Cells are the basic building blocks of all animals and plants. Cells contain a cell membrane, cytoplasm, and nucleus. Plant cells also contain chloroplasts, a vacuole, and cell wall. Cells can be specialized, such as root hair cells, leaf cells, red blood cells, and nerve cells in animals or phloem and xylem tissues in plants. Cells combine to form tissues, organs, and organ systems.

1. Cells

2. Cells are very small and are the basic building blocks of all
animals and plants.

3. Cells:
cell membrane, cytoplasm, nucleus
only plant cells:
chloroplasts, vacuole, cell wall
• Animal cell • Plant cell

4. Specialised plants cells
• Root hair cell • Leaf cell

5. Specialised animal cells
• Red blood cells • Nerve cells

6. Specialised animal cells
• Female reproductive cell • Male reproductive cell
(egg cell) (sperm cell)

7. Cells, tissues, organs and
systems
• Tissues:
• muscle
• the lining of the
intestine
• the lining of the lungs

8. Cells, tissues, organs and
systems of plants
• phloem root hair tissue
• root hair tissue

9. Organs
• heart • lung

10. Organs
• stomach • brain

11. Plant’s Organs
• Leaf • Root

12. Organ systems
• Circulatory system • Respiratory system

13. Organ systems
• Digestive system • Nervous system

14. Organ systems
Reproductive system
• Woman • Man

15. Plant’s Organ systems
• Leaf canopy

16. Link delle immagini
• http://www.google.it/imgres?q=cells&um=1&hl=it&sa=N&biw=1920&bih=881&tbm=isch&tbnid=3VT4vPSLw2QTBM:&imgrefurl=http://www.etap.org/demo/grade7_science/instruct
ion1tutor.html&docid=kqBEIX1ymWEzkM&imgurl=http://www.etap.org/demo/grade7_science/Image28.jpg&w=663&h=576&ei=UvCgUO3NNsfL4ASSgIGoBA&zoom=1&iact=rc&dur=
457&sig=101630065824633132665&page=1&tbnh=139&tbnw=160&start=0&ndsp=45&ved=1t:429,r:13,s:20,i:186&tx=94&ty=41
• http://www.google.it/imgres?q=cells&um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=fVZTQlKkrunTWM:&imgrefurl=http://wakeup-world.com/2011/11/07/removing-old-cells-
could-extend-human-life/&docid=i-kXV4bAE5wI4M&imgurl=http://wakeup-world.com/wp-
content/uploads/2011/11/cells.jpg&w=400&h=300&ei=XPGgUJjxKKn64QSvp4HoCw&zoom=1&iact=rc&dur=718&sig=101630065824633132665&page=1&tbnh=136&tbnw=186&start
=0&ndsp=45&ved=1t:429,r:7,s:0,i:101&tx=118&ty=47
• http://www.google.it/imgres?q=parts+of+cells&um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=VXI27OK3wSJBCM:&imgrefurl=http://nursingcrib.com/anatomy-and-
physiology/anatomy-and-physiology-cells/&docid=W02BVD1oHtz4rM&imgurl=http://nursingcrib.com/wp-
content/uploads/cell2.jpg%253F9d7bd4&w=500&h=393&ei=3fGgUOqeNfT64QStuoDgAg&zoom=1&iact=hc&dur=61&sig=101630065824633132665&page=1&tbnh=139&tbnw=171&s
tart=0&ndsp=43&ved=1t:429,r:8,s:0,i:90&tx=189&ty=126&vpx=177&vpy=247&hovh=199&hovw=253
• http://www.google.it/imgres?q=plants+cells&um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=IvPoz1H6sVsrnM:&imgrefurl=http://micro.magnet.fsu.edu/cells/plantcell.html&doc
id=Eom7j6fVOGQ3tM&imgurl=http://micro.magnet.fsu.edu/cells/plants/images/plantcell.jpg&w=435&h=356&ei=V_OgUJyIO6iD4ASAg4GIBw&zoom=1&iact=rc&dur=334&sig=101630
