Cell Signalling and Transduction The hormone or ligand can be considered as both (a) and (b) first messenger none of these second messenger both (a) and (b) first messenger none of these second messenger ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Why is it that inhaling nitric oxide reduces blood pressure only in the lung tissue and not elsewhere in the body*? None of these Because nitric oxide breaks down quickly and thus cannot travel far Because other body tissues use a different signaling molecule Because nitric oxide cannot cross cell membranes and enter the blood None of these Because nitric oxide breaks down quickly and thus cannot travel far Because other body tissues use a different signaling molecule Because nitric oxide cannot cross cell membranes and enter the blood ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following is not a type of signaling molecule? Insulin Thyroxin Adenylate cyclase Testosterone Insulin Thyroxin Adenylate cyclase Testosterone ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction The binding of ligands to many G-proteins linked receptors leads to shortlived decrease in the concentration of certain extracellular signaling molecules called first messenger increase in the concentration of certain intracellular signaling molecules called second messenger decrease in the concentration of certain intracellular signaling molecules called second messenger increase in the concentration of certain extracellular signaling molecules called first messenger decrease in the concentration of certain extracellular signaling molecules called first messenger increase in the concentration of certain intracellular signaling molecules called second messenger decrease in the concentration of certain intracellular signaling molecules called second messenger increase in the concentration of certain extracellular signaling molecules called first messenger ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction In vasodilation, proper nerve signals sent to blood vessels cause the release of nitric oxide from endothelial cells reduced blood pressure All of these relaxation of smooth muscle cells the release of nitric oxide from endothelial cells reduced blood pressure All of these relaxation of smooth muscle cells ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Two key organizing principles for large multicellular organisms are prokaryotic cell structure and cell specialization communication between cells and simple nerve reflexes simple nerve reflexes and cell specialization cell specialization and communication between cells prokaryotic cell structure and cell specialization communication between cells and simple nerve reflexes simple nerve reflexes and cell specialization cell specialization and communication between cells ANSWER DOWNLOAD EXAMIANS APP