What Is Life? A Guide to Biology with Physiology
4th Edition
ISBN: 9781319065447
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 20, Problem 9MC
Summary Introduction
Introduction:
Ethylene has an effect on the ripening of the fruit.
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Which of the given plant hormone will be more abundant in dormant buds and seeds?
a.Gibberellin
b.ABA
c.Ethylene
d.Auxin
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
Chapter 20 Solutions
What Is Life? A Guide to Biology with Physiology
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- This plant hormone is a hydrocarbon gaseous hormone, which is best known for its role in fruit ripening. A. Auxin B. Gibberellins O C. Strigolactone D. Abscisic acid O E. Ethylenearrow_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_forwardIdentify the wrong match a.Senescence —Both auxin and ABA promote it b.Apical dominance — Auxin induces and Cytokinin counteracts c.Dormancy — Both ethylene and GA break it d.Callus differentiation — Auxin and cytokininsarrow_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_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_forwardIt is the hormone which is responsible for stem elongation. * a. Gibberellins b. Ethylene c. Cytokinin d. Abscisic acidarrow_forward
- Which hormone is associated with amylase production? Select one: a. gibberellin b. ethylene c. auxin d. cytokinin e. abscisic acidarrow_forwardAn unripe avocado placed in a paper bag with an apple will ripen; its skin will turn darker green, it will soften, and it will produce an increasing amount of odors. Which plant hormone released by the apple causes this effect? Select one: a. Abscisic acid b. Auxins c. Ethylene d. Gibberellins e. Jasmonic acidarrow_forwardDuring germination cotyledons come out of the soil in a.Rice b.Mango c.Maize d.Castorarrow_forward
- Choose the best answer for following question It is present in a gaseous form. a. auxin d. ethyleneb. gibberellin e. abscisic acidc. cytokininarrow_forwardElevated levels of this hormone promote seed dormancy? Select one: a. gibberellin b. abscisic acid c. ethylene d. salicyclic acid e. auxinarrow_forwardThe pollen lands on which part of the flower? a. stigma b. style c. ovule d. integumentarrow_forward
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