AP BIOLOGY

Detailed explanation-1: -Ethylene is produced from essentially all parts of higher plants, including leaves, stems, roots, flowers, fruits, tubers, and seeds. Ethylene production is regulated by a variety of developmental and environmental factors.

Detailed explanation-2: -Producers: Fruits producing ethylene in their cells are apples, bananas, tomatoes, avocados, melons, pears, squash, and stone fruits such as mangos. Sensitive fruit: Plants sensitive to ethylene that do not produce it themselves are broccoli, cabbage, cauliflower, leafy greens, and lettuce.

Detailed explanation-3: -Ethylene is a gaseous hormone that controls plant life throughout development.

Detailed explanation-4: -Ethylene is the first-identified plant hormone known to regulate numerous processes in plant growth, development, and response to biotic and abiotic stresses. Ethylene is best known for its effect on fruit ripening and organ abscission, and thus has great commercial importance in agriculture.

Detailed explanation-5: -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.