Question

Name 3 harmones of plant and also write its work​

Answer 1

When you hear the word 'hormones,' you may think of typical human hormones, such as testosterone, estrogen or even adrenaline. These hormones in our bodies regulate different physiological activities ranging from the tone of our voices to our height to our fight or flight response. Plants, which seem rather unresponsive most of the time, also have hormones to control physiological activities.

Hormones are chemical signals that coordinate the different parts of an organism. The word 'hormone' comes from a Greek term that means 'to excite.' These chemicals are produced in very small amounts in one area of an organism and are then sent to another part, where a response is triggered. Let's use the human hormone adrenaline to illustrate this. Our adrenal glands are located above our kidneys. They produce a hormone called adrenaline that, when needed, is transported through our bodies to cause an increase in heart rate, dilation of pupils and other responses to make us more alert.

Hormones in plants act in similar ways. They are produced by cells in one area of the plant - such as the leaves, stems or root - and then transported to a different area of the plant in order to produce a response. While the five major plant hormones we will look at sometimes have countless functions, we will focus on the main responses they trigger.

Answer 2

These hormones help in regulation of the plant body by responding to the various signals from the plant and environment. The hormones are regulated in different tissues during the different development stages. There are five major hormones which are auxin, cytokinin, gibberellin, abscisic acid, and ethylene. Each hormone differs in its effects. The auxins, gibberellins, and cytokinins act as growth stimulators, whereas, abscisic acid and ethylene act as growth inhibitors. Plant hormones are simple in their structure as compared to those of animals or humans. There are no specific or specialized glands that produce these hormones. In fact, they are synthesized anywhere in the plant and act on any part as their target. Besides the hormones, there are many plant growth factors that affect the function and growth of plants.