Biology HL
Biology HL
4
Chapters
553
Notes
Theme A - Unity & diversity
Theme A - Unity & diversity
Theme B - Form & Function
Theme B - Form & Function
Theme C - Interaction &  Interdependence
Theme C - Interaction & Interdependence
Theme D - Continuity & Change
Theme D - Continuity & Change
IB Resources
Theme C - Interaction &  Interdependence
Biology HL
Biology HL

Theme C - Interaction & Interdependence

Unlocking Plant Growth Auxin & Cytokinin Interaction

Word Count Emoji
509 words
Reading Time Emoji
3 mins read
Updated at Emoji
Last edited on 14th Jun 2024

Table of content

Auxin & Cytokinin - The Dynamic Duo 📌

  • What are they? Auxin and cytokinin are phytohormones. Think of them as the plant's growth management team!

  • Where do they come from?

    • Auxin: Think of the shoot tips as auxin factories. After production, it takes a road trip down shoots and roots via the phloem (like a plant highway).
    • Cytokinin: This buddy is born in root tips and travels up the plant's roots into the shoots using the xylem.

🌍 Real-world example: Imagine auxin and cytokinin as two managers in a factory. One focuses on upper-level stuff (the shoots) while the other deals with ground floor operations (the roots).

Balancing Act 📌

  • The amounts of auxin and cytokinin in a plant balance root and shoot growth. It's like adjusting volume levels in music 🎵: More bass (auxin) = strong roots, More treble (cytokinin) = lively shoots.

  • Sometimes they’re the ultimate teamwork goals (synergism) and work together. But sometimes, they're like siblings fighting for the TV remote (antagonism) and work against each other.

When Plants Get a Haircut... by Animals 📌

  • If an animal snacks on a plant's main shoot (rude!), auxin production drops.
  • Result? The roots grow slower, and the plant starts promoting growth in its lateral buds. It's like if one singer in a band loses their voice, the backup singers step up!

🌍 Real-world example: It's like if you had a super-fast internet connection and suddenly someone cuts your wire (auxin decrease). To compensate, you start using data (lateral buds growth)!

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IB Resources
Theme C - Interaction &  Interdependence
Biology HL
Biology HL

Theme C - Interaction & Interdependence

Unlocking Plant Growth Auxin & Cytokinin Interaction

Word Count Emoji
509 words
Reading Time Emoji
3 mins read
Updated at Emoji
Last edited on 14th Jun 2024

Table of content

Auxin & Cytokinin - The Dynamic Duo 📌

  • What are they? Auxin and cytokinin are phytohormones. Think of them as the plant's growth management team!

  • Where do they come from?

    • Auxin: Think of the shoot tips as auxin factories. After production, it takes a road trip down shoots and roots via the phloem (like a plant highway).
    • Cytokinin: This buddy is born in root tips and travels up the plant's roots into the shoots using the xylem.

🌍 Real-world example: Imagine auxin and cytokinin as two managers in a factory. One focuses on upper-level stuff (the shoots) while the other deals with ground floor operations (the roots).

Balancing Act 📌

  • The amounts of auxin and cytokinin in a plant balance root and shoot growth. It's like adjusting volume levels in music 🎵: More bass (auxin) = strong roots, More treble (cytokinin) = lively shoots.

  • Sometimes they’re the ultimate teamwork goals (synergism) and work together. But sometimes, they're like siblings fighting for the TV remote (antagonism) and work against each other.

When Plants Get a Haircut... by Animals 📌

  • If an animal snacks on a plant's main shoot (rude!), auxin production drops.
  • Result? The roots grow slower, and the plant starts promoting growth in its lateral buds. It's like if one singer in a band loses their voice, the backup singers step up!

🌍 Real-world example: It's like if you had a super-fast internet connection and suddenly someone cuts your wire (auxin decrease). To compensate, you start using data (lateral buds growth)!

Unlock the Full Content! File Is Locked Emoji

Dive deeper and gain exclusive access to premium files of Biology HL. Subscribe now and get closer to that 45 🌟