065824633132665&page=1&tbnh=144&tbnw=176&start=0&ndsp=44&ved=1t:429,r:3,s:0,i:75&tx=131&ty=59
• http://www.google.it/imgres?start=98&um=1&hl=it&sa=N&biw=1920&bih=881&tbm=isch&tbnid=y8LbEdKuIGnjFM:&imgrefurl=http://lifesciencedigest.com/2010/09/06/investment-
opportunities-with-five-frontline-therapies-for-aml/&docid=N6a2COQN3DC4kM&imgurl=http://lifesciencedigest.com/wp-content/uploads/2009/12/473462-
small.jpg&w=2309&h=1732&ei=r_SgUOuIJceB4gSPuYD4Ag&zoom=1&iact=rc&dur=256&sig=101630065824633132665&page=3&tbnh=138&tbnw=185&ndsp=55&ved=1t:429,r:23,s:10
0,i:73&tx=90&ty=69
• http://www.google.it/imgres?um=1&hl=it&sa=N&biw=1920&bih=881&tbm=isch&tbnid=BpWkNvMJ3nWO3M:&imgrefurl=http://www.photo-
dictionary.com/phrase/650/blood-cells.html&docid=rWcx0Mb-FVFOGM&imgurl=http://www.photo-
dictionary.com/photofiles/list/650/1058blood_cells.jpg&w=700&h=525&ei=e_SgULW5B4SO4gTw24CAAw&zoom=1&iact=rc&dur=232&sig=1016
30065824633132665&page=1&tbnh=140&tbnw=208&start=0&ndsp=44&ved=1t:429,r:7,s:0,i:90&tx=85&ty=88
• http://www.google.it/imgres?start=99&um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=u9oNY6llSupUNM:&imgrefurl=http://www.topnews.i
n/health/insight-regenerating-damaged-brain-cells-211515&docid=EzjpAdoIi2SqVM&imgurl=http://topnews.in/health/files/brain-
cells_3.jpg&w=600&h=450&ei=XvagUIGxHYXY4QT_9QE&zoom=1&iact=hc&dur=190&sig=101630065824633132665&page=3&tbnh=148&tbnw=1
85&ndsp=55&ved=1t:429,r:42,s:100,i:130&tx=107&ty=116&vpx=1385&vpy=371&hovh=194&hovw=259
• http://www.google.it/imgres?um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=HjOjfZKt9yzZzM:&imgrefurl=http://www.healthtechmall.com/h
ealth-news/brain-diseases-linked-to-nerve-cell-junction-defects/&docid=IygBNs4_nMBx4M&imgurl=http://www.healthtechmall.com/wp-
content/uploads/2010/07/Brain-
Disease.jpg&w=400&h=300&ei=D_agUKfZF6iE4ATVwoHwDQ&zoom=1&iact=hc&vpx=1331&vpy=443&dur=597&hovh=194&hovw=259&tx=150&t
y=110&sig=101630065824633132665&page=1&tbnh=135&tbnw=193&start=0&ndsp=44&ved=1t:429,r:2,s:20,i:135
• http://www.google.it/imgres?start=104&um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=NfjY44rZRU4jjM:&imgrefurl=http://saltmangotree.n
et/2012/05/sperms-fight-their-way-to-female-egg/&docid=jQ8D0v0iM9ZBKM&imgurl=http://saltmangotree.net/wp-
content/uploads/2012/05/Sperms-fight-their-way-to-female-egg-
300x225.jpg&w=300&h=225&ei=zvigUJCEFKqC4ATN54HoBA&zoom=1&iact=rc&dur=164&sig=101630065824633132665&page=3&tbnh=135&tb
nw=179&ndsp=55&ved=1t:429,r:23,s:100,i:73&tx=98&ty=91
• http://www.google.it/imgres?start=104&um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=G1gxmz7y21LOYM:&imgrefurl=http://www.science
alert.com.au/news/20122409-23754.html&docid=Xk0-
uBnVmK7gjM&imgurl=http://www.sciencealert.com.au/images/stories/frentusha_EggCell_iStock.jpg&w=810&h=486&ei=zvigUJCEFKqC4ATN54H
oBA&zoom=1&iact=rc&dur=241&sig=101630065824633132665&page=3&tbnh=135&tbnw=213&ndsp=55&ved=1t:429,r:15,s:100,i:49&tx=128&t
y=75

