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Course: AP??/College Biology?>?Unit 4
Lesson 2: Signal transduction- Membrane Receptors
- Ligands & receptors
- G Protein Coupled Receptors
- Signal relay pathways
- Cellular mechanism of hormone action
- Response to a signal
- Example of a signal transduction pathway
- Cell signaling in yeast reproduction
- Cell-cell signaling in unicellular organisms
- Signal transduction
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Signal transduction
Problem
Acetylcholine is a neurotransmitter that helps control muscle contraction. This neurotransmitter functions differently depending on which type of muscle it interacts with. For example, acetylcholine promotes muscle contraction in skeletal muscle but inhibits contraction in heart muscle.
Which of the following best explains why acetylcholine leads to different cellular responses in skeletal and heart muscle?