Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Textbook Question
Chapter 46, Problem 3RQ
What is a phytochrome? How do the two forms of phytochrome help control the plant life cycle?
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What is a phytochrome? How do the two forms of phytochrome help control the plant life cycle?
What kind of light does the active conformation of phytochrome absorb, and what kind of change does such absorption cause?
Which type of phytochrome is biologically active and name the type of
phytochrome present in dark grown plant? *
Chapter 46 Solutions
Biology
Ch. 46.1 - list six important types of plant hormones?Ch. 46.1 - Prob. 2CYLCh. 46.2 - Explain how the Darwin experiments using caps and...Ch. 46.2 - Prob. 1CTCh. 46.2 - Prob. 2TCCh. 46.2 - Prob. 3TCCh. 46.2 - Agricultural biotechnologists have developed...Ch. 46.2 - explain the roles of plant hormones in seed...Ch. 46.2 - Prob. 2CYLCh. 46.2 - Prob. 3CYL
Ch. 46.2 - Prob. 4CYLCh. 46.2 - Prob. 5CYLCh. 46.2 - Prob. 6CYLCh. 46.3 - Although insects are major plant predators,...Ch. 46.3 - Prob. 1HYEWCh. 46.3 - explain how plants that are attacked by predators...Ch. 46.3 - explain how plants that are attacked by predators...Ch. 46.3 - Prob. 3CYLCh. 46.3 - Prob. 4CYLCh. 46.3 - Prob. 1TCCh. 46 - Prob. 1MCCh. 46 - Prob. 2MCCh. 46 - Prob. 3MCCh. 46 - Prob. 4MCCh. 46 - Prob. 5MCCh. 46 - Prob. 1FIBCh. 46 - Prob. 2FIBCh. 46 - Prob. 3FIBCh. 46 - Prob. 4FIBCh. 46 - The hormone _________ causes stomata to close when...Ch. 46 - Compare phototropism and gravitropism in roots and...Ch. 46 - Prob. 2RQCh. 46 - What is a phytochrome? How do the two forms of...Ch. 46 - Which hormones cause fruit development? Which...Ch. 46 - What is senescence? Describe some changes that...Ch. 46 - Prob. 6RQCh. 46 - Describe one example of a plant chemical defense...Ch. 46 - Describe how a sensitive plant closes its leaves....Ch. 46 - A student reporting on a project said that one of...Ch. 46 - Prob. 2AC
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- What unique character distinguishes phytochrome from all other plant pigments?arrow_forwardName the TWO (2) components for phytochrome and where are they being synthesised? *arrow_forwarda. Describe the function of plant roots. b) Describe the function of plant shoots. c)What is the function of lignin in terrestrial plants? d)What are xylem and phloem and how do they differ? e)Exactly what is pollen? f)Exacly what is a seed?arrow_forward
- What is the process in the plant life cycle that occurs within sporangium and results in spores?arrow_forwardWhich of the following statements are true of xylem? A) It is found in all land plants.B) It assists in conducting of materials, such as water and minerals, throughout the plant.C) It can provide structural support to the plant.D) It is found in the gametophyte generation, but not in the sporophyte.E) It contains specialized cells known as tracheids and vessel elementsarrow_forwardWhich parts of the plant would you find the phytochromes highly concentrated? Why? *arrow_forward
- What are the difference and similarities of Palisade mesophyll and Spongy mesophyll in the dicot leaf based on shape and arrangement?arrow_forwardHow many nodes are present in the Dicot stem and Monocot Stem? explainarrow_forwardWhich of the following statements are true of the stomata on the leaves of vascular plants? A) They regulate intake of carbon dioxide needed for photosynthesis.B) They regulate release of oxygen to the air.C) They regulate loss of water.D) They are able to open or close depending on environmental conditions.E) They regulate the absorption of light by chlorophyll.arrow_forward
- What is phototropism?arrow_forward1. a)List two characteristics of plants that make them unique. b)Why do plants need to exchange gases with the environment? c)Distinguish between a fibrous root and a taproot. d)What is the main driving force for the movement of water in plants? e)State four benefits of asexual reproduction in plants.arrow_forwardWhat are Phytochrome, photoreceptor, red and far-red light?arrow_forward
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