After buying green bananas or unripe avocados, they can be kept in a brown bag to ripen. The hormones released by the fruit and trapped in the bag are probably
Correct answer: C. Ethylene
- A. Abscises acid
- B. Cytokinin
- C. Ethylene
- D. Gibberellic acid
Explanation
Ethylene is a colorless, flammable, gaseous unsaturated hydrocarbon, C2H4, and occurs in plants functioning especially as a natural growth regulator that promotes the ripening of fruit. Ethylene production is regulated by a variety of developmental and environmental factors. During the life of the plant, ethylene production is induced during certain stages of growth, such as germination, ripening of fruits, abscission of leaves, and senescence of flowers.
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About Coordination and Control
Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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