SlideShare a Scribd company logo
Specialized Cells &Tissues
Specialized Cells
• Unicellular organisms are tiny because there are limits to how
large they can grow. One of the reasons involves diffusion and
osmosis.These vital processes work well only over very short
distances.
• For example, it takes an oxygen particle a fraction of a second to
diffuse over a distance of 10 m (0.01 mm).To diffuse over a
distance of 1 mm takes several minutes!
Specialized Cells
• Like all organisms, unicellular organisms grow and develop.
• When unicellular organisms reach the limits of their size, like the
amoeba shown here, they reproduce.
• Amoeba do this by dividing into two, which results in two
smaller, identical copies of each organism.
Specialized Cells
• Your cells reproduce this way, too.That’s how, for example, your
body replaces the 50 000 000 or so skin cells that it naturally
loses each day!Your body cells also reproduce to repair tissues
that get damaged. For example, if you scrape your elbow, your
skin cells reproduce to form new skin tissue.
Specialized Cells
• Specialized Cells: carry out a specific function or functions
needed to support life
• Cells combine to form tissues.
• In humans and other animals, there are four different tissue
types:
• Connective
• Epithelial
• Nervous
• Muscle
ConnectiveTissue
• Connective Tissue: supports and connects different parts of the
body
• Some examples of these types of tissue are:
• Fat,Tendon, Blood
EpithelialTissue
• Epithelial Tissue: covers the outside
of your body and outside of your
organs. Also lines the inside of some
organs like the intestines.
• Crazy Facts About Skin
• Skin is thickest, 1/5 inch, on the upper
back. It is thinnest on the eyelids, which
are only 1/50th inch thick
• Your skin weighs about 3.2kg (of course
some weigh more)
• Your skin sheds 50,000 cells every
minute.
NervousTissue
• NervousTissue: makes up the brain and the spinal cord
• Around 45 miles (72 km) of nerves run through our body.The electric
impulses travel at a speed of almost 250 mph!
MuscleTissue
• MuscleTissue: allows you to
move.
• Some Examples
• you have smooth muscle which
can move food along your
intestines and cardiac muscle that
pumps blood through your heart.
You also have skeletal muscles
which keep your frame together
Specialized Cells
•Cells combine to form tissues in plants.
•There are three different tissue types:
•PhotosyntheticTissue: use sunlight to produce sugar for
energy.
•ProtectiveTissue: a waterproof layer that protects plants.
•TransportTissue: tube-like cells with hollow centers, phloem
transports food, and xylem transports water.
Specialized Cells

More Related Content

What's hot (20)

Ch.1, summary
Ch.1, summaryCh.1, summary
Ch.1, summary
 
Major organ systems (3)
Major organ systems (3)Major organ systems (3)
Major organ systems (3)
 
Specialised info sheets (1)
Specialised info sheets (1)Specialised info sheets (1)
Specialised info sheets (1)
 
Excretory system
Excretory systemExcretory system
Excretory system
 
Unit 12
Unit 12Unit 12
Unit 12
 
Unicellular and multicellular
Unicellular and multicellularUnicellular and multicellular
Unicellular and multicellular
 
16chapter 3 cells
16chapter 3 cells16chapter 3 cells
16chapter 3 cells
 
5 levels-of-organization
5 levels-of-organization5 levels-of-organization
5 levels-of-organization
 
Lesson 12 levels of organisation (1)
Lesson 12   levels of organisation (1)Lesson 12   levels of organisation (1)
Lesson 12 levels of organisation (1)
 
Lesson 13 diffusion
Lesson 13   diffusionLesson 13   diffusion
Lesson 13 diffusion
 
Human body systems for kids
Human body systems for kidsHuman body systems for kids
Human body systems for kids
 
Introduction to human body
Introduction to human bodyIntroduction to human body
Introduction to human body
 
Cell organelles
Cell organellesCell organelles
Cell organelles
 
Human body systems
Human body systemsHuman body systems
Human body systems
 
Ap chap 1
Ap chap 1 Ap chap 1
Ap chap 1
 
ppt from cell to organisms
 ppt from cell to organisms ppt from cell to organisms
ppt from cell to organisms
 
Specialized Cells, Biology
Specialized Cells, BiologySpecialized Cells, Biology
Specialized Cells, Biology
 
Organ systems of human body
Organ systems of human bodyOrgan systems of human body
Organ systems of human body
 
ppt from cell to organisms
 ppt from cell to organisms ppt from cell to organisms
ppt from cell to organisms
 
Animal organ systems
Animal organ systemsAnimal organ systems
Animal organ systems
 

