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 7MC
Summary Introduction
Introduction:
Gibberellins cause fruit size to increase.
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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
Which of the following is considered essential for germination?
Select one:
a. Abscisin
b. Cytokinin
c. Gibberellins
d. Auxin
Last 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. cytokinin
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
- Which hormone can regulate guard cells? Select one: a. ethylene b. abscisic acid c. gibberellin d. cytokinin e. auxinarrow_forwardAfter 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 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_forward
- This class of plant hormones are exuded by the plant roots. On the one hand, these plant hormones stimulate fungal metabolism and branching. On the other hand, they also trigger seed germination of parasitic plants. O A. Auxin B. Gibberellins O C. Strigolactone D. Abscisic acid O E. Ethylenearrow_forwardChoose the best answer for following question It is present in a gaseous form. a. auxin d. ethyleneb. gibberellin e. abscisic acidc. cytokininarrow_forwardYou are trying to get some seeds started by soaking them in water. A few of the seeds are not taking in water or germinating- you suspect that their seed coat has excessive amounts of the hormone, that is keeping them from germinating. Select one: O A. В. C. D. O E. O F. G. O H. OI. J. O K. OL. O M. N. O. O P. R.arrow_forward
- B. Identify the plant responses to inducing hormones. Choose your answers in the box and write the correct answers on the blank. G. FLORIGEN A. AUXIN D. ABSCISIC ACID B. GIBBERELLINS E. ETHYLYNE H. METHYL SALICYLATE C. CYTOKININS F. SYSTEMIN _1. Seed germination _2. Phototropism _3. Maintains seed dormancy _4. Shoot elongation _5. Leaf drop _6. Stimulates lateral bud _7. Influence flowering 8. Gravitropism _9. Closes stomata _10. Prevents lateral bud sprout (apical dominance) _11. Fruit development 12. Fruit ripening 13. Gaseous hormonearrow_forwardThe summer is not optimal for grape growing and you're searching in your memory for something regarding plant hormones. Explain 2 ways you could utilize plant hormones (choose from auxin, ethylene, cytokinin, gibberellin, abscisic acid, salicylic acid, jasonic acid) to compensate for a problem during growing. For each way:arrow_forwardElevated levels of this hormone promote seed dormancy? Select one: a. gibberellin b. abscisic acid c. ethylene d. salicyclic acid e. auxinarrow_forward
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