Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 39, Problem 4TYKT
Summary Introduction
To examine: Whether the statement “action potentials are electrical impulses that might be used as internal communication in plants” is true or false.
Concept introduction: In addition to light, the plants respond to various stimuli such as gravity and mechanical stimuli. The response of a plant towards any particular stimuli is known as tropism. This tropism is helpful for the plants so that they can grow towards adequate sources of light and water.
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Chapter 39 Solutions
Study Guide for Campbell Biology
Ch. 39 - Prob. 1IQCh. 39 - What are the important steps in the transduction...Ch. 39 - What is the plans growth response? What types of...Ch. 39 - Explain how phytochrome can also indicate the...Ch. 39 - What are free-running periods?Ch. 39 - Indicate whether a short-day plant and a long-day...Ch. 39 - Prob. 7IQCh. 39 - Prob. 8IQCh. 39 - Prob. 9IQCh. 39 - Prob. 1SYK
Ch. 39 - Develop a concept map to illustrate your...Ch. 39 - Prob. 3SYKCh. 39 - Prob. 1TYKTCh. 39 - Prob. 2TYKTCh. 39 - Prob. 3TYKTCh. 39 - Prob. 4TYKTCh. 39 - Prob. 5TYKTCh. 39 - Prob. 6TYKTCh. 39 - Prob. 7TYKTCh. 39 - The body form within a species of plant may vary...Ch. 39 - Prob. 2TYKCh. 39 - Small molecules in the cell that amplify signals...Ch. 39 - According to the acid growth hypothesis, a. auxin...Ch. 39 - Which of the following situations would most...Ch. 39 - Prob. 6TYKCh. 39 - Prob. 7TYKCh. 39 - Prob. 8TYKCh. 39 - Prob. 9TYKCh. 39 - Prob. 10TYKCh. 39 - Prob. 11TYKCh. 39 - Prob. 12TYKCh. 39 - Prob. 13TYKCh. 39 - Prob. 14TYKCh. 39 - Prob. 15TYKCh. 39 - Which of the following is not a plant defense...Ch. 39 - Prob. 17TYK
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- Phytochrome is a plant pigment protein that mediates plant infection promotes plant growth mediates morphological changes in response to red and far-red light inhibits plant growtharrow_forwardthis plant is radish plant. please use arrow to identify and locate its root system and other parts of itarrow_forward___ helps in formation of leafarrow_forward
- On a hot, dry day a plant closes its stomata thereby conserving water. Which plant hormone is responsible for the closing of the stomata? ethylene abscisic acid cytokinin auxin gibberellinarrow_forwardAlmost all plant communication is by a slow mechanism. What is the mechanism?arrow_forwardA short-day plant flowers only when exposed to light for less than 12 hours long. Which of the following would cause the plant to flower? * O a 13-hour night and 11-hour day with 1 minute of darkness after 6 hours a 12-hour day and 12-hour night with a flash of red light an 8-hour day and 16-hour night with a flash of white light after 8 hours O a 9-hour night and 15-hour day with 1 minute of darkness after 7 hours 24 hours of continuous lightarrow_forward
- An ________ is a plot showcasing a plant’s preferred light wavelengths which will result in maximum rates of photosynthesis.arrow_forwardWhich plant hormone is known as germination inhibitor? gibberellin ethylene abscisic acid auxinarrow_forwardIn many monocots such as grasses and irises, foliage leaves have a shape quite different from that of eudicot leaves. Their shape tends to be (circle two: long, short, tapering, wide). They lack a petiole and instead have a_________________ ______________________ that wraps around the stem. Name three monocots that have leaves that are unusual in that they appear to have petioles and laminas.arrow_forward
- Predict whether flowering in a short day plant with a minimum critical length of 14 hours would be expected to occur in the following situations. The plant is exposed to 15 hours of daylight and 9 hours of darkness uninterrupted. The plant is exposed to 9 hours of daylight and 15 hours of darkness. The plant is exposed to 9 hours of daylight and 15 hours of darkness, with 10 minutes exposure to red light in the middle of the night.arrow_forwardWhy new banana plants produced by traditional methods are likely to be infected with pests and diseasesarrow_forwardHormones 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 messengerarrow_forward
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