NEET BIOLOGY

Detailed explanation-1: -The action of ethylene on leaf growth may be auxin-dependent or auxin-independent. Hormonal coordination is an important aspect, which regulates leaf growth processes. Auxin induces ethylene production, and many effects of exogenous auxins are, in fact, ethylene responses (Abeles et al., 1992).

Detailed explanation-2: -Ethene is the IUPAC name for ethylene. It has a “sweet and musky” odour when it is pure. It is the simplest alkene and also the second simplest unsaturated hydrocarbon C2H2. Ethylene is abundantly used in the chemical industry, and the polyethene is extremely produced using ethylene.

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: -Ethylene is an endogenous, gaseous plant hormone that is involved not only in a variety of physiological and developmental processes, from regulating organ growth to inducing fruit ripening, but also in multiple stress responses.