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 given plant hormone will be more abundant in dormant buds and seeds?
a.Gibberellin
b.ABA
c.Ethylene
d.Auxin
Which of the following is considered essential for germination?
Select one:
a. Abscisin
b. Cytokinin
c. Gibberellins
d. Auxin
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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- During germination cotyledons come out of the soil in a.Rice b.Mango c.Maize d.Castorarrow_forwardIt is the hormone which is responsible for stem elongation. * a. Gibberellins b. Ethylene c. Cytokinin d. Abscisic acidarrow_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_forwardThe pollen lands on which part of the flower? a. stigma b. style c. ovule d. integumentarrow_forward
- Plants hormone that induces cell division is: A. auxins B. gibberellins C. kinins D. dominsarrow_forwardPresence of all of the following factors promotes dormancy of seeds, except a.Phenolics b.Impermeable seed coat c.Immature embryo d.Gibberellinsarrow_forwardA 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_forward
- What is the problem with weed seed? Select one: a. other color b. bad smell c. low moisture content d. toxicarrow_forwardWhich of the following are traits mentioned in the article that allow seeds to be epizoochorous? a. having hooks or barbs b. being mixed with mud c. being mixed within the residues of the fruit's pulp d. being brightly colored The article mentioned is listed by the link below: https://www.mdpi.com/2076-2607/10/10/1912 I don't know how else to include what the article in question is besides just providing the link for it iarrow_forwardGaseous hormones are able to enter cells without requiring specialmembrane transporter. Which of the major plant hormones is adiffusible gas?a. auxin b. gibberellin c. cytokinin d. ethylene e. abscisic acidarrow_forward
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