Question

Match the following.
Diverse class of organic compounds Plant growth regulators

1) Indole compounds	i) Abscisic acid
2) Derivatives of carotenoids	ii) Ethylene
3) Terpenes	iii) IAA
4) Gases	iv) Gibberellic acid

• A. 1-iii, 2-i, 3-iv, 4-ii
• B. 1-ii, 2-i, 3-iv, 4-iii
• C. 1-i, 2-iii, 3-iv, 4-ii
• D. 1-iii, 2-i, 3-ii, 4-iv

Answer 1

The correct option is A 1-iii, 2-i, 3-iv, 4-ii

Plant growth regulators are simple and small chemical molecules that control the growth of the plants. Indole compounds, adenine derivatives, derivatives of carotenoids, terpenes, gases are different classes of organic compounds under which various plant growth regulators have been categorized.
Diverse class of organic compounds Plant growth regulators

1) Indole compounds	iii) IAA (Indole acetic acid)
2) Derivatives of carotenoids	i) Abscisic acid
3) Terpenes	iv) Gibberellic acid
4) Gases	ii) Ethylene