AQA Additional Science: Biology (B2): Cell Division (Mitosis and Meiosis)

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  • Created by: Belvast
  • Created on: 04-05-13 11:15

Cell Division

There are two types of cell division – Mitosis and Meiosis.

Learn to differentiate the two by remembering that MIT in the word Mitosis stands for Making Identical Two, whereas ME in Meiosis stands for Making Eggs.

Cell division, needed for growth of an organism or for the repair of damaged tissues, happens by Mitosis. Mitosis is asexual cell division where two identical cells are formed. A cell reproduces itself by splitting to form two identical offspring.

 

  Division of cell (Mitosis):


1) When the cell gets the signal to divide, a copy of each of the 46 chromosomes (chromosomes contain genes/alleles) in 23 pairs is made, resulting in 92 chromosomes. The left chromosome is a copy of the right chromosome and so on.

2) Cell fibres pull the chromosomes apart.

3) The cell splits into two as the membranes form around each set of…

Comments

S_dg11

g

lisa linsdell

Good revision notes on cell division. Useful for Any exam board that has this in its spec. Suitable for Higher papers.

sana kaddo

I love food because it reminds me of cupcakes which remind me of food hahahhha

I also love to study meosis so this post is really good for me and the food that i like to eat

also somtimes in my free time i like to do as i am doing so please excuse my bordem

BUT all in all this post is amazing... WAIT... isit even categorised as a post.

Dunno

OH WELL!!!

anyway my mum is calling me so i need to go i think 

she might not let me have food and cupcakes if i dont go now 

soory but beyyyyyy

it was nice meeting you though

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