this presentation is depending on Cambridge syllabus of 2016- 2018 for biology 610

1. Cambridge IGCSE Biology
2- organisation of organisms
Biology
Cambridge IGCSE Biology

3. 2.1 cell structure and organisation

4. Cell membrane function
It is controlling the movement of substances in and
out of the cell ( semi permeable )
2.1 cell structure and organisation
Nucleus function
Keep the genetic information for one generation to other
Because of DNA
Helps cell to produce suitable proteins

5. Cytoplasm function
Many different metabolic reactions take place in it
2.1 cell structure and organisation
chloroplast function
It contains chlorophyll to absorb Light energy for
PHOTOSYNTHESIS
Vacuole function
It helps plant cells to keep in shape
Helps in water movement by osmosis

6. Ribosome
It is small dot attached to network of membrane runs
through cytoplasm called ( rough endoplasmic reticulum )
Ribosome function
It is the place where proteins are made
2.1 cell structure and organisation
Extended

7. Mitochondria
It is found all cells except ( prokaryotic cell )
It is the power house of the cell
It is the center of aerobic respiration ( glucose + O2)
It is found in large number in cells which need a lot of
energy such as ( muscles – sperm – neurons
2.1 cell structure and organisation
Extended

8. 2.2 Levels of organisation
Types of cell Where it is found Function
Ciliated cells Lining the trachea
and bronchi
Move mucus
upwards
Root hair cells Near the end of
plant root
Absorb water and
mineral
Xylem vessels In root , stem and
leaf
Transport water
and mineral
Support plant
Palisade cells In the plant leaf photosynthesis
Types of cell Where it is found Function
Nerve cells In body animals Transport in
formation in
electrical impulse
Root hair cells Near the end of
plant root
Absorb water and
mineral
Red blood cells In the blood of
mammals
Transport Oxygen
Sperm and egg
cells
In testes and
ovaries
Fuse together to
form zygot

9. 2.2 Levels of organisation
Tissue is a group of cells with similar
structures, working together to perform a
shared function
Organ is a structure made up of a group
of tissues, working together to perform
specific functions
•
Organ system is a group of organs with
related functions, working together to
perform body functions

10. 2.2 Levels of organisation

11. 2.2 Levels of organisation
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