

MTT- binds to succinate dehydrogenase Annexin
V-specifically binds to phosphatidyl serine Methotrexate- allosterically inhibits dihydrofolate reductase
Taxol-suppresses microtubule dynamics.