Question

What is meant by plant hormone ? write two difference between tropic movements and nastic movements?

Answer 1

• Hey here is ur answer➡➡➡➡➡➡➡➡  Plant hormones are the chemicals produced by plants to coordinate their growth, development and responses to the environment. They are also called phytohormones Examples - auxins, gibberllins,cytokinins and absesic acid  Difference between tropic movements and nastic movements   Tropic movements -response either towards the stimulae or away from stimulae. These are Directional movements growth dependent   Nastic movements - response neither towards nor away from stimulus.  non - directional movements.  Growth independent.   I hope this helps you      

Answer 2

$\underline{PLANT \:HARMONE}$ :-
Plant hormones, also known as phytohormones, are chemicals that regulate plant cell processes. They are signal molecules produced within the plantfunctioning in extremely low concentrations.

$\underline{NASTIC\: MOVEMENT}$:-
Nastic movements are plant movements that occur in response to environmental stimuli but unlike tropic movements, the direction of the response is not dependent on the direction of the stimulus. Some of the most spectacular plant movements are nastic movements

$\underline{TROPIC\: MOVEMENT}$:-
A tropism is a biological phenomenon, indicating growth or turning movement of a biological organism, usually a plant, in response to an environmental stimulus.

$\underline{DIFFERENCE\: BETWEEN\: TROPIC \:MOVEMENT\: AND\: NASTIC\: MOVEMENT}$:-
Nastic movements differ from tropic movements in that the direction of tropicresponses depends on the direction of the stimulus, whereas the direction of nastic movements is independent of the stimulus's position. The tropic movement is growthmovement but nastic movement may or may not be growth movement.

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