Thursday, 3 January 2013

2.3 describe the functions of the nucleus, cytoplasm, cell membrane, cell wall, chloroplast and vacuole


Within a cell there are different organelles, the above are as such.

The nucleus, often thought as as the centre of a cell, contains all the genetic 
information of a cell (the cells chromosomes), it controls the activities of the cell.

Cytoplasm surrounds the nucleus within the cell walls. It is where reactions take place in the cell.

The cell membrane controls the movement of chemicals in and out of the cell.

The cell wall, which is made up of cellulose, strengthens the cell.

Chloroplast contain chlorophyll, and are used in photosynthesis.

Vacuole keeps the cell turgid (basically keeps the cell  filled with water.)
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16 comments:

  1. Anonymous14 July 2015 at 09:26

    Thanks this really helped me

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  2. Anonymous14 July 2015 at 09:26

    This comment has been removed by the author.

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  3. Anonymous23 October 2015 at 12:30

    Thanks! Btw, Love this blog background!

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  4. Anonymous23 October 2015 at 12:31

    Oh and the day the other comment was was my birthday! How crazy is that?!

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  5. Unknown8 January 2016 at 11:15

    Hannah, your blog is incredibly helpful and really full of knowledge. Do you mind me asking how you did in your Biology, Physics and Chemistry GCSE ??

    ReplyDelete
  6. Unknown18 January 2016 at 08:35

    Vacuole also contains cell sap

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  7. Unknown29 May 2016 at 04:37

    Cell wall is not necessarily made from cellulose (chitin with fungi). This blog is amazing

    ReplyDelete
  8. Unknown7 February 2017 at 08:38

    Hannah i love u!!!<3

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  9. Mike Tsang26 June 2017 at 02:33

    The Biology Syllabus has changed.... New Syllabus Blog:

    http://igcse-biology-2017.blogspot.hk

    ReplyDelete
  10. SophieRice26 June 2017 at 06:36

    This comment has been removed by the author.

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  11. SophieRice26 June 2017 at 07:17

    Find more at...

    http://igcse-biology-notes.blogspot.hk/2017/06/23-describe-functions-of-nucleus.html

    ReplyDelete
  12. Unknown3 January 2018 at 01:31

    It proved to be Very helpful to me and I am sure to all the commentators here! lgals9 elisa

    ReplyDelete
  13. Anonymous5 September 2018 at 07:44

    what are ribosomes and mitochondria?

    ReplyDelete
  14. Anonymous19 April 2019 at 06:32

    ur a god

    ReplyDelete

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