Plant Hormones: Definition, Types, Function, Auxin

This is an MCQ-based quiz on the topic of Plant Hormones: Definition, Types, Function, Auxin

This includes What is Plant Hormones?, What are the main functions of plant hormones?, Auxin Hormone, Gibberellins Hormone, Cytokinins Hormone, Abscisic Acid Function, and many more.

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Which among the following is not the property of proteins present in the membrane that support facilitated diffusion?

Not liable to saturate Response to inhibitors Regulated by hormones Highly selective

This bioassay is used to detect the presence of auxin

Only tobacco pith culture Tobacco pith culture and Avena curvature test Tobacco pith culture and Split pea stem curvature test Split pea stem curvature test and Avena curvature test

This is the precursor of Indole-3-acetic acid

Methionine Tryptophan Glycine Isopentynyl pyrophosphate

Formation of the nodule is induced by

IAA NAA IBA Both (a) and (c)

Which of these hormone is not a growth inhibitor ?

Dormin Abscisic acid Ethylene IAA

The leaf defoliator utilized in the Vietnam war by the USA known as “Agent Orange” was ________.

2,4, -D and 2,4,5 – T Ethylene 2,4, -D and NAA 2,4,5 – T, ethylene and NAA

The leaf defoliator utilized in the Vietnam war by the USA known as “Agent Orange” was

2,4, -D and 2,4,5 – T Ethylene 2,4, -D and NAA 2,4,5 – T, ethylene and NAA

A widely used rooting hormone is

2,4, -D NAA 2,4,5 – T Cytokinin