NEET BIOLOGY

Detailed explanation-1: -Answer and Explanation: The type of protein that detects a signal molecule and induces a signal Cascade in response is a cellular receptor.

Detailed explanation-2: -Receptor-a protein that detects a signal molecule and performs an action in response.

Detailed explanation-3: -Cells have proteins called receptors that bind to signaling molecules and initiate a physiological response. Different receptors are specific for different molecules.

Detailed explanation-4: -Protein Organization Protein’s structure enables it to perform a variety of functions. There are four different structural levels of proteins (Figure 1.5): Primary structure-This is the one-dimensional polypeptide chain of amino acids, held together by peptide bonds.

Detailed explanation-5: -Receptor proteins act like enzymes by binding an extracellular molecule leading to the activation of the intracellular process. Also, they act like enzymes because they have specified sites for substrates. Receptor proteins promote communication between the extracellular environment and the cell.