What is the primary role of auxins in apical dominance? (2019)

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Question: What is the primary role of auxins in apical dominance? (2019)

Options:

Correct Answer: Inhibit lateral bud growth

Exam Year: 2019

Solution:

Auxins inhibit the growth of lateral buds, maintaining apical dominance and directing growth towards the apex.

What is the primary role of auxins in apical dominance? (2019)

What is the primary role of auxins in apical dominance? (2019)

Step 1: Understand that auxins are a type of plant hormone.
Step 2: Know that apical dominance is when the main stem of a plant grows more strongly than the side branches.
Step 3: Learn that auxins are produced at the tip of the plant (the apex).
Step 4: Realize that auxins travel down the stem and affect the growth of lateral buds (the buds on the sides).
Step 5: Understand that auxins inhibit or slow down the growth of these lateral buds.
Step 6: Conclude that by inhibiting lateral bud growth, auxins help the plant focus its energy on growing taller and stronger from the top.

No concepts available.