17. Link delle immagini
• http://www.google.it/imgres?um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=Au25I5-81W_wHM:&imgrefurl=http://xnsdmdn411.blogspot.com/2009/05/leaf-cell-structure-
pattern.html&docid=jN9b5EbQ1P9EFM&imgurl=http://3.bp.blogspot.com/_DUDhlpPD8X8/Sgq-5G9yjXI/AAAAAAAAAmo/XzzYUHkGQDg/s400/leaf-cells-
wallpapers_10681_1440x900.jpg&w=400&h=250&ei=F_qgUK7kJ8L-
4QShn4CgDw&zoom=1&iact=rc&dur=219&sig=101630065824633132665&page=1&tbnh=133&tbnw=226&start=0&ndsp=43&ved=1t:429,r:1,s:20,i:132&tx=136&ty=64
• http://www.google.it/imgres?um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=OrCgqR_fktMWFM:&imgrefurl=http://www.allposters.co.uk/-sp/Elodea-Leaf-Cell-with-Numerous-
Chloroplasts-Posters_i6016056_.htm&docid=Iou2eFdx7QMvgM&imgurl=http://cache2.allpostersimages.com/p/LRG/38/3815/3GBYF00Z/posters/calentine-robert-elodea-leaf-cell-with-
numerous-chloroplasts.jpg&w=400&h=300&ei=F_qgUK7kJ8L-
4QShn4CgDw&zoom=1&iact=rc&dur=377&sig=101630065824633132665&page=1&tbnh=143&tbnw=185&start=0&ndsp=43&ved=1t:429,r:8,s:0,i:90&tx=102&ty=44
• http://www.google.it/imgres?um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=XTze0uybxhqobM:&imgrefurl=http://www.pnas.org/content/103/2.cover-
expansion&docid=hVqUOwwh1MHIgM&imgurl=http://www.pnas.org/content/103/2/F1.medium.gif&w=428&h=440&ei=ofmgUOK3JcSF4AS53YGIBA&zoom=1&iact=rc&dur=235&sig=10
1630065824633132665&page=2&tbnh=153&tbnw=148&start=44&ndsp=55&ved=1t:429,r:47,s:20,i:270&tx=50&ty=60
• http://www.google.it/imgres?um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=kobE7R--Nq1-
eM:&imgrefurl=http://www.pnas.org/content/105/25/8790/F1.expansion.html&docid=mxgn_UUOkaxpRM&imgurl=http://www.pnas.org/content/105/25/8790/F1.large.jpg&w=1280&h
=768&ei=ofmgUOK3JcSF4AS53YGIBA&zoom=1&iact=hc&dur=159&sig=101630065824633132665&page=2&tbnh=141&tbnw=234&start=44&ndsp=55&ved=1t:429,r:33,s:20,i:228&tx=139
&ty=89&vpx=190&vpy=537&hovh=174&hovw=290
• https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcQu13n2oYsBE2Aq_m5aZIjeA3q5T41dh2eZxzVQ6MO2B0FPVRcq
• https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcQtl1EhDtzkLleRBk8FalFzDebno-QV-lyriCz59BoOt7JROIfX
• https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcSLzCdlwonhIHCQTCf3vQE2oYk7rY04VnnkxJ3VxbI1y6CAcTKivw
• https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcRijOvVEY9997dW1HoK_FYOazQ893rHMg09l8IPNSF-xLRgvoXKAA
• http://www.umm.edu/graphics/images/en/8682.jpg
• https://encrypted-tbn1.gstatic.com/images?q=tbn:ANd9GcQU-2dUqO6Kmp5rdMy2tZed-uOAIVPqCCdWJVRcQvow5b3Oa9uA
• https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcRA35-GuvKkBaGnr7s-RdkKEQ8Kx6-PwRdJ_IWEtDHm6c9jLbfp
• https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTXh5q9pAdFsY4VQCSkpmCD4C-fVUsG0Bvxy1o4XKEiRQmmh8lsFQ
• https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcSl6a_WQtz5-b__0Vj4t5ZgebzSMzwvYuWhi2-FuW4H7XAN1JRXrg
• http://www.google.it/imgres?q=brain&um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=Z0J1VUfJBtlSBM:&imgrefurl=http://www.webmd.com/brain/picture-of-
the-
brain&docid=EYtu00EXgLi_9M&imgurl=http://img.webmd.com/dtmcms/live/webmd/consumer_assets/site_images/articles/image_article_collections/anatomy_pag
es/brain2.jpg&w=492&h=334&ei=VBamUM70CKbk4QT6pYHQCg&zoom=1&iact=hc&vpx=1077&vpy=99&dur=259&hovh=185&hovw=273&tx=163&ty=130&sig=1016
30065824633132665&page=1&tbnh=140&tbnw=210&start=0&ndsp=45&ved=1t:429,r:5,s:0,i:147
• http://www.google.it/imgres?q=brain&um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=Z0J1VUfJBtlSBM:&imgrefurl=http://www.webmd.com/brain/picture-of-
the-
brain&docid=EYtu00EXgLi_9M&imgurl=http://img.webmd.com/dtmcms/live/webmd/consumer_assets/site_images/articles/image_article_collections/anatomy_pag
es/brain2.jpg&w=492&h=334&ei=VBamUM70CKbk4QT6pYHQCg&zoom=1&iact=hc&vpx=1077&vpy=99&dur=259&hovh=185&hovw=273&tx=163&ty=130&sig=1016
30065824633132665&page=1&tbnh=140&tbnw=210&start=0&ndsp=45&ved=1t:429,r:5,s:0,i:147

