Question

Which is true about enzyme composition?

		The majority of enzymes are globular proteins.
		The majority of enzymes are fibrous proteins.
		All enzymes are sphingo proteins.
		All enzymes are fibrous proteins.

Answer 1

Answer- The majority of enzymes are globular proteins.

Enzymes are mainly globular proteins and this is due to their tertiary structure which gives them a globular shape.

For an enzyme to catalyse a reaction, it needs to have an active site ( a deep cavity) wherein the substrate can bind. A lock and key mehanism.

Fibrous proteins have long thin structures and are generally found in tissues such as muscles and hair.

Sphingolipids are a class of lipids which have a backbone of long chain of spinghoid bases i.e aliphatic amino acids (Sphingosine).They are fatty acid derivatives and are usually found in the cell membrane of brain and nervous tissue.