Question

Which is incorrectly matched?
(A)Adenine derivative - Kinetin
(B)Terpenes - IAA
(C)Carotenoid derivative - ABA
(D)Indole compounds - IBA

Answer 1

Hint: The above option which is incorrectly matched is that one which has aromatic compounds found in many plants, though many people commonly associate them with cannabis because cannabis plants contain high concentrations of them.

Complete answer:
 Terpenes – IAA is incorrectly matched. Kinetin is a sort of cytokinin, a phytohormone. Cytokinin is an adenine derivative. Cytokinin will help in the division of the cell. Gibberellin is a terpene chemically. Gibberellin will help in stem elongation, germination, and overcome genetic dwarfism. Abscisic acid is a phytohormone which is a carotenoid derivative. It causes the abscission of leaves. It's also called a stress hormone. IBA (indoleacetic acid) is an indole compound. it's a phytohormone which acts as a growth promoter.

Additional Information: Terpenes are the main components of rosin and of turpentine produced from resin. they're also major biosynthetic building blocks. Steroids are derivatives of the triterpene squalene.
Terpenes and their derivatives are known to be the first constituents of the important oils of the many varieties of plants and flowers. Essential oils are used widely as fragrances in perfumery and traditional medicine, like aromatherapy. Synthetic variations and the derivatives of natural terpenes are also present which will greatly expand the variety of aromas that are mostly used in the perfumery and flavors utilized in food additives. The provitamin beta carotene may be a terpene derivative called a carotenoid.
So, the correct answer is ‘Terpenes - IAA’.

Note: In the year 1866 the term "terpene" was coined by the German chemist August Kekulé.Although sometimes used interchangeably with "terpenes", terpenoids (or isoprenoids) are modified terpenes that contain additional functional groups, usually oxygen-containing. The name "terpene" is a shortened sort of "turpentine", an obsolete spelling of "turpentine".