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5 Written questions

5 Matching questions

  1. scaffolding proteins
  2. Plant Hormones
  3. Receptor tyrosine kinases
  4. kinase
  5. Paracrine Signaling (local)
  1. a large relay proteins to which other proteins are simultaneously attached
  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 enzyme that catalyzes the transfer of phosphate groups
  4. d also called plant growth regulators
  5. e plasma membrane receptors that are characterized by having enzymatic activity

5 Multiple choice questions

  1. a molecule that specificlly binds to another molecule, often a larger one
  2. concentration of signaling molecules allowing bacteria to sense the local density of other bacterial cells
  3. enzymes that can rapidly remove phophate groups from proteins (a process called dephosphorylation)
  4. control which genes are turned on (which gense are transcribed to mRNA) ex. testosterone
  5. A nerve cell releases neurotransmitter molecules into the synapse, stimulating the target cell

5 True/False questions

  1. G protein-coupled receptorplasma 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

          

  2. What is the source of phophate in a phosphorylation cascade?enzymes that can rapidly remove phophate groups from proteins (a process called dephosphorylation)

          

  3. second messengersconcentration of signaling molecules allowing bacteria to sense the local density of other bacterial cells

          

  4. cAMP usually direclty activates...?plasma membrane receptors that are characterized by having enzymatic activity

          

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

          

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