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 D - Continuity & Change
Biology HL
Biology HL

Theme D - Continuity & Change

Unlock the Secrets of Cell Growth in Interphase!

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

Table of content

What's the Buzz About? 🤔

Interphase is the "chill" phase of the cell cycle where a cell is not dividing via mitosis or meiosis. Think of it like a cell's daily life: eating, growing, and getting ready for the next big event, which could be cell division.

DNA - The Director's Script 🎬

  • Heterochromatin: This is like the "deleted scenes" part of the DNA. It stays tightly packed because the cell doesn't need those genes right now.
  • Chromatin: Think of this as the "main script" for the cell's activities. The DNA loosens up so it can be read and turned into RNA.

Real-World Example 🌍

It's like when you declutter your room. You shove things you don't need right now (Heterochromatin) into the closet and keep out things you need (Chromatin) to make life easier.

Protein Synthesis - The Auditions 🎭

  • Once DNA is loosened up (as chromatin), it can be transcribed into mRNA. Then, it's "showtime" for the mRNA as it gets translated into proteins!

Real-World Example 🌍

Just like reading a recipe (transcription) to bake a cake (translation). Voila! You've got proteins (the cake).

Getting Bigger & Better 🏋️

  • The cell needs to double in size during interphase!
  • DNA is doubled through replication.
  • More cytoplasm is made.
  • Cell membrane area also increases; so the cell needs extra building materials like phospholipids, membrane proteins, and cholesterol.

Real-World Example 🌍

You're setting up for a big party; you need more food, chairs, and a bigger tent. Just like that, the cell needs to bulk up for the big event (cell division).

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IB Resources
Theme D - Continuity & Change
Biology HL
Biology HL

Theme D - Continuity & Change

Unlock the Secrets of Cell Growth in Interphase!

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

Table of content

What's the Buzz About? 🤔

Interphase is the "chill" phase of the cell cycle where a cell is not dividing via mitosis or meiosis. Think of it like a cell's daily life: eating, growing, and getting ready for the next big event, which could be cell division.

DNA - The Director's Script 🎬

  • Heterochromatin: This is like the "deleted scenes" part of the DNA. It stays tightly packed because the cell doesn't need those genes right now.
  • Chromatin: Think of this as the "main script" for the cell's activities. The DNA loosens up so it can be read and turned into RNA.

Real-World Example 🌍

It's like when you declutter your room. You shove things you don't need right now (Heterochromatin) into the closet and keep out things you need (Chromatin) to make life easier.

Protein Synthesis - The Auditions 🎭

  • Once DNA is loosened up (as chromatin), it can be transcribed into mRNA. Then, it's "showtime" for the mRNA as it gets translated into proteins!

Real-World Example 🌍

Just like reading a recipe (transcription) to bake a cake (translation). Voila! You've got proteins (the cake).

Getting Bigger & Better 🏋️

  • The cell needs to double in size during interphase!
  • DNA is doubled through replication.
  • More cytoplasm is made.
  • Cell membrane area also increases; so the cell needs extra building materials like phospholipids, membrane proteins, and cholesterol.

Real-World Example 🌍

You're setting up for a big party; you need more food, chairs, and a bigger tent. Just like that, the cell needs to bulk up for the big event (cell division).

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 🌟