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5 Written questions

5 Matching questions

  1. ligand-gated ion channel
  2. apoptosis
  3. protein phosphates
  4. Receptor tyrosine kinases
  5. Hormonal Signaling (long-distance)
  1. a type of membrane receptor containing a region that can act as a "gate" when the receptor changes shape
    when the signaling molecule bindsas a ligand to the receptor protein, the gate opens or closes, allowing or blocking the flow of specific ions
  2. b Specialized endocrine cells secrete hormones into body fluids (often the blood)
  3. c "controlled cell suicide" cells that are infected, damaged, or have reached the end of their functional life span
  4. d enzymes that can rapidly remove phophate groups from proteins (a process called dephosphorylation)
  5. e plasma membrane receptors that are characterized by having enzymatic activity

5 Multiple choice questions

  1. protein kinase A
  2. a molecule that specificlly binds to another molecule, often a larger one
  3. enzyme that catalyzes the transfer of phosphate groups
  4. A chemical signal is detected when signaling molecule binds to a receptor protein located at the cell's surface or inside the cell
  5. ATP

5 True/False questions

  1. Plant Hormonesalso called plant growth regulators

          

  2. Responsetransduction signal finally triggers some sort of response

          

  3. scaffolding proteinslarge relay proteins to which other proteins are simultaneously attached

          

  4. Paracrine Signaling (local)A nerve cell releases neurotransmitter molecules into the synapse, stimulating the target cell

          

  5. Intracellular Receptorsplasma membrane receptor that works with the help of a G protein
    used by yeast mating factors, epinephrine, other hormones and neurotransmitters
    NOT enzymes
    G-protein is active when bound to a GTP