1. ALICE CHERUBINI & MARTA SOAVE 2°DALICE CHERUBINI & MARTA SOAVE 2°D

2. INDICE:INDICE:
* Introduction
* The Cells
* Specialised Cells
* Tissues
* Organs
* Organs Sistems
* Diffusion
* Osmosis
* Bibliography

3. There are two types of cells:
INTRODUCTIOINTRODUCTIO
NN
prokaryoticeukaryotic
1. Bacteria
2. archaea
1. protists,
2. fungi,
3. plants,
4. animals

4. THE CELLSTHE CELLS
1. All organisms are made of cells
2. Unicellular
3. Multi-cellular
4. Animal cells and plant cells
5. Diffusion

5. nucleus
cytoplasm
Cell membrane
mitochondria
ribosomes
Function of cells which animal and plant cells have in common

6. Plant cells also have extra parts: cell wall, chloroplasts, permanent vacuole

7. The different of animal and plant cells:

8. SPECIALISED CELLSSPECIALISED CELLS
Specialised animal cells
Red blood cells
Nerve cells
Female reproductive
cell (egg cell)
Male reproductive
cell (sperm cell)

9. Specialised animal cells
Root hair cell
Leaf cell
SPECIALISED CELLSSPECIALISED CELLS

10. TISSUESTISSUES
1. Muscle
2. The lining of the intestine
3. The lining of the lungs
4. Phloem (tubes that carry dissolved sugar
around a plant)
5. Root hair tissue (for plants to take up
water and minerals from the soil)

11. ORGANSORGANS
1. Heart
2. Lung
3. Stomach
4. Brain
5. Leaf
6. Root

12. ORGANS SISTEMSORGANS SISTEMS
1. Circulatory system
2. Respiratory system
3. Digestive system
4. Nervous system
5. Reproductive system
6. Leaf canopy

13. DIFFUSIONDIFFUSION
Diffusion: The
movement of
particles (molecules
or ions) from an area
of higher
concentration to an
area of lower

14. Examples of diffusion down concentration gradients
Location Particles move From To
Gut Digested food
products
Gut cavity Blood in capillary of
villus
Lungs Oxygen Alveolar air space Blood circulating
around the lungs

15. OSMOSISOSMOSIS
Water can move across
cell membranes because
of osmosis. For osmosis
to happen you need:
• two solutions with
different
concentrations
• a partially permeable
membrane to separate
them

16. BIBLIOGRAPHYBIBLIOGRAPHY
Focus on Science
http://www.bbc.co.uk/schools/gcsebitesize/science/add_aqa/cells/cells1.shtml