Campbell Biology: Concepts & Connections (8th Edition)
8th Edition
ISBN: 9780321885326
Author: Jane B. Reece, Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan
Publisher: PEARSON
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Chapter 33, Problem 21TYK
Summary Introduction
To write: One-sentence summary of the discovery made by the Darwins, Boyle-Jensen, and Went. Also, credit the person who discovered the auxin in real sense.
Concept introduction: The first plant hormone was discovered by a series of experiments carried out by Darwin, Boyle-Jensen and Went on the phototropism. Charles Darwin was the first to start the experiment on phototropism, that was succeeded by Boyle-Jensen and ultimately by Frits Went. The Frits Went finally extracted the plant hormone responsible for phototropism.
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Chapter 33 Solutions
Campbell Biology: Concepts & Connections (8th Edition)
Ch. 33 - Test your knowledge of the five major classes of...Ch. 33 - Prob. 2TYKCh. 33 - Prob. 3TYKCh. 33 - In autumn, the amount of _____ increases and the...Ch. 33 - Prob. 5TYKCh. 33 - Prob. 6TYKCh. 33 - Prob. 7TYKCh. 33 - Prob. 8TYKCh. 33 - Prob. 9TYKCh. 33 - Prob. 10TYK
Ch. 33 - Prob. 11TYKCh. 33 - Prob. 12TYKCh. 33 - Prob. 13TYKCh. 33 - Prob. 14TYKCh. 33 - A certain short-day plant flowers only when days...Ch. 33 - If apples are to be stored for long periods, it is...Ch. 33 - Prob. 17TYKCh. 33 - A plant nursery manager tells the new night...Ch. 33 - A plant biologist observed a peculiar pattern when...Ch. 33 - Imagine the following scenario: A plant biologist...Ch. 33 - Prob. 21TYK
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- One of the constants in the experiment was that the chloropyll content was measured every 48 hours. A True B Falsearrow_forward50. Read the given statements and select the correct option. (i) Darwin and Darwin (1880) found that sensation of unilateral illumination was perceived by the coleoptile tip of canary grass. (i) IAA is universal natural auxin, discovered by Kogl et al. (iii) IBA is both natural and synthetic auxin. (iv) Auxins promote the growth of lateral shoots. (a) Statements (i) and (ii) are correct. (b) Statements (ii) and (iii) are correct. (c) Statements (i), (ii) and (iii) are correct. (d) Statements (i), (ii), (iii) and (iv) are correct.arrow_forwardRead the scenario. A botanist (a biologist who specializes in plant biology) is researching the enormous biodiversity of plants found in the tropical rainforest. As she hikes through the forest, she finds a section of forest that contains several types of flowering plants that are unidentified, meaning they have yet to be named and classified into a scientific group. She observes several different examples of this plant over several acres of forest and notes that the leaves and stems of these plants look very similar. The only part of the plant that varies is the flower. She notes that on the southern side of the forest, the flowers are bright pink and have 18 petals per flower. On the northern side of the forest, the flowers are white and have nine petals per flower. The botanist wants to determine if the plants she has discovered are of the same species or different species. How would she be able to determine this? a If they are two different species, she could grow them…arrow_forward
- In the Variation in plants, why do these differences such as color, sizes and shapes of the leaves occur?arrow_forwardWhat is the most likely consequence of a mutation that would cause sporopollenin to degrade quickly right after it is synthesized? -A reduction in the ability of pollen and spores to survive intact and disperse to new areas. -A reduction in the ability of pollinators to detect and transfer pollen grains to a stigma. -A decrease in the number of sperm that can be produced. -A decrease in the ability of the pollen grain or spore to open when a suitable location is found. -A reduction in the ability of the integument of an ovule to develop into a seed coat.arrow_forwardFrom his experiments about garden peas, list down at least 5 important points about it.arrow_forward
- Plants and animals usually battle each other; describe why and how this occurs. Once animal-pollinated flowers evolved, a new type of plant–animal interaction was possible; describe it. How is it possible for a mutation in aplant to be beneficial for both the plant and for an animal?arrow_forwardGive typing answer with explanation and conclusionarrow_forwardMetal hyperaccumulating plants have evolved this unique phenotype because _______ Select one: a. they can be used to clean soil (phytoremedation) b. prevent herbivory (“better not touch….you’re poison….” –Alice Cooper or an unassuming insect) c. they can accumulate pricey and precious metals (cha-ching!) d. they can avoid these metals (clearly you are too focused on a summer break- enjoy it).arrow_forward
- Aziza is a plant lover, she often goes for a stroll in a nearby garden in evening. Today her friend Farha is visiting her, so both went to the garden. While scrolling through garden they observed the following 2 flowers, if they have to describe them what observation will they write Aarrow_forwardCan you answer all the parts to this question please (a) What are the advantages of the self-incompatibility (SI) system in plants? Give at least three advantages. (b) What are the differences between gametophytic SI and sporophytic SI?arrow_forwardQuestion about "scientific method"? I have tried it but it is incorrect.arrow_forward
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