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5 Written questions

5 Matching questions

  1. Intracellular Receptors
  2. Plant Hormones
  3. Response
  4. Paracrine Signaling (local)
  5. Transuduction
  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 secreting cell acts on a nearby target cells by discharging molecules of a local regulator (a growth factor, etc.) into the extracellular fluid
  3. c transduction signal finally triggers some sort of response
  4. d found in either the cytoplasm or in the nucleus of target cells
    chemical signaling messengers must pass through the membrane to reach this receptor, so the chemical messengers are either hydrophobic, or small enough to cross the membrane (ex. steroid and thyroid hormones in animals)
  5. e also called plant growth regulators

5 Multiple choice questions

  1. process by which a signal on a cell's surface is converted to a specific cellular response
  2. protein kinase A
  3. enzyme that transfers phospate groups from ATP to a protein (these include many of the relay molecules in signal transuction pathways)
  4. plasma membrane receptors that are characterized by having enzymatic activity
  5. ATP

5 True/False questions

  1. ligandenzyme that catalyzes the transfer of phosphate groups

          

  2. apoptosis"controlled cell suicide" cells that are infected, damaged, or have reached the end of their functional life span

          

  3. Biofilmsaggregations of bacteria that often form recognizable structures containing regions of specialized function

          

  4. G protein-coupled receptorfound in either the cytoplasm or in the nucleus of target cells
    chemical signaling messengers must pass through the membrane to reach this receptor, so the chemical messengers are either hydrophobic, or small enough to cross the membrane (ex. steroid and thyroid hormones in animals)

          

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

          

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