BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Their tertiary structure gives proteins a very specific shape and is an important feature in the ‘lock and key’ function of enzymes, or receptor sites on cell membranes. Specificity can vary, in some cases sites can allow some variation in structure in other cases not.

Detailed explanation-2: -Tertiary structure is the most important of the structural levels in determining, for example, the enzymatic activity of a protein.

Detailed explanation-3: -Tertiary structure refers to the overall folding of the entire polypeptide chain into a specific 3D shape. The tertiary structure of enzymes is often a compact, globular shape. Tertiary structure of the triose phosphate isomerase (TPI) molecule. Many proteins are formed from more than one polypeptide chain.

Detailed explanation-4: -Enzymes are functional proteins which are used to catalyse reactions. They all exhibit primary, secondary and tertiary structure, and some which have more than one polypeptide chain have quaternary structure (such as pyruvate dehydrogenase, an enzyme in the link reaction of respiration).

Detailed explanation-5: -Answer and Explanation: The tertiary structure of the enzyme is important for the functionality of enzymes. This is the three-dimensional structure of enzymes and has free functional groups by which enzymes attach to substrate molecules.