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 Protein Structures Polar Vs Non-Polar Amino Acids

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

Table of content

The two types of amino acid guests

🔵 Polar/Charged Amino Acids (Hydrophilic)
- These love water! 💧 - Imagine them as the outgoing party-goers who like to hang out near the pool at a summer party.

 

🔴 Non-Polar Amino Acids (Hydrophobic)
- They prefer to avoid water. - Think of them as those folks who'd rather stay indoors, away from the water games.

The globular protein house party 🏠

  • Located either in the cytoplasm or in some watery area outside cells.
  • Setting up the Scene: The exterior walls of the house (the protein surface) have the hydrophilic amino acids, since they're in contact with water. The introverted, hydrophobic amino acids? They’re chilling in the center of the party, away from the water.
  • Why this setup? It's like arranging the seating to avoid drama! This configuration stabilizes the protein structure.

Special protein houses with non-polar patios

  • Some proteins frequently mingle with non-polar substances.
  • They have hydrophobic amino acids on parts of their surface, like decking for a house.
  • Example: Integral proteins in cell membranes are like houses built over water. The hydrophobic parts touch the non-polar core of the membrane. Just like stilts on a waterfront house, it keeps them stable and positioned correctly.

The transmembrane protein condo

  • These are proteins that go across the membrane.
  • Their setup is like a house with a front yard (hydrophilic), a main indoor area (hydrophobic belt), and a backyard (hydrophilic).
  • Bonus: This design ensures the protein stays in the right spot in the membrane and does its job efficiently.

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

Theme B - Form & Function

Unlocking Protein Structures Polar Vs Non-Polar Amino Acids

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

Table of content

The two types of amino acid guests

🔵 Polar/Charged Amino Acids (Hydrophilic)
- These love water! 💧 - Imagine them as the outgoing party-goers who like to hang out near the pool at a summer party.

 

🔴 Non-Polar Amino Acids (Hydrophobic)
- They prefer to avoid water. - Think of them as those folks who'd rather stay indoors, away from the water games.

The globular protein house party 🏠

  • Located either in the cytoplasm or in some watery area outside cells.
  • Setting up the Scene: The exterior walls of the house (the protein surface) have the hydrophilic amino acids, since they're in contact with water. The introverted, hydrophobic amino acids? They’re chilling in the center of the party, away from the water.
  • Why this setup? It's like arranging the seating to avoid drama! This configuration stabilizes the protein structure.

Special protein houses with non-polar patios

  • Some proteins frequently mingle with non-polar substances.
  • They have hydrophobic amino acids on parts of their surface, like decking for a house.
  • Example: Integral proteins in cell membranes are like houses built over water. The hydrophobic parts touch the non-polar core of the membrane. Just like stilts on a waterfront house, it keeps them stable and positioned correctly.

The transmembrane protein condo

  • These are proteins that go across the membrane.
  • Their setup is like a house with a front yard (hydrophilic), a main indoor area (hydrophobic belt), and a backyard (hydrophilic).
  • Bonus: This design ensures the protein stays in the right spot in the membrane and does its job efficiently.

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 🌟