Unripe fruits are hard and tart. Ripening is a process that sweetens and softens the fruit to make it more attractive to animals who will eat the fruit and disperse the seeds. A plant hormone, ethylene, leads to the ripening of many fruits. Once ethylene starts being pro- duced, it initiates a feedback loop that causes more ethylene to be produced, increasing the rate of ripening. Which of the following best identifies and describes the feedback loop initiated by the pro- duction of ethylene? A It is a positive feedback loop because the initiating stimulus causes a subsequent de- crease in the stimulus. B It is a negative feedback loop because the initiating stimulus causes a subsequent in- crease in the stimulus. с It is a negative feedback loop because the initiating stimulus causes a subsequent de- crease in the stimulus. D It is a positive feedback loop because the initiating stimulus causes a subsequent in- crease in the stimulus.
Unripe fruits are hard and tart. Ripening is a process that sweetens and softens the fruit to make it more attractive to animals who will eat the fruit and disperse the seeds. A plant hormone, ethylene, leads to the ripening of many fruits. Once ethylene starts being pro- duced, it initiates a feedback loop that causes more ethylene to be produced, increasing the rate of ripening. Which of the following best identifies and describes the feedback loop initiated by the pro- duction of ethylene? A It is a positive feedback loop because the initiating stimulus causes a subsequent de- crease in the stimulus. B It is a negative feedback loop because the initiating stimulus causes a subsequent in- crease in the stimulus. с It is a negative feedback loop because the initiating stimulus causes a subsequent de- crease in the stimulus. D It is a positive feedback loop because the initiating stimulus causes a subsequent in- crease in the stimulus.
Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN:9781305073951
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Chapter30: Communication Strategies In Plants
Section: Chapter Questions
Problem 2DAA: Volatile Secondary Metabolites in Plant Stress Responses In 2007, researchers Casey Delphia, Mark...
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Transcribed Image Text:Unripe fruits are hard and tart. Ripening is a process that sweetens and softens the fruit to
make it more attractive to animals who will eat the fruit and disperse the seeds. A plant
hormone, ethylene, leads to the ripening of many fruits. Once ethylene starts being pro-
duced, it initiates a feedback loop that causes more ethylene to be produced, increasing
the rate of ripening.
Which of the following best identifies and describes the feedback loop initiated by the pro-
duction of ethylene?
A
It is a positive feedback loop because the initiating stimulus causes a subsequent de-
crease in the stimulus.
B
с
D
It is a negative feedback loop because the initiating stimulus causes a subsequent in-
crease in the stimulus.
It is a negative feedback loop because the initiating stimulus causes a subsequent de-
crease in the stimulus.
It is a positive feedback loop because the initiating stimulus causes a subsequent in-
crease in the stimulus.
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