EBK BIOLOGY: CONCEPTS AND APPLICATIONS
9th Edition
ISBN: 8220100478659
Author: STARR
Publisher: CENGAGE L
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Chapter 27, Problem 11SQ
Summary Introduction
Introduction:
The growth of a seed into a seedling is known as germination. Seed dormancy is a climate-specific adaptation in which the seed remains inactive until suitable conditions are present to support the growth of the plant. The dormant seeds germinate under favorable conditions and grow into plants.
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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 hormone
Ethylene respond synergistically with another plant hormone ‘X’ for promoting shedding of leaves, flowers and fruits. The hormone ‘X’ can be used in agriculture for
a.Inducing fruit ripening
b.Increasing internode elongation
c.Reducing requirement of irrigation
d.Promoting flowering
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. Ethylene
Chapter 27 Solutions
EBK BIOLOGY: CONCEPTS AND APPLICATIONS
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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
- 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. cytokininarrow_forwarddiscuss five (5) plant hormonesarrow_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_forward
- Match the hormone with the observation. ___ ethylene a. Your cabbage plants form ___ cytokinin elongated flowering stalks. ___ auxin b. The potted plant in your room ___ gibberellin is leaning toward the window. ___ ABA c. The last of your apples is getting ___ nitric oxide really mushy. d. The seeds of your roommate’s marijuana plant do not germinate no matter what he does to them. e. Lateral buds are sprouting. f. Your lettuce plants develop brown spots on their leaves.arrow_forwardWhich of the following plant hormones is produced in the root meristems, travel upward and in higher concentration counter the apical dominance caused by ____________? a. Gibberellins b. Ethylene c. Cytokinin d. Abscisic acidarrow_forwardThis 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_forward
- Pruning plants can promote lateral stems and increased plant biomass by _____________. Select one: a. suppressing cytokinin transport b. suppressing auxin transport c. promoting cytokinin transport d. promoting auxin transportarrow_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_forwardIdentify the correct one(s) for the hormone who's precursor is acetyl-CoA a. Stimulates stem elongation. b. Helps to attain quicker maturity in conifers. c. Induces production of new leaves. a.a and b b.b only c.a and c d.a onlyarrow_forward
- Ethylene promotes A. production of female flowers B. fruit ripening C. promotion of abscission of leaves, fruits, and flowers D. production of ABA E. A, B, and C F. B, C, and Darrow_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_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
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