Question

Which of the following statements is false? O Most enzymes are proteins. Enzymes are biological catalysts that speed up reactions O a single type of enzyme can facilitate many different types of reactions O Enzymes can be denatured at extremes of temperatre and pH.

Answer 1

the aure Protien Berzelius coined term protien protien heteropalymer of amino acid. Tuvo amino acid can join throught the amino group of one and Carboxylic group of the other amino acid acid forming anhydro bond (Co-NH linkage) also khown peptide bound by the loss of noder malecule. an Structer of pratich cure are The four levels of protien structer an 1- Primary structure - The primary structure of a protich is its linear chain amino acid. These amino acid Connected via Peptide bond. its provided the positional information of amino acid a protien. The first amino acid of the chain is known as N- Terminal amino acid with its unbounded amino group. the last C-terminal amino acid with un One as it Unbounded Tooh group.

to Secondary structure The lorger polypeptide chain are usually falded or coiled Produce specific structures referred as Secondary. Structer. there structer are produced and maintained by hydrogen bond. major type of Secondary structer. - helix, B - Pleated sheet tropocallagen helix. 3. Tertiary structure Three and tropocollagen overall slope of The polypeptide chain may undergo further coiling produce the 3-dimensional Structer of Pratien. in this structer coiling involved only a single polypeptide chain. The tertiary structure determine the pration malecale. Pration called fibrous Protien. When they form this, Jong thread and protien if they are compact these Structer Stabilized by several type of bord homely hydrogen bond, ionic bond, vander walls interaction, covalent bond and hydrophobic bondo are globular are

size and is the Rolien Jorge set of molewle to which enzyme belong as subsets. • Protien are diverse are biological macromdeule that in shape funtion. most enzyme are protien except Ribozyme Ereymes are molecules that facilitate reaction in a living cell without undergoing to much ie. these are biological catalysts. change a are other biological macromolecule like sugar and fats Jess suited for such funtion. changes in pH affect the chemitry of amino acid residues and can lead to de naturation. Hydrogen bonding often involves these side changes. protonation amiro ocid residue (when an acidic proton it attaches) to a Jone pair of electrons on hitrogen changes. whether or not they participate in hydrogen bond so change in the pH, temperature of the a can de nature a protien can facilitate may Ans - A single type of enzyme different type of reaction