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Year 9 Unicellular vs Multicellular Organism Class Notes

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Enhance your biology knowledge with our detailed Year 9 Unicellular vs Multicellular Organism Class Notes. This invaluable resource delves into the distinctions between unicellular and multicellular organisms, exploring their structures, functions, and roles in various ecosystems. Our notes provide clear definitions, vivid illustrations, and real-world examples to help students grasp these fundamental biological concepts. Ideal for revision and exam prep, these notes are perfect for Year 9 students, educators, and homeschooling families. Access now to boost your understanding and excel in your biology studies.

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Unicellular vs Multicellular Organism
revision notes !!
PROKARYOTIC VS EUKARYOTIC
• Eukaryotic cells: cells which have a nucleus which is enclosed inside of a membrane.
• Prokaryotic cells: cells which DO NOT have a membrane surrounding their nucleus.
• Not the same as unicellular vs multicellular


BACTERIA CELL




MITOSIS
• Unicellular organisms reproduce through MITOSIS (cell division).
• This is when a single cell splits its nucleus and divides into two identical cells.
• Mitosis happens in multicellular organisms too when we need to create more cells.
e.g. cancer is a form of uncontrolled mitosis.


CELL THEORY
• All living things are made up of one or more cells.
• Cells are the basic building blocks of all life.
• New cells are produced from existing cells (Cell division – Mitosis).

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