Biology HL
4
Chapters
553
Notes
Theme A - Unity & diversity
Theme B - Form & Function
Theme C - Interaction & Interdependence
Theme D - Continuity & Change
Biology HL
Theme A - Unity & diversity
Prokaryotes Vs. Eukaryotes Discovering Cell Structures
435 words
3 mins read
Last edited on 5th Nov 2024
Table of content
What's the difference between prokaryotes & eukaryotes?
- Prokaryotes (e.g., Bacteria)
- No nucleus 🧠❌
- Simple structure
- Small size
- Found in soil, water, skin, and hot volcanic areas 🌋
- Example: Think of them as the minimalist tiny homes of the cell world!
- Eukaryotes (e.g., Plants, Animals, Fungi, Amoeba)
- Has a nucleus (home for chromosomes) 🧠✅
- Contains special parts called organelles (like organs in our body!)
- Example: More like a mansion, with various rooms and functions!
The building blocks of prokaryotic cells
- Plasma Membrane: The gatekeeper of the cell, deciding what comes in and out
- Cell Wall: Contains peptidoglycan, supports the cell like a strong armor 🛡️
- Cytoplasm: One large chamber filled with a mix of biochemicals, like a smoothie of life's essentials
- Ribosomes: Smaller than in eukaryotes (70S vs 80S); the cell's chefs cooking up proteins 🍳
The DNA situation
- Prokaryotes: DNA forms a loop or circle and is "naked" (not covered in proteins)
- Eukaryotes: DNA is like a well-dressed celebrity, covered in proteins 🎩
- Nucleoid in Prokaryotes: Contains DNA but is not a true nucleus
Unlock the Full Content! 
Dive deeper and gain exclusive access to premium files of Biology HL. Subscribe now and get closer to that 45 🌟
Biology HL
Theme A - Unity & diversity
Prokaryotes Vs. Eukaryotes Discovering Cell Structures
435 words
3 mins read
Last edited on 5th Nov 2024
Table of content
What's the difference between prokaryotes & eukaryotes?
- Prokaryotes (e.g., Bacteria)
- No nucleus 🧠❌
- Simple structure
- Small size
- Found in soil, water, skin, and hot volcanic areas 🌋
- Example: Think of them as the minimalist tiny homes of the cell world!
- Eukaryotes (e.g., Plants, Animals, Fungi, Amoeba)
- Has a nucleus (home for chromosomes) 🧠✅
- Contains special parts called organelles (like organs in our body!)
- Example: More like a mansion, with various rooms and functions!
The building blocks of prokaryotic cells
- Plasma Membrane: The gatekeeper of the cell, deciding what comes in and out
- Cell Wall: Contains peptidoglycan, supports the cell like a strong armor 🛡️
- Cytoplasm: One large chamber filled with a mix of biochemicals, like a smoothie of life's essentials
- Ribosomes: Smaller than in eukaryotes (70S vs 80S); the cell's chefs cooking up proteins 🍳
The DNA situation
- Prokaryotes: DNA forms a loop or circle and is "naked" (not covered in proteins)
- Eukaryotes: DNA is like a well-dressed celebrity, covered in proteins 🎩
- Nucleoid in Prokaryotes: Contains DNA but is not a true nucleus
Unlock the Full Content!
Dive deeper and gain exclusive access to premium files of Biology HL. Subscribe now and get closer to that 45 🌟