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How many types of plant hormones are primarily involved in growth regulation?

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Question: How many types of plant hormones are primarily involved in growth regulation?

Options:

  1. 2
  2. 4
  3. 5
  4. 7

Correct Answer: 4

Solution: 

There are 4 primary types of plant hormones involved in growth regulation: auxins, gibberellins, cytokinins, and abscisic acid.

How many types of plant hormones are primarily involved in growth regulation?

Practice Questions

Q1
How many types of plant hormones are primarily involved in growth regulation?
  1. 2
  2. 4
  3. 5
  4. 7

Questions & Step-by-Step Solutions

How many types of plant hormones are primarily involved in growth regulation?
Correct Answer: 4
  • Step 1: Understand that plant hormones are chemicals that help regulate growth in plants.
  • Step 2: Identify the four main types of plant hormones involved in growth regulation.
  • Step 3: The first type is auxins, which help with cell elongation and growth.
  • Step 4: The second type is gibberellins, which promote stem elongation and seed germination.
  • Step 5: The third type is cytokinins, which encourage cell division and growth of shoots.
  • Step 6: The fourth type is abscisic acid, which helps plants respond to stress and regulates growth.
  • Plant Hormones – Plant hormones, or phytohormones, are chemical substances that regulate various aspects of plant growth and development.
  • Types of Plant Hormones – The four primary types of plant hormones involved in growth regulation are auxins, gibberellins, cytokinins, and abscisic acid.
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