Concept Matching Signal that binds to receptors on the cells that secrete them Signal that binds to receptors on nearby cells A hormone that stimulates blood pressure and glycogen breakdown "Gate" in a membrane that allows certain molecules to enter or leave the cell Protein that catalyzes the transfer of a phosphate group from ATP to a protein The interaction between receptor binding and cellular reaction Substances released into the cytoplasm after the signal binds its receptor A membrane protein involved in signal transduction that is characterized by binding GDP or GTP Signal that bind to adjacent cells Autocrine signal Ion channel Protein kinase Epinephrine Juxtacrine signals Second messenger G proteins Paracrine signal Transduction
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Step 1: The signal that binds to receptors on the cells that secrete them is called autocrine signal. Show more…
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When a cell releases a signal molecule into the environment and a number of cells in the immediate vicinity respond, this type of signaling is a. typical of hormones. b. autocrine signaling. c. paracrine signaling. d. endocrine signaling. e. synaptic signaling. 7. The receptors for a group of signaling molecules known as growth factors are often a. ligand-gated ion channels. b. G-protein-linked receptors (GPCR). c. cyclic AMP (cAMP) d. receptor tyrosine kinases (Trk). e. neurotransmitters. 8. Binding of a signaling molecule to which type of receptor leads directly to a change in distribution of ions on opposite sides of the membrane? a. receptor tyrosine kinase b. G protein-coupled receptor c. phosphorylated receptor tyrosine kinase dimer d. ligand-gated ion channel e. intracellular receptor
Sri K.
Give an example for each one of the following effects of a cell signal: on protein expression, cellular metabolism, and cell division. a. protein expression: binding of epinephrine (adrenaline) to a G-protein-linked receptor; cellular metabolism: the MAP-kinase cascade; cell division: promoted by the binding of the E G F to its receptor tyrosine kinase b. protein expression: the MAP-kinase cascade; cellular metabolism- binding of epinephrine (adrenaline) to a G-protein-linked receptor; cell division promoted by the binding of the EGF to its receptor tyrosine kinase c. protein expression: binding of the E G F to its receptor tyrosine kinase; cellular metabolism: the MAP-kinase cascade; cell division: FASRAS signaling. d. protein expression: RAS signaling; cellular metabolism: binding of the EGF to its receptor tyrosine kinase promotes an increase; cell division: binding of epinephrine (adrenaline) to a G-protein-linked receptor.
The function of a ________ is to add phosphates to proteins, whereas a _________ functions to remove the phosphates. a. tyrosine; serine b. protein phosphatase; protein dephosphatase c. protein kinase; protein phosphatase d. receptor; ligand
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