NEET BIOLOGY

Detailed explanation-1: -Ethylene is a plant hormone that regulates many aspects of plant growth and development ranging from seed germination to organ senescence. Plants produce ethylene from methionine via S-adenosylmethionine and 1-aminocyclopropane-1-carboxylic acid (ACC).

Detailed explanation-2: -Ethylene gas is a major plant hormone that influences diverse processes in plant growth, development and stress responses throughout the plant life cycle. Responses to ethylene, such as fruit ripening, are significant to agriculture.

Detailed explanation-3: -Ethylene is regarded as a multifunctional phytohormone that regulates both growth, and senescence. It promotes or inhibits growth and senescence processes depending on its concentration, timing of application, and the plant species.

Detailed explanation-4: -As a gaseous hormone, ethylene can freely diffuse across membranes and is thought to be synthesized at or near its site of action, which is different from other plant hormones.

Detailed explanation-5: -Ethylene as a Plant Hormone This plant hormone is essentially produced in all parts of grown plants including roots, stems, tubers, leaves, flower, fruits and seeds. Ethylene is the most widely used plant growth regulator as it plays a vital role in: Stimulating fruit ripening. Helps in determining the sex of a flower.