NEET BIOLOGY

HUMAN PHYSIOLOGY

CONTROL AND COORDINATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which plant hormone promote growth of stem
A
Auxin
B
Gibberellins
C
Cytokinins
D
Abscisic
Explanation: 

Detailed explanation-1: -The plant hormone gibberellin (GA) controls major aspects of plant growth such as germination, elongation growth, flower development, and flowering time. In recent years, a number of studies have revealed less apparent roles for GA in a surprisingly broad set of developmental as well as cell biological processes.

Detailed explanation-2: -Gibberellins promote the formation of flowers on genetically plants in Cannabis whereas ethylene promotes formation of flowers on genetically plants.

Detailed explanation-3: -Auxin is a plant hormone that promotes growth. It is synthesized at the tip of the shot and on the stem apices and is also produced in the buds, stems and root tips. Auxin promotes cell elongation, helps in the growth of stems etc.

Detailed explanation-4: -Gibberellins are plant growth regulators that facilitate cell elongation, help the plants to grow taller. They also play major roles in germination, elongation of the stem, fruit ripening and flowering.

Detailed explanation-5: -Gibberellin (GA) is a plant hormone regulating key processes in plants; many of them are of significant agricultural importance, such as seed germination, root and shoot elongation, flowering, and fruit patterning.

There is 1 question to complete.