Question

What is the functions ofor plant hormone

Answer 1

Explanation:

Plant hormones are known as phytohormones in botanical terms. They are chemicals just like animal hormones that help in the growth, development, and functioning of plants. Like animals, plants too are living organisms that function as a unit. They carry out vital biochemical reactions that are required to survive

Answer 2

Functions of plant hormones:

${ \red{ \bf{ Auxins: }}}$

${ \green{ \bf{ Site\: of \: Synthesis:}}}$

Synthesized primarily in shoot apical meristems and young leaves.

${ \green{ \bf{ Functions: }}}$

Promote cell elongation.

Suppress the growth of lateral buds.

Delay fall of leaves.

Induce formation of parthenocarpic fruits.

${ \red{ \bf{Gibberellins: }}}$

${ \green{ \bf{ Site\: of \: Synthesis:}}}$

Synthesized primarily in the meristems of apical buds and roots.

${ \green{ \bf{ Functions: }}}$

Help in stem-elongation.

Break dormancy of seeds and buds.

Delay senescence.

Induce parthenocarpy.

${ \red{ \bf{ Cytokinins: }}}$

${ \green{ \bf{ Site\: of \: Synthesis:}}}$

Synthesized primarily in roots and transported to other organs.

${ \green{ \bf{ Functions: }}}$

Stimulate cell-division and cell enlargement.

Prevent ageing of plant parts.

Inhibit apical dominance.

${ \red{ \bf{ Ethylene:}}}$

${ \green{ \bf{ Site\: of \: Synthesis:}}}$

Synthesized in senescent leaves and flowers, germinating seeds and ripening fruits.

${ \green{ \bf{Functions: }}}$

Induces fruit ripening.

Promotes senescence.

${ \red{ \bf{ Abscisic \: acid: }}}$

${ \green{ \bf{ Site\: of \: Synthesis:}}}$

Synthesized in green fruits and seeds at the beginning of the wintering period.

${ \green{ \bf{ Functions: }}}$

Induces dormancy of buds and seeds.

Inhibits seed-germination and development.

Stimulates closing of stomata.