BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Ethylene: ↑ A gas (C2H4) produced by plants, and known as the “ripening hormone, ” which stimulates fruit ripening.

Detailed explanation-2: -Ethylene is a gaseous plant hormone that plays an important role in inducing the ripening process for many fruits, together with other hormones and signals. An unripe fruit generally has low levels of ethylene. As the fruit matures, ethylene is produced as a signal to induce fruit ripening.

Detailed explanation-3: -Most fruits produce a gaseous compound called ethylene that starts the ripening process.

Detailed explanation-4: -Ethylene may be produced not only in ripening fruit, but from internal combustion exhaust engines, smoke, rotting vegetation, natural gas leaks, welding, and in some types of manufacturing plants.