Cell Signalling and Transduction The signaling molecules called steroid hormones are hydrophilic and so cannot penetrate the plasma membrane bind to cell surface receptors to trigger chemical cascades never enter the blood of humans are made in one location of the body but have their effects some distance away are hydrophilic and so cannot penetrate the plasma membrane bind to cell surface receptors to trigger chemical cascades never enter the blood of humans are made in one location of the body but have their effects some distance away ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction In paracrine signaling, the signaling molecules affects only both (a) and (b) target cells close to the cell from which it was secreted None of these target cells distant from its site of synthesis in cells of an endocrine organ both (a) and (b) target cells close to the cell from which it was secreted None of these target cells distant from its site of synthesis in cells of an endocrine organ ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction In vasodilation, proper nerve signals sent to blood vessels cause relaxation of smooth muscle cells reduced blood pressure All of these the release of nitric oxide from endothelial cells relaxation of smooth muscle cells reduced blood pressure All of these the release of nitric oxide from endothelial cells ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Simple nerve reflexes use signaling molecules called neurotransmitters proteases nitric oxides G proteins neurotransmitters proteases nitric oxides G proteins ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Small charged molecules, often biogenic amines function as hormones both (a) and (b) neurotransmitters none of these hormones both (a) and (b) neurotransmitters none of these ANSWER DOWNLOAD EXAMIANS APP
Cell Signalling and Transduction Which of the following is a hormone whose action requires a cell surface receptor? Progesterone Nitric oxide Growth factors Adrenaline Progesterone Nitric oxide Growth factors Adrenaline ANSWER DOWNLOAD EXAMIANS APP
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