Question

#What is plant hormone?
(do not copy from Google
and make answer correctly and short) ​

Answer 1

Answer:

Also known as phytohormones, plant hormones are any of the various hormones produced by plants that control or regulate germination, growth, metabolism, or other physiological activities. Auxins, cytokinins, gibberellins, and abscisic acid are examples of plant hormones.

Explanation:

I got this from Google but I changed the language. Hope it will be useful.

Answer 2

Answer:

Plant hormones are chemicals plants use for communication, coordination, and development between their many cells.

Explanation:

Types of plant hormones are :-

1. Abscisic Acid

Without these plant hormones, plants could not regulate their water content. Also involved in seed dormancy.

2. Auxins

They affect cell enlargement and elongation. They also allow the plant to react to sunlight and gravity, known as phototropism and geotropism, respectively. In many plants auxins are responsible for establishing the apical meristem, and establish the growth direction of the plant.

3.Cytokinins

The cytokinins are a group of plant hormones which interact directly with the auxins. In doing so, they direct cell differentiation and various aspects of cell metabolism. The cytokinins interact with the plant’s DNA, making it express or hide various proteins. This directs cell differentiation within the plant, allowing the plant to develop different tissues for different purposes.

4.Ethylene

Unlike the other plant hormones, ethylene is a single chemical. It is in the form of a gas at regular temperatures, and allows plants a fast way to communicate between cells and other plants. In the early 1900s, it was found that ethylene gas would start the ripening process in fruits.

5.Gibberellins

Gibberellins, like the auxins, are regulatory plant hormones. They, to a greater extent than the auxins, control cell division and overall plant growth.Along with the auxins, gibberellin plant hormones affect senescence of plant parts. Gibberellins also have an important role in bringing seeds out of dormancy. Gibberellins in the seed activate enzymes such as amylases, which will break down starches to glucose and provide the embryo with energy. The plant hormones also activate other enzymes, which provide the embryo with amino acids and lipids to grow.

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