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YOUR NOTES
IGCSE Biology CIE
2. Organisation of the Organism
CONTENTS
2.1 Cell Structure & Size of Specimens
2.1.1 Cell Structure
2.1.2 Organisation of Cells
2.1.3 Magnification Formula
2.1.4 Converting Between Units: Extended
Page 1 of 26
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2.1 Cell Structure & Size of Specimens YOUR NOTES
2.1.1 Cell Structure
Animal & Plant Cells
Animals
The main features of animals:
They are multicellular
Their cells contain a nucleus with a distinct membrane
Their cells do not have cellulose cell walls
Their cells do not contain chloroplasts (so they are unable to carry out
photosynthesis)
They feed on organic substances made by other living things
They often store carbohydrates as glycogen
They usually have nervous coordination
They are able to move from place to place
A typical animal cell
Plants
The main features of plants:
They are multicellular
Their cells contain a nucleus with a distinct membrane
Their cells have cell walls made out of cellulose
Their cells contain chloroplasts (so they can carry out photosynthesis)
They feed by photosynthesis
Page 2 of 26
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They store carbohydrates as starch or sucrose YOUR NOTES
They do not have nervous coordination
A typical plant cell
Page 3 of 26
© 2015-2021 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers
YOUR NOTES
IGCSE Biology CIE
2. Organisation of the Organism
CONTENTS
2.1 Cell Structure & Size of Specimens
2.1.1 Cell Structure
2.1.2 Organisation of Cells
2.1.3 Magnification Formula
2.1.4 Converting Between Units: Extended
Page 1 of 26
© 2015-2021 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers
, Head to savemyexams.co.uk for more awesome resources
2.1 Cell Structure & Size of Specimens YOUR NOTES
2.1.1 Cell Structure
Animal & Plant Cells
Animals
The main features of animals:
They are multicellular
Their cells contain a nucleus with a distinct membrane
Their cells do not have cellulose cell walls
Their cells do not contain chloroplasts (so they are unable to carry out
photosynthesis)
They feed on organic substances made by other living things
They often store carbohydrates as glycogen
They usually have nervous coordination
They are able to move from place to place
A typical animal cell
Plants
The main features of plants:
They are multicellular
Their cells contain a nucleus with a distinct membrane
Their cells have cell walls made out of cellulose
Their cells contain chloroplasts (so they can carry out photosynthesis)
They feed by photosynthesis
Page 2 of 26
© 2015-2021 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers
, Head to savemyexams.co.uk for more awesome resources
They store carbohydrates as starch or sucrose YOUR NOTES
They do not have nervous coordination
A typical plant cell
Page 3 of 26
© 2015-2021 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers
