1. A) Describe the three steps (Reception, Transduction, Response) of de-etiolation (greening response) signal transduction in plants. B) Describe a signal transduction (give the stimulus and response) that may occur in humans.

1. A) Describe the three steps (Reception, Transduction, Response) of de-etiolation (greening response) signal transduction in plants. B) Describe a signal transduction (give the stimulus and response) that may occur in humans.

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter38: Plant Developmental Responses To External And Internal Signals

Section: Chapter Questions

Problem 1TYU

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A) Describe the three steps (Reception, Transduction, Response) of de-etiolation (greening response) signal transduction in plants.

B) Describe a signal transduction (give the stimulus and response) that may occur in humans.

Expert Solution

Step 1

A stage of etiolation in plant can be elaborated as the presence of non-green plastids called the etioplasts in plant tissues that normally contain plastids. With illumination de-etiolation occurs that causes the transition of etioplast to chloroplast in leaves and at seedling level there is a switch to photomorphogenic growth.

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