Question

Discuss the location and importance of cell membrane receptor molecules.

a) Receptor molecules are found in the cytoplasm and are not crucial for cell function.
b) Receptor molecules are located in the cell nucleus and regulate gene expression.
c) Receptor molecules are in the cell membrane and play a key role in cell signaling.
d) Receptor molecules are present in the mitochondria and produce energy for the cell.

Answer 1

Cell membrane receptor molecules are located in the cell membrane and play a key role in cell signaling. They are crucial for normal cell functioning and errors in their structure can lead to diseases.

Step-by-step explanation:

Cell membrane receptor molecules are located in the cell membrane and play a key role in cell signaling. These receptors span the plasma membrane and perform signal transduction, converting an extracellular signal into an intracellular signal. Ligands can interact with these receptors on the cell surface without entering the cell. They are crucial for normal cell functioning and errors in their structure can lead to various diseases.