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Questions and Answers
What are the three main components involved in cell signaling?
What are the three main components involved in cell signaling?
- The transmitter, the mediator, and the responder
- The signal, the receptor, and the effector (correct)
- The messenger, the transporter, and the receiver
- The signal, the inhibitor, and the activator
Which of the following can be considered as a physical cue in cell signaling?
Which of the following can be considered as a physical cue in cell signaling?
- Lipid
- Glucose
- Protein
- Pressure (correct)
What are chemical signals in cell signaling mostly composed of?
What are chemical signals in cell signaling mostly composed of?
- Mechanical vibrations
- Sound waves
- Molecules with the ability to bind and activate a specific receptor (correct)
- Electrical impulses
Which class of chemicals do most hormones belong to in cell signaling?
Which class of chemicals do most hormones belong to in cell signaling?
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What are peptides in cell signaling usually characterized as?
What are peptides in cell signaling usually characterized as?
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Study Notes
Cell Signaling Components
- Three main components involved in cell signaling: receptors, signal transduction pathways, and effectors
- Receptors: recognize and respond to signals, located on cell surface or within cells
- Signal transduction pathways: series of molecular changes that transmit signal from receptor to effector
- Effectors: carry out response to signal, can be enzymes, ion channels, or transcription factors
Physical Cues in Cell Signaling
- Physical cues in cell signaling include: touch, vibration, light, temperature, and voltage
Chemical Signals in Cell Signaling
- Chemical signals in cell signaling mostly composed of: neurotransmitters, hormones, and growth factors
- Most hormones belong to the class of: proteins or steroids
- Peptides in cell signaling usually characterized as: short chains of amino acids
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