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5 Written questions

5 Matching questions

  1. cAMP usually direclty activates...?
  2. Transuduction
  3. Biofilms
  4. Synaptic Signaling (local)
  5. scaffolding proteins
  1. a Binding of the signaling molecule changes the receptor protein in some way, initating the conversion of a signal to a form to a form that can bring about a specific cellular response
  2. b A nerve cell releases neurotransmitter molecules into the synapse, stimulating the target cell
  3. c large relay proteins to which other proteins are simultaneously attached
  4. d protein kinase A
  5. e aggregations of bacteria that often form recognizable structures containing regions of specialized function

5 Multiple choice questions

  1. enzyme that transfers phospate groups from ATP to a protein (these include many of the relay molecules in signal transuction pathways)
  2. concentration of signaling molecules allowing bacteria to sense the local density of other bacterial cells
  3. ATP
  4. secreting cell acts on a nearby target cells by discharging molecules of a local regulator (a growth factor, etc.) into the extracellular fluid
  5. plasma 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

5 True/False questions

  1. ligand-gated ion channeltype 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. transcription factorsBinding of the signaling molecule changes the receptor protein in some way, initating the conversion of a signal to a form to a form that can bring about a specific cellular response

          

  3. ReceptionA chemical signal is detected when signaling molecule binds to a receptor protein located at the cell's surface or inside the cell

          

  4. liganda molecule that specificlly binds to another molecule, often a larger one

          

  5. protein phosphatesenzyme that transfers phospate groups from ATP to a protein (these include many of the relay molecules in signal transuction pathways)

          

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