How Does PLANT HORMONES - Auxin Gibberellin Cytokinin Ethylene Abscisic Acid Work?

Plant hormones are like tiny helpers inside plants that help them grow and change. They work together to make sure a plant knows when to stretch, when to open its leaves, and even when to let go of old leaves.

How Auxin Works

Imagine you're playing with a seesaw. If one side goes up, the other goes down. Auxin is like that seesaw in plants, it helps them grow taller by telling one side of the stem to grow faster than the other. That’s how plants bend toward light.

How Gibberellin Works

Think about getting a big hug from your favorite grown-up, it makes you feel taller and stronger. Gibberellin is like that hug for plants. It helps them grow taller, especially when they’re young or need to break through the soil.

Other Hormones

  • Cytokinin is like a friendly reminder, it tells plants to make new leaves and keep growing.
  • Ethylene acts like a sneeze, it makes fruits ripen and helps leaves fall off in autumn.
  • Abscisic Acid is like a sleepy signal, it helps plants rest during dry times or cold weather.

All these hormones work together, just like you and your friends do when you play.

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Examples

  1. A seedling grows taller because of gibberellin, like a plant using a special signal to stretch up toward the sun.
  2. When you pinch off the tip of a plant, it starts growing sideways because auxin is no longer guiding its direction.
  3. Leaves fall from trees in autumn due to abscisic acid, which tells them it's time to let go.

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