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 B - Form & Function
Biology HL
Biology HL

Theme B - Form & Function

Unlocking The Mysteries Of The Golgi Apparatus

Word Count Emoji
372 words
Reading Time Emoji
2 mins read
Updated at Emoji
Last edited on 5th Nov 2024

Table of content

What is it? 📦

  • Golgi Apparatus: A stack of flattened, pancake-like sacs (called cisternae).
  • Main Role: Processes polypeptides made by the rough endoplasmic reticulum (rER).

Journey of a polypeptide 🚖

  • Transport: Polypeptides hitch a ride from the rER inside tiny bubble-like vesicles.
  • Remodeling: Imagine polypeptides as blank t-shirts. Inside the cisternae, they get designed! They:
    • Might get a 'carbohydrate sticker' making them a glycoprotein.
    • Sometimes, a sprinkle of phosphate or sulfate is added for an extra touch.
  • Team Assembly: Polypeptides can join others to establish the quaternary structure of proteins. Think of it like building a LEGO set from different pieces!

End of the trip? 🎁

Once a protein's makeover is complete, it's packed and sent off in a vesicle to

  • Lysosome or a food vacuole (like a recycling center or a food pantry).
  • Plasma membrane if it's being secreted out. For example, imagine pancreas cells sending out digestive enzymes like chefs delivering food!

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IB Resources
Theme B - Form & Function
Biology HL
Biology HL

Theme B - Form & Function

Unlocking The Mysteries Of The Golgi Apparatus

Word Count Emoji
372 words
Reading Time Emoji
2 mins read
Updated at Emoji
Last edited on 5th Nov 2024

Table of content

What is it? 📦

  • Golgi Apparatus: A stack of flattened, pancake-like sacs (called cisternae).
  • Main Role: Processes polypeptides made by the rough endoplasmic reticulum (rER).

Journey of a polypeptide 🚖

  • Transport: Polypeptides hitch a ride from the rER inside tiny bubble-like vesicles.
  • Remodeling: Imagine polypeptides as blank t-shirts. Inside the cisternae, they get designed! They:
    • Might get a 'carbohydrate sticker' making them a glycoprotein.
    • Sometimes, a sprinkle of phosphate or sulfate is added for an extra touch.
  • Team Assembly: Polypeptides can join others to establish the quaternary structure of proteins. Think of it like building a LEGO set from different pieces!

End of the trip? 🎁

Once a protein's makeover is complete, it's packed and sent off in a vesicle to

  • Lysosome or a food vacuole (like a recycling center or a food pantry).
  • Plasma membrane if it's being secreted out. For example, imagine pancreas cells sending out digestive enzymes like chefs delivering food!

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 🌟