18. Link delle immagini
• http://www.google.it/imgres?q=stomach&um=1&hl=it&sa=N&biw=1920&bih=881&tbm=isch&tbnid=udAUdfBsyT6V9M:&imgrefurl=http://apbrwww5.apsu.edu/thompsonj/Anatomy%2
520%26%2520Physiology/2020/2020%2520Exam%2520Reviews/Exam%25203/CH23%2520Stomach%2520Anatomy.htm&docid=T4W5fR066PgCOM&imgurl=http://apbrwww5.apsu.edu/
thompsonj/Anatomy%252520%2526%252520Physiology/2020/2020%252520Exam%252520Reviews/Exam%2525203/stomach%252520diagram.jpg&w=482&h=409&ei=BBamUKn1K-
Oh4gSa04H4Bw&zoom=1&iact=hc&vpx=974&vpy=243&dur=632&hovh=207&hovw=244&tx=158&ty=123&sig=101630065824633132665&page=1&tbnh=142&tbnw=167&start=0&ndsp=
49&ved=1t:429,r:15,s:0,i:114
• http://www.google.it/imgres?q=stomach&um=1&hl=it&sa=N&biw=1920&bih=881&tbm=isch&tbnid=Qdna7bQ9_GDSaM:&imgrefurl=http://health.rush.edu/HealthInformation/mens%2
520center/10/000607.aspx&docid=kWOlsV9Y-D2StM&imgurl=http://health.rush.edu/HealthInformation/graphics/images/en/15835.jpg&w=400&h=320&ei=BBamUKn1K-
Oh4gSa04H4Bw&zoom=1&iact=hc&vpx=668&vpy=395&dur=341&hovh=201&hovw=251&tx=127&ty=64&sig=101630065824633132665&page=2&tbnh=138&tbnw=172&start=49&ndsp=
56&ved=1t:429,r:80,s:0,i:313
• http://www.google.it/imgres?q=leaf&um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=9Sb0tz0aP_kCcM:&imgrefurl=http://good-
wallpapers.com/nature/4637&docid=yqNp2DeVkEcFqM&imgurl=http://good-
wallpapers.com/pictures/4637/Green_leaf_with_water_drops_wallpaper.jpg&w=1600&h=1200&ei=ARimUNXRE4qI4ATm9IH4Cg&zoom=1&iact=hc&vpx=417&vpy=2
12&dur=297&hovh=194&hovw=259&tx=171&ty=70&sig=101630065824633132665&page=2&tbnh=136&tbnw=191&start=48&ndsp=57&ved=1t:429,r:78,s:0,i:369
• http://www.google.it/imgres?q=leaf&um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=Kzs4QcNLpaZ0lM:&imgrefurl=http://www.infovisual.info/01/011_en.html
&docid=eW64aCpP9OMeqM&imgurl=http://www.infovisual.info/01/img_en/011%252520Leaf%252520margins.jpg&w=615&h=414&ei=ARimUNXRE4qI4ATm9IH4Cg
&zoom=1&iact=hc&vpx=1160&vpy=194&dur=239&hovh=184&hovw=274&tx=144&ty=101&sig=101630065824633132665&page=1&tbnh=146&tbnw=217&start=0&
ndsp=48&ved=1t:429,r:6,s:0,i:150
• http://www.google.it/imgres?q=root&um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=_J8Jj9NAqXKOIM:&imgrefurl=http://www.raydybzinski.com/2012/09/17/r
oot-territoriality-and-the-infamous-air-spade/&docid=ditr139SJgNFrM&imgurl=http://www.raydybzinski.com/wp-
content/uploads/2012/09/BADtree_with_roots.jpg&w=400&h=502&ei=0himUM_RD4Sq4ATUn4CQCg&zoom=1&iact=rc&dur=376&sig=101630065824633132665&pa
ge=1&tbnh=141&tbnw=95&start=0&ndsp=52&ved=1t:429,r:42,s:0,i:261&tx=61&ty=51
• http://www.google.it/imgres?q=root&um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=aCOchqSNemUrTM:&imgrefurl=http://science.howstuffworks.com/diction
ary/plant-terms/root-info.htm&docid=SlL4CfbJH3la6M&imgurl=http://static.ddmcdn.com/gif/willow/root-
info2.gif&w=300&h=502&ei=0himUM_RD4Sq4ATUn4CQCg&zoom=1&iact=rc&dur=367&sig=101630065824633132665&page=1&tbnh=145&tbnw=87&start=0&ndsp
=52&ved=1t:429,r:1,s:0,i:135&tx=44&ty=51
• http://www.google.it/imgres?q=circulatory+system&um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=azeli0lCOQi_9M:&imgrefurl=http://www.ucadia.com/uca/u
16/162100.htm&docid=5hq-
1krLnL2PuM&imgurl=http://www.ucadia.com/images_uca/u16/circulatory_system.gif&w=336&h=566&ei=SxqmUKmeK_PE4gS_wICoBA&zoom=1&iact=hc&vpx=136
5&vpy=330&dur=904&hovh=292&hovw=173&tx=104&ty=111&sig=101630065824633132665&page=1&tbnh=135&tbnw=80&start=0&ndsp=57&ved=1t:429,r:30,s:0,i
:159
• http://www.google.it/imgres?q=Respiratory+system&um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=r7TQKXhtqMeuNM:&imgrefurl=http://www.emc.maricopa
.edu/faculty/farabee/biobk/biobookrespsys.html&docid=zaVdOvuuaS8DHM&imgurl=http://www.emc.maricopa.edu/faculty/farabee/biobk/humrespsys_1.gif&w=50
9&h=433&ei=BxumUMqiN8WG4ASAoICABw&zoom=1&iact=hc&dur=295&sig=101630065824633132665&page=1&tbnh=142&tbnw=167&start=0&ndsp=50&ved=1t:
429,r:2,s:0,i:72&tx=129&ty=123&vpx=549&vpy=101&hovh=207&hovw=243
• http://www.google.it/imgres?q=nervous+system&um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=_MiJefxNo5ErbM:&imgrefurl=http://en.wikibooks.org/wiki/H
uman_Physiology/The_Nervous_System&docid=CsyJosYtYtsmmM&imgurl=http://upload.wikimedia.org/wikipedia/commons/b/ba/Nervous_system_diagram.png&
w=421&h=695&ei=dhymUOrLKZP64QT69oDoDg&zoom=1&iact=hc&vpx=312&vpy=44&dur=532&hovh=289&hovw=175&tx=114&ty=134&sig=1016300658246331326
65&page=1&tbnh=142&tbnw=86&start=0&ndsp=54&ved=1t:429,r:1,s:0,i:83

