CAMP.BIO:CONC...MOD.MAST+PRINT>I<
10th Edition
ISBN: 9780136858287
Author: Taylor
Publisher: INTER PEAR
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
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.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
You are responsible for landscaping a very large urban park. You choose a popular flowering garden plant, the hydrangea, to plant throughout the park. The nursery you purchased the plants from said that the flowers should be pink. After a few months, though, you find—to your surprise—that the plants throughout the park display a variety of flower colors ranging from purple and blue, to pink and white, and finally, to all shades in between.
After a suggestion from a friend, you test the soil where each plant was planted, and you determine that the color of the flowers seems to correlate with the acidity of the soil in which the plant was placed.
Choose the answer that best fits the blank. The parentheses after the blanks are the choices.
Since the flowers have shown such a broad range of colors, with no clear distinction between one color type and the next, this is an example of _________ (continuous variation, codominance, pleiotropy). The acidity of the soil is an example of…
THINK IT THROUGH You are a USDA official and must decide whether to allow the commercial planting of a new genetically modified strain of cabbage that is tolerant to a best-selling herbicide and has twice the vitamin content of regular cabbage. What questions would you ask of scientists before deciding whether to approve the new crop? What scientific data would you want to see? Would you also consult nonscientists? Would you consider ethical, economic, and social factors?
What would happen to a plant that had a mutation preventing it from being ablr to perform phototropism? Compare it to a plant with a mutation that allows it to do phototropism more quickly than other plants. Explain in term of natural selection.
Chapter 33 Solutions
CAMP.BIO:CONC...MOD.MAST+PRINT>I<
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 - Which of the following is a type of defense used...Ch. 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
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
- What do you mean by auxin?arrow_forwardThey started to read books, surf the internet and study researches on the effect of music to plant growth, Members from the group continued to formulate their respective hypotheses. They went on performing a simple experiment. The group selected two San Francisco plants of similar size planted on the sanme type of soil and kind of pots. Both plants were healthy. Each plant were placed in separate rooms with a window exposed to full sunlight and were watered with equal amounts every day. They measured the height of the plants. Once a day, they played classical music on room 1 for about one hour while leaving room 2 with no music played. Over a period of two weeks, they noted significant differences in each plant's growth. Multiple Choice: Write the letter of your answer before the number. What was the problem in the Grade 7-Rizal's experiment? Which San Francisco plant is taller? What kind of music should be given to plants? 1. a. How long can plants grow? d. Does music make a plant…arrow_forwardFlorigen was identified by which of the following approaches? a-A genetic approach that involved the isolation of mutants b-By isolating proteins from plant extracts. c-By selection. d-By treating plants with auxin.arrow_forward
- Urkle decided he wanted to test the effects of watering his plants with cold coffee. For a week he watered one group of plants cold coffee. He ignored the other group of plants. Urkle has no idea what might happen to plants that receive coffee. What is wrong with Urkle's experimental design? If Urkle wants to test the effects of cold coffee on plant growth, he should water his control group with cold water. If Urkle wants to test the effects of cold coffee on plant growth, he should water the plants in the other group with Dr. Pepper. If Urkle wants to test to test the effects of cold coffee on plant growth, he should water the plants in the other group with hot coffee. If Urkle wants to test the effects of cold coffee on plant growth, he can ignore the control group as long as he makes sure both groups get the same amount of sun.arrow_forwardWhat is the eighth concept used for studying plants? It is difficult to avoid using the phrase “in order to” when referring to plants. Change the following sentences to be more accurate. The first one is done as an example:a. Plants have leaves in order to photosynthesize. “Plants have leaves that photosynthesize,” or “photosynthesis in plants occurs in leaves.”b. Plants have flowers in order to reproduce.c. Plant cells divide in order to make more cells.d. Wind-pollinated plants have their flowers located high above the ground in order to be exposed to stronger wind.e. Some plants have red flowers to attract hummingbirds.f. After I eat dinner, my stomach secretes acid in order to help digest the food.arrow_forwardIf you were a plant, what modified organ would you want (be specific!) and why?arrow_forward
- Give Detailed explanation Solution (don't give Handwritten answer)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_forwardThis is a picture of the initial experiments to figure out how auxin and phototropism worked. How do you expect the plant will grow in each scenario and why?arrow_forward
- 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_forward1. Joseph found out that his spinach garden is infested with bugs. His friend Rain told him that a dilution of detergent and spraying it to the bugs present on his plants will make them go away. Problem is, Rain does not know the right amount of dilution that will be effective without harming the plant itself. Joseph must devise an experiment plan. He asked you to make a summary table of the experiment design. Using your knowledge in research, kindly fill the table for him. USE YOUR BEST JUDGMENT IN CHOOSING THE RIGHT VALUES TO USE. Table 1. Experiment plan for testing efficacy of different dilutions of detergent as an insect repellant Treatments Number of plant Samples to use Percent Dilution of Number of Treatments (%) applications per day for 1 week (trials) Set up A Set up B Set up C Control Set uparrow_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