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ASU Bio 181 Esqueda Exam 2 Questions and Correct Answers the Latest Update and Recommended Version $11.49   Add to cart

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ASU Bio 181 Esqueda Exam 2 Questions and Correct Answers the Latest Update and Recommended Version

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  • Course
  • ASU Bio 181
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  • ASU Bio 181

quorum sensing • The ability of bacteria to sense the presence of other bacteria via secreted chemical signals. receptor protein • Membrane protein that triggers a change in cell activity after binding to a particular substance. signaling molecules • ligands, neurotransmitters, phero...

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  • October 21, 2024
  • 15
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • ASU Bio 181
  • ASU Bio 181
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ASU Bio 181 Esqueda Exam 2
Questions and Correct Answers the
Latest Update and Recommended
Version
quorum sensing


• The ability of bacteria to sense the presence of other bacteria via secreted chemical
signals.


receptor protein

• Membrane protein that triggers a change in cell activity after binding to a particular
substance.


signaling molecules

• ligands, neurotransmitters, pheromones, hormones: bind to receptors


intercellular communication

• "between cells"


intracellular communication

• "within cells"


small hydrophobic ligands

• directly diffuse through the plasma membrane and interact with internal receptors


hydrophobic ligands

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• water soluble and polar, usually large and won't cross the plasma membrane, bind to
extracellular receptors


Other Ligands

• small, non polar, short-half life, can only travel short distances


internal receptors

• (intracellular receptors and cytoplasmic receptors) respond to hydrophobic ligands that
cross plasma membrane


cell surface receptors


• (transmembrane receptors, membrane anchored proteins) bind to external ligands,
along the plasma membrane


signal transduction

• extracellular signals produce an intracellular response


ion channel linked receptors

• binding of ligand on extracellular side causes opening of an ion channel and lets ions
into the cell


g-protein linked receptors


• ligands bind to a receptor which activates a G protein causing the release of a second
messenger such as cAMP


enzyme linked receptors




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