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 D - Continuity & Change
Biology SL
Biology SL

Theme D - Continuity & Change

Unlocking Cell Division Mitosis & Meiosis

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

Table of content

When Cells Divide & Forget Their Nucleus! 😱

  • If a cell divides and leaves out its nucleus, it's like leaving home without your brain! One cell would have the nucleus (the brainy one!) while the other is anucleate (no nucleus = no fun).

  • Real World Example: Think of red blood cells! They're like superheroes without a brain (no nucleus). They can only survive for about 120 days. After that, they’re out!

Now, let's dive deep into the world of mitosis & meiosis! 🌍🕺💃

Mitosis - The Copycat Technique 🐱‍🐉

  • Role: Creates genetically identical cells. It's like making an exact clone of yourself!

  • Chromosome Talk: Humans have a "2n" diploid number of chromosomes (that's 46 in total!). And in mitosis, the child cells get the same number of chromosomes as the parent. Basically, the family resemblance is on point! 🧬

  • Keeping the Genome Game Strong: Every cell in our body needs the complete set of genes to function properly. Mitosis makes sure every cell gets the full set, ensuring no cell feels left out. It's like ensuring every player in a football team gets a uniform.

  • Real World Example: If you've ever been fascinated by starfish regenerating lost arms, thank mitosis! They use this process for growth and healing.

  • Asexual Reproduction: For organisms that don't mate but reproduce by copying themselves, mitosis is the MVP. Offspring inherit the successful genome without any changes.

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

Theme D - Continuity & Change

Unlocking Cell Division Mitosis & Meiosis

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

Table of content

When Cells Divide & Forget Their Nucleus! 😱

  • If a cell divides and leaves out its nucleus, it's like leaving home without your brain! One cell would have the nucleus (the brainy one!) while the other is anucleate (no nucleus = no fun).

  • Real World Example: Think of red blood cells! They're like superheroes without a brain (no nucleus). They can only survive for about 120 days. After that, they’re out!

Now, let's dive deep into the world of mitosis & meiosis! 🌍🕺💃

Mitosis - The Copycat Technique 🐱‍🐉

  • Role: Creates genetically identical cells. It's like making an exact clone of yourself!

  • Chromosome Talk: Humans have a "2n" diploid number of chromosomes (that's 46 in total!). And in mitosis, the child cells get the same number of chromosomes as the parent. Basically, the family resemblance is on point! 🧬

  • Keeping the Genome Game Strong: Every cell in our body needs the complete set of genes to function properly. Mitosis makes sure every cell gets the full set, ensuring no cell feels left out. It's like ensuring every player in a football team gets a uniform.

  • Real World Example: If you've ever been fascinated by starfish regenerating lost arms, thank mitosis! They use this process for growth and healing.

  • Asexual Reproduction: For organisms that don't mate but reproduce by copying themselves, mitosis is the MVP. Offspring inherit the successful genome without any changes.

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 🌟