Biological Science (7th Edition)
7th Edition
ISBN: 9780134678320
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Chapter 37, Problem 14PIAT
Summary Introduction
To review:
The electrical signaling involved in the fairly rapid succession that leads to the closing of all the leaflets on the leaf.
Introduction:
The touching of leaflets located at the end of a leaf leads to the closure of all the adjacent leaflets. This closing up of the adjacent leaflets occurs in succession until the entire leaf is closed.
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Hormones and signal pathways
Complete the following paragraph to describe signal transduction as it occurs within plants. Choices may be used more than once or
not at all.
Chemical signals called
play an important role in a plant's
ability to respond to a stimulus.
These signals bind to receptors, the first step in a cellular response called a
may be located in the plasma membrane, the cytoplasm, the
nucleus, or the endoplasmic reticulum.
The series of relay proteins or enzymes activated by the hormone binding the
receptor make up the
Some responses are immediate,
while others require a
like Ca*, to initiate a cellular
response.
The result of the transduction pathway is a
which is often
the transcription of specific genes, resulting in some measurable change.
hormones
reflex arc
signal transduction
pathway
Signal transducers
second messenger
response
Receptor proteins
first messenger
What is the first messenger in signal transduction?
What are second messengers in signal transduction?
What are the three results of signal transduction?
What are three types of signaling processes based on their transduction distance? Give an example for each type.
What are the signaling molecules in the plant? Please describe each of them briefly.
How phytohormone degradation plays important roles in signaling pathways? Explain one of the phytohormones as an example.
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Using scientific concepts and terms describe how the Bucket Orchid can temporarily “hold” onto the bee’s body while it glues the pollen sacs to the bees back. In other words, what type of plant “movement” (aka. response) would this most likely be described as? Please watch the YouTube link to answer the question.
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https://youtu.be/_uHJGdTgtXE
Chapter 37 Solutions
Biological Science (7th Edition)
Ch. 37 - Prob. 2TYKCh. 37 - Prob. 3TYKCh. 37 - 4. What evidence suggests that ABA from roots can...Ch. 37 - Why was it logical to predict that amyloplasts...Ch. 37 - Prob. 6TYUCh. 37 - To explore how hormones function, researchers have...Ch. 37 - Prob. 8TYUCh. 37 - Prob. 9TYPSSCh. 37 - Prob. 10TYPSSCh. 37 - Prob. 11PIAT
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which type of the following play a role in the gravitropic response of plants according to the statolith hypothesis? amyloplasts chloroplasts receptors calcium ions O O O Oarrow_forwardPlant cells communicate in a variety of ways to elicit cellular responses. In the figure below the plant is responding the presence of light with the release of auxin. Auxin was first discovered for its ability to promote growth in plants. It is a plant hormone that inhibits the lengthening and stimulate the formation of lateral roots and root hairs. a) Describe the plant’s response to the presence of light. (refer to picture)arrow_forwardIn a comparison of the water potential and turgor pressure of leaf cells before and after wilting, which of the following would you expect to find? Select one: a. Water potential: wilted = not wilted; Turgor Pressure: wilted < not wilted b. Water potential: wilted > not wilted; Turgor Pressure: wilted < not wilted c. Water potential: wilted < not wilted; Turgor Pressure: wilted > not wilted d. Water potential: wilted < not wilted; Turgor Pressure: wilted < not wilted e. Water potential: wilted > not wilted; Turgor Pressure: wilted > not wiltedarrow_forward
- Give an example of a circadian rhythm in plants.arrow_forwardAlmost all plant communication is by a slow mechanism. What is the mechanism?arrow_forwardExperiments show that plants can communicate with each other. Consider a plant put under drought conditions which is connected via the roots to a neighboring plant. The drought plantbsends messages through the roots to its neighbor. Even through the neighbor plant has plenty of water, it will respond as if in drought conditions too. In what way will the plant respond?arrow_forward
- Describe in detail each step in a general plant signal transduction pathway.arrow_forwardPlant cells communicate in a variety of ways to elicit cellular responses. In the figure below the plant is responding the presence of light with the release of auxin. Auxin was first discovered for its ability to promote growth in plants. It is a plant hormone that inhibits the lengthening and stimulate the formation of lateral roots and root hairs. (c) Explain how the behavioral responses of the plant affect their overall fitness. ( refer to picture )arrow_forwardPlant cells communicate in a variety of ways to elicit cellular responses. In the figure below the plant is responding the presence of light with the release of auxin. Auxin was first discovered for its ability to promote growth in plants. It is a plant hormone that inhibits the lengthening and stimulate the formation of lateral roots and root hairs. (b) Explain the role that auxin has in eliciting the plant’s response.arrow_forward
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