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 13TYK
Summary Introduction
Introduction: Plant hormones are otherwise known as phytohormones. These are biochemicals that are involved in the regulation of normal processes in plant cells. They are produced in extremely low concentrations and functions as signaling molecules. Gibberellins are sprayed over seedless Thompson grapes. Gibberellins play a significant role in the development of fruit set and stem. Also, they stimulate seed germination.
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After buying green bananas or unripe avocadoes, they can be kept in a brown bag to ripen. The hormone released by the fruit and trapped in the bag is probably: a. abscisic acid b. cytokinin c. ethylene d. gibberellic acid
Which of the following is considered essential for germination?
Select one:
a. Abscisin
b. Cytokinin
c. Gibberellins
d. Auxin
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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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- It is the hormone which is responsible for stem elongation. * a. Gibberellins b. Ethylene c. Cytokinin d. Abscisic acidarrow_forwardWhich of the given plant hormone will be more abundant in dormant buds and seeds? a.Gibberellin b.ABA c.Ethylene d.Auxinarrow_forwardLast Valentine's day, an 18-year old girl received a bouquet of flowers from the boy that she likes. She wanted to keep the cut flowers for a few more days so she asked for your advice on how she can retain the freshness of the flowers. Given this situation, what specific plant hormone would you recommend to her? a. abscisic acid b. auxin c. ethylene d. gibberellin e. cytokininarrow_forward
- Some plants are recognized by fungal pathogens on the basis of their stomatal pores. Which of the following would provide these plants immunity from fungal infection? a. Removing all of the stomata from the plant b. Changing the spacing of stomatal pores in these plants c. Reinforcing the cell wall in the guard cells of stomatal pores d. Increasing the number of trichomes on the surfacesarrow_forwardDescribe the way gibberellin causes plant growtharrow_forwardPlants hormone that induces cell division is: A. auxins B. gibberellins C. kinins D. dominsarrow_forward
- The pieces of plant parts show better response to the gibberellin treatment. Select one: a. FALSE O b. TRUE CLEAR MY CHOICEarrow_forwardThe pollen lands on which part of the flower? a. stigma b. style c. ovule d. integumentarrow_forwardIf a farmer wanted less tightly packed clusters of grapes, he would most likely spray the immature bunches with which of the following hormones? cytokinins gibberellins auxin abscisic acidarrow_forward
- A colour change in the fruit and an increase in its sweetness is due to a. the plant hormone ethylene b. keeping the fruit in the sun c. picking the fruit off the plant early d. spraying the fruit with abscisic acid e. keeping the fruit in the coldarrow_forwardPresence of all of the following factors promotes dormancy of seeds, except a.Phenolics b.Impermeable seed coat c.Immature embryo d.Gibberellinsarrow_forwardWhich type of plant secondary metabolite is best known for theantioxidant properties of human foods such as blueberries, tea, andgrape juice?a. alkaloids b. cannabinoids c. carotenoids d. phenolics e. terpenoidsarrow_forward
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