19. Link delle immagini
• http://www.google.it/imgres?q=Digestive+system&um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=eCnyUjJtByO-
NM:&imgrefurl=http://kcoad1.wikispaces.com/The%2BHuman%2BDigestive%2BSystem&docid=7m1DKYF-
nVmwYM&imgurl=http://kcoad1.wikispaces.com/file/view/Human_Digestive_System.gif/232486300/Human_Digestive_System.gif&w=640&h=480&ei=HxymUOj0O
cqo4gTO7YGgCg&zoom=1&iact=hc&vpx=868&vpy=411&dur=249&hovh=194&hovw=259&tx=114&ty=88&sig=101630065824633132665&page=1&tbnh=131&tbnw=1
75&start=0&ndsp=55&ved=1t:429,r:27,s:0,i:150
• http://www.google.it/imgres?q=leaf+canopy+system&start=157&um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=n6zZkkfRVR5V8M:&imgrefurl=http://www.flick
r.com/photos/zeitguy/8038284532/&docid=1jYhlHsALSugiM&itg=1&imgurl=http://farm9.staticflickr.com/8458/8038284532_dfb5cce6ae_z.jpg&w=640&h=425&ei=o
h-
mUPXNPI_OswaiioHADw&zoom=1&iact=hc&vpx=872&vpy=562&dur=297&hovh=183&hovw=276&tx=134&ty=81&sig=101630065824633132665&page=4&tbnh=143
&tbnw=228&ndsp=56&ved=1t:429,r:70,s:100,i:214
• http://www.google.it/imgres?q=leaf+canopy+system&um=1&hl=it&biw=1920&bih=881&tbm=isch&tbnid=wc1FC5bEaAh7CM:&imgrefurl=http://www.markdroberts.
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