Asked by Daniel Sarver on May 14, 2024
Verified
Describe the part of the cell where polar and nonpolar signaling molecules bind to their respective receptor. Explain your reasoning.
Polar Signaling Molecules
Molecules that are involved in the transmission of signals across cell membranes and can interact with polar environments due to their electrical charge.
Nonpolar Signaling Molecules
Chemical messengers that are hydrophobic and can diffuse directly through the lipid bilayer of cell membranes to elicit a response within the cell.
- Identify the differences in roles played by signaling molecules versus those of pathways in the context of cell-to-cell communication.
Verified Answer
LS
Lovely ShunniMay 15, 2024
Final Answer :
Polar signaling molecules bind membrane receptors whereas nonpolar bind cytoplasmic receptors. Polar signaling molecules are hydrophilic and cannot cross the plasma membrane. Nonpolar signal molecules are hydrophobic and are able to cross the plasma membrane to bind a cytoplasmic receptor.
Learning Objectives
- Identify the differences in roles played by signaling molecules versus those of pathways in the context of cell-to-cell communication.
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