NURSING ANM AND GNM

Detailed explanation-1: -Enzymes are proteins comprised of amino acids linked together in one or more polypeptide chains. This sequence of amino acids in a polypeptide chain is called the primary structure. This, in turn, determines the three-dimensional structure of the enzyme, including the shape of the active site.

Detailed explanation-2: -Enzymes are mainly globular proteins-protein molecules where the tertiary structure has given the molecule a generally rounded, ball shape (although perhaps a very squashed ball in some cases).

Detailed explanation-3: -Trypsin: These enzymes break proteins down into amino acids in the small intestine. Lactase: Lactase breaks lactose, the sugar in milk, into glucose and galactose. Acetylcholinesterase: These enzymes break down the neurotransmitter acetylcholine in nerves and muscles. Helicase: Helicase enzymes unravel DNA.

Detailed explanation-4: -The enzyme pepsin, for example, is a critical component of gastric juices, helping to break down food particles in the stomach. Likewise, the enzyme amylase, which is present in saliva, converts starch into sugar, helping to initiate digestion. In medicine, the enzyme thrombin is used to promote wound healing.

Detailed explanation-5: -With the exception of ribozymes, all enzymes are protein-based.