Biology SL
Biology SL
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 SL
Biology SL

Theme C - Interaction & Interdependence

Unlock Plant Growth: Secrets of Auxin Efflux Carriers!

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

Table of content

Spotlight - Auxin Efflux Carriers & The Dance of Phytohormones 🌟

Auxin: The Plant Growth Star

  • What is Auxin? 🌱
    • A phytohormone (plant hormone).
    • Role? Helping stems grow & making plants dance towards light (phototropism)!

Real-world example: Imagine you’re a plant. On a sunny day, you'd stretch your leaves & stems towards the sun. This dance move? Thanks to auxin!🌞

The Auxin's Secret Entry Move

  • Auxin has a secret password: its carboxyl group (COOH).
  • How does it work? 🕵️‍♂️
    • Auxin slips into plant cells easily when its carboxyl group stays whole.
    • Once inside, surprise! The plant cell is like a mini club with alkaline vibes. Here, auxin drops a proton & gets a negative groove (COO–).
    • Now, with this new charged look, auxin can't easily leave.

Real-world example: Think of auxin like a guest at a party. Once inside, it changes its outfit (loses a proton) and can't use the exit door without some help!

The Great Auxin Escape - Efflux Carriers to the Rescue

  • What's an Auxin Efflux Carrier? 🚀
    • Special proteins in plant cells.
    • Job? Help auxin, now with its charged look, escape out into the party yard (cell wall).
  • What happens next? 🎉
    • Once outside in the cell wall, which is more like an acidic lounge, auxin changes back to its original, uncharged style.
    • From here, auxin can groove into a neighboring cell.

Real-world example: Imagine auxin as a VIP guest at a music festival. The efflux carriers are like the festival staff who escort VIPs from one stage (cell) to another!

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

Theme C - Interaction & Interdependence

Unlock Plant Growth: Secrets of Auxin Efflux Carriers!

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

Table of content

Spotlight - Auxin Efflux Carriers & The Dance of Phytohormones 🌟

Auxin: The Plant Growth Star

  • What is Auxin? 🌱
    • A phytohormone (plant hormone).
    • Role? Helping stems grow & making plants dance towards light (phototropism)!

Real-world example: Imagine you’re a plant. On a sunny day, you'd stretch your leaves & stems towards the sun. This dance move? Thanks to auxin!🌞

The Auxin's Secret Entry Move

  • Auxin has a secret password: its carboxyl group (COOH).
  • How does it work? 🕵️‍♂️
    • Auxin slips into plant cells easily when its carboxyl group stays whole.
    • Once inside, surprise! The plant cell is like a mini club with alkaline vibes. Here, auxin drops a proton & gets a negative groove (COO–).
    • Now, with this new charged look, auxin can't easily leave.

Real-world example: Think of auxin like a guest at a party. Once inside, it changes its outfit (loses a proton) and can't use the exit door without some help!

The Great Auxin Escape - Efflux Carriers to the Rescue

  • What's an Auxin Efflux Carrier? 🚀
    • Special proteins in plant cells.
    • Job? Help auxin, now with its charged look, escape out into the party yard (cell wall).
  • What happens next? 🎉
    • Once outside in the cell wall, which is more like an acidic lounge, auxin changes back to its original, uncharged style.
    • From here, auxin can groove into a neighboring cell.

Real-world example: Imagine auxin as a VIP guest at a music festival. The efflux carriers are like the festival staff who escort VIPs from one stage (cell) to another!

Unlock the Full Content! File Is Locked Emoji

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