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B1 Cell Biology - Mitosis, diffusion and osmosis
AQA GCSE Paper 1
5
Biology
9th Grade
10/11/2021

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Term
What is the first stage of mitosis?
Definition
The cell grows and copies all its DNA, mitochondria and ribosomes
Term
What is the second stage of mitosis?
Definition
The nucleus dissolves and the copied chromosomes pair up.
Term
What is the third stage of mitosis?
Definition
The chromosomes are pulled to opposite sides of the cell.
Term
What is the fourth stage of mitosis?
Definition
The cytoplasm and cell membrane divide making two identical cells.
Term
List factors of diffusion?
Definition
-the higher the concentration gradient, the quicker the rate of diffusion
-the higher the temperature, the more kinetic energy the particles will have, so they will move and mix more quickly.
-the greater the surface area, the faster the rate of diffusion.
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