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Which of the following are the basic categories of chemical signaling found in multicellular organisms? - All of the aboveCell signaling is __________ - Both (a) and (b)Which of the following signaling is involved in Paracrine signaling? - Chemical signalingWhich of the following statements is true about cell signaling? - All of the aboveWhich of the following signal molecules is not used for extracellular signaling? - Cyclic AMPWhich of the following signal molecules does not interact with cell surface receptors? - TestosteroneWhich of the following G-protein takes part in the regulation of vision? - Gi familyThe signaling pathway, followed by T-lymphocytes in response to antigenic stimulation, is _______ - Autocrine signalingExtracellular signaling in animals is carried out by _________. - All of the aboveHow many types of cell signalings are there? - FourWhich of the following statements is true about the paracrine messenger molecules? - The messenger molecules are unstableWhich of the following messenger molecules are derived from arachidonic acid? - EicosanoidsHow many transmembrane alpha-helices are present in the G-protein coupled receptors? - SevenSteroids, a biologically active organic compound, are derived from ______. - CholesterolWhich of the following signaling molecules are used by simple nerve reflexes? - NeurotransmittersWhich of the following statements is not true about G proteins? - G proteins become activated when bound to GDPWhich of the following is a cell surface receptor? - All of the aboveWhich of the following statements is true about cell signaling? - In multicellular organisms, cell communicate using hormonesThe hormone, also called the ligand is considered as_________. - First messengerWhich of the following hormones requires a cell surface receptor for its action? - Adrenaline
