Apical Dominance and Auxin Expression

Apical Dominance and Auxin Expression

12th Grade

16 Qs

quiz-placeholder

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Apical Dominance and Auxin Expression

Apical Dominance and Auxin Expression

Assessment

Quiz

Biology

12th Grade

Easy

Created by

. Ayunda

Used 6+ times

FREE Resource

16 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 3 pts

What is the mechanism of apical dominance?

Apical dominance is a result of lateral bud growth stimulation

Apical dominance is controlled by the plant hormone cytokinin

Apical dominance is caused by excessive sunlight exposure

The mechanism of apical dominance is primarily controlled by the plant hormone auxin, which is produced in the terminal bud and transported downwards to inhibit the growth of lateral buds.

2.

MULTIPLE CHOICE QUESTION

30 sec • 3 pts

How does auxin affect lateral buds?

Auxin causes lateral buds to change color.

Auxin inhibits the growth of lateral buds.

Auxin has no effect on lateral buds.

Auxin promotes the growth of lateral buds.

3.

MULTIPLE CHOICE QUESTION

30 sec • 3 pts

What regulates auxin expression in plants?

Light, gravity, and other hormones

Wind direction, humidity, and nutrients

Temperature, soil pH, and water availability

Time of day, plant age, and leaf color

4.

MULTIPLE CHOICE QUESTION

30 sec • 3 pts

Which signaling pathways are involved in apical dominance?

Auxin signaling and strigolactone signaling

Jasmonic acid signaling and Ethylene signaling

Cytokinin signaling and Gibberellin signaling

Brassinosteroid signaling and Abscisic acid signaling

5.

MULTIPLE CHOICE QUESTION

30 sec • 3 pts

Explain the role of auxin in suppressing lateral bud growth.

Auxin suppresses lateral bud growth by inhibiting their outgrowth and promoting apical dominance.

Auxin only affects root growth, not lateral bud growth

Auxin has no effect on lateral bud growth

Auxin promotes lateral bud growth by enhancing their outgrowth

6.

MULTIPLE CHOICE QUESTION

30 sec • 3 pts

Describe the process of apical dominance in plants.

Apical dominance in plants is controlled by auxin produced in the terminal bud, which suppresses the growth of lateral buds.

Apical dominance is caused by a lack of water reaching the terminal bud.

Apical dominance is a result of excessive sunlight exposure on lateral buds.

Apical dominance is controlled by cytokinins produced in lateral buds.

7.

MULTIPLE CHOICE QUESTION

30 sec • 3 pts

How can auxin levels be manipulated to control apical dominance?

Prune the roots to manipulate auxin distribution

Increase auxin levels by removing lateral buds

Apply a growth hormone to decrease auxin levels

Remove the apical bud to reduce auxin levels and promote lateral bud growth.

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