AP BIOLOGY

Detailed explanation-1: -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-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, the Gaseous Plant Hormone.

Detailed explanation-4: -Ethylene is a gaseous phytohormone that promotes ripening of fruits. Apples and pears are examples of fruit that produce ethylene with ripening.

Detailed explanation-5: -Ethene is a hydrocarbon gas which speeds up ripening in bananas and other fruit as well as causing dropping of leaves. It also controls cell division during plant growth. In the food industry fruit is often picked unripe and then transported. This prevents fruit from over-ripening on the journey.