Cell Signalling and Transduction Questions

• What is the name of the protein signaling molecule that alters glucose uptake, and where would its receptors be located?
• If a disease of the blood vessels caused the endothelial cells of the vessel to die, what effect would that have on the cellular activities associated with vasodilation?
• Which of the following is true about a hydrophilic signaling molecule?
• Why is it that inhaling nitric oxide reduces blood pressure only in the lung tissue and not elsewhere in the body*?
• SH2 domains specifically bind to
• Which of the following is a second messenger?
• The hormone or ligand can be considered as
• Cell signaling can be classified into
• The major second messengers are
• Simple nerve reflexes use signaling molecules called
• The binding of ligands to many G-proteins linked receptors leads to shortlived
• The enzyme that catalyzes the splitting of PIP2 into two molecules of inositol triphosphate (IP3) and diacylglycerol in cell signaling, is
• Which of the following statement is incorrect?
• In paracrine signaling, the signaling molecules affects only
• A signal cascade induced by adrenaline or thyroxine
• Self-phosphorylation is an excellent mechanism for triggering specific catalytic function of the proteins involved in signal cascades because it
• Which of the following is not a type of signaling molecule?
• When a __________ reaches its __________ , there is a specific means of receiving it and acting on the message. This task is the responsibility of specialized proteins called __________ .
• Nitroglycerin has long been administered to human patients suffering from chronic chest pain (angina). This medication works because it
• cAMP and cGMP are derived from