Question

Match the following:
$\begin{array}{cc}\text{Plant Growth Regulators}& \text{Functions}\\ \text{1.2,4-D}& \text{A.Used to speed up the malting process}\\ \text{2.Kinetin}& \text{B.Promotes cell division}\\ \text{3.GA3}& \text{C. Used as weedicide}\end{array}$

• A. 1-C, 2-B, 3-A
• B. 1-A, 2-B, 3-C
• C. 1-B, 2-A, 3-C
• D. 1-C, 2-A, 3-B

Answer 1

The correct option is A 1-C, 2-B, 3-A

2,4-D belongs to the category of auxins, a type of plant growth promoter. It is used as a weedicide (chemicals that destroy unwanted plants called weeds). It kills dicots but does not affect the monocots.

Kinetin belongs to the cytokinin group, a type of plant growth promoter. It was discovered from the autoclaved herring sperm DNA. It is a modified form of adenine. It does not occur naturally in plants. It mainly promotes cell division in plants.

GA3 is one of the first gibberellins discovered which are a type of plant growth promoters. It is used to speed up the malting process which is the process of converting barley or other cereals into malt (germinated cereals) in the brewing industry.