Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 46.2, Problem 2TC
Summary Introduction
To determine:
Whether gravitropism or phototropism is expected to dominate the response of the seedlings in the given picture.
Introduction:
Tropism in plant displays the movement of plant in response to environmental stimuli. Plants usually show their maximum growth towards the water and light because they need these sources for their growth. There are four different types of tropism: phototropism (movement in response to light), gravitropism (towards gravity), thigmotropism (toward mechanical stimulation) and hydrotropism (toward water).
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
The winding of grape vine tendrils around a trellis support is an example of
Negative phototropism
Positive thigmotropism
thigmonasty
Negative gravitropism
A circadian rhythm
Contrast the investments that angiosperms andgymnosperms make and the structures that they produce toenhance pollination
Which of the following hormones are NOT matched with the proper
function?
abscisic acid- promotes leaf abscission
cytokinins-stimulates cell division
ethylene- promotes fruit ripening
gibberellic acid- promotes stem elongation
auxin-promotes increases in cell size
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
Knowledge Booster
Learn more about
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
- Explain how varying amounts of light and darkness induce flowering.arrow_forwardWhich of the following statements is false? a. Auxin and gibberellin promote stem elongation b. Cytokinin promotes cell division in shoot tips c. Abscisic acid promotes water loss and dormancy d. Ethylene promotes fruit ripening and abscission.arrow_forwardIn the heart embryo stage of Arabidopsis thaliana, there are three key anatomical features that are essential for plant development. The red highlighted cells will become the the yellow highlighted cells will become the and the two "lobes" of the heart will become the suspensor; apical meristem; seed coat basal daughter cell; apical daughter cell; cotyledons shoot apical meristem; root apical meristem; taproots suspensor; shoot apical meristem; taproots root apical meristem; shoot apical meristem; cotyledonsarrow_forward
- Explain how gravitropism is both a positive and negative tropism.arrow_forwardHow do each of the vegetative plant organs contribute to the successof flowering plants?arrow_forwardDiscuss the effect of light and water to the leaf epinasty of monggo (Vigna radiata) seed during and after seed germination.arrow_forward
- • On a commercial scale, enhancing the level of _______ (hormone) can help to speed up fruit ripening. • What measure do fruit producers take to slow down fruit ripening that is caused by natural ethylene?• What is a ‘triple response’. Which plant hormone initiates a triple response? • A change in the ratio of ethylene to auxin controls abscission. In the autumn, the amount of __________ decreases, rendering the cells of the abscission layer more sensitive to __________.arrow_forwardDescribe the method of seed dispersal of the fruit & seeds in the picture below. The more detailed you are the higher the points you can earn. Response Feedback: INone Givonlarrow_forwardWhat is meant by the terms - (a) Seed Viability (b) Seed Germination (c) Seed Vigour (d) Seed Quality?arrow_forward
- Both wind and water pollinated flowers are not very colourful and do not produce nectar. What would be the reason for this?arrow_forwardWhat are two environments in which CAM plants have an adaptive advantage? why is it that they have this adaptive advantage?arrow_forwardWhat are the advantages and disadvantages of wind pollination? What are the advantages and disadvantages of pollination by animals? Why do both types of pollination persist among the angiosperms?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage LearningBiology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning