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5 Written questions

5 Matching questions

  1. scaffolding proteins
  2. Hormonal Signaling (long-distance)
  3. kinase
  4. ligand
  5. Receptor tyrosine kinases
  1. a Specialized endocrine cells secrete hormones into body fluids (often the blood)
  2. b enzyme that catalyzes the transfer of phosphate groups
  3. c plasma membrane receptors that are characterized by having enzymatic activity
  4. d large relay proteins to which other proteins are simultaneously attached
  5. e a molecule that specificlly binds to another molecule, often a larger one

5 Multiple choice questions

  1. protein kinase A
  2. ATP
  3. 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
  4. 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
  5. secreting cell acts on a nearby target cells by discharging molecules of a local regulator (a growth factor, etc.) into the extracellular fluid

5 True/False questions

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

          

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

          

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

          

  4. Plant Hormonesalso called plant growth regulators

          

  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