Similar to Specialized cells & tissues

The human body systemsphatmtech
The human body systemsphatmtechThe human body systemsphatmtech
The human body systemsphatmtechcqpate
 
Body systems pp baker
Body systems pp bakerBody systems pp baker
Body systems pp bakerbradscoffee
 
Human body structure / Human Anatomy and Physiology
Human body structure / Human Anatomy and PhysiologyHuman body structure / Human Anatomy and Physiology
Human body structure / Human Anatomy and PhysiologyPURBANGSHU CHATTERJEE
 
D) introduction to cells and tissues
D) introduction to cells and tissues D) introduction to cells and tissues
D) introduction to cells and tissues Sachin Parsekar
 
Human Anatomy & Physiology - TISSUE
Human Anatomy & Physiology - TISSUEHuman Anatomy & Physiology - TISSUE
Human Anatomy & Physiology - TISSUEKamal Chandra Upreti
 
The organization of living things
The organization of living thingsThe organization of living things
The organization of living thingsjdrinks
 
Organization of Living Things Notes
Organization of Living Things NotesOrganization of Living Things Notes
Organization of Living Things Notesknewton1314
 
Tissue System/Collection of Cells
Tissue System/Collection of CellsTissue System/Collection of Cells
Tissue System/Collection of CellsPharmacy Universe
 
8. Organization of human body - Anatomy - BSc Nursing 1st Semester - by M. T...
8.  Organization of human body - Anatomy - BSc Nursing 1st Semester - by M. T...8.  Organization of human body - Anatomy - BSc Nursing 1st Semester - by M. T...
8. Organization of human body - Anatomy - BSc Nursing 1st Semester - by M. T...thiru murugan
 
Grade 4 Unit 3 Lesson 1 Plant & Animal Cells.ppt
Grade 4 Unit 3 Lesson 1 Plant & Animal Cells.pptGrade 4 Unit 3 Lesson 1 Plant & Animal Cells.ppt
Grade 4 Unit 3 Lesson 1 Plant & Animal Cells.pptJulieAnnLacanilao
 
Grade 4 Unit 3 Lesson 1 Plant & Animal Cells (1).ppt
Grade 4 Unit 3 Lesson 1 Plant & Animal Cells (1).pptGrade 4 Unit 3 Lesson 1 Plant & Animal Cells (1).ppt
Grade 4 Unit 3 Lesson 1 Plant & Animal Cells (1).pptKimberlyAnnePagdanga1
 
Grade 4 Unit 3 Lesson 1 Plant & Animal Cells.ppt
Grade 4 Unit 3 Lesson 1 Plant & Animal Cells.pptGrade 4 Unit 3 Lesson 1 Plant & Animal Cells.ppt
Grade 4 Unit 3 Lesson 1 Plant & Animal Cells.pptShenazHakam
 
Types of tissues and their types (with diagrams)
Types of tissues and their types (with diagrams)Types of tissues and their types (with diagrams)
Types of tissues and their types (with diagrams)mehreenjabeen14
 
240333162-The-Muscular-System-by-Group-5.ppt
240333162-The-Muscular-System-by-Group-5.ppt240333162-The-Muscular-System-by-Group-5.ppt
240333162-The-Muscular-System-by-Group-5.pptShefaCapuras1
 

Similar to Specialized cells & tissues (20)

Animal tissue
Animal tissue Animal tissue
Animal tissue
 
The human body systemsphatmtech
The human body systemsphatmtechThe human body systemsphatmtech
The human body systemsphatmtech
 
Body systems pp baker
Body systems pp bakerBody systems pp baker
Body systems pp baker
 
Human body structure / Human Anatomy and Physiology
Human body structure / Human Anatomy and PhysiologyHuman body structure / Human Anatomy and Physiology
Human body structure / Human Anatomy and Physiology
 
D) introduction to cells and tissues
D) introduction to cells and tissues D) introduction to cells and tissues
D) introduction to cells and tissues
 
TISSUES.pptx
TISSUES.pptxTISSUES.pptx
TISSUES.pptx
 
Human Anatomy & Physiology - TISSUE
Human Anatomy & Physiology - TISSUEHuman Anatomy & Physiology - TISSUE
Human Anatomy & Physiology - TISSUE
 
The organization of living things
The organization of living thingsThe organization of living things
The organization of living things
 
cells power point
cells power pointcells power point
cells power point
 
Organization of Living Things Notes
Organization of Living Things NotesOrganization of Living Things Notes
Organization of Living Things Notes
 
Tissue System/Collection of Cells
Tissue System/Collection of CellsTissue System/Collection of Cells
Tissue System/Collection of Cells
 
8. Organization of human body - Anatomy - BSc Nursing 1st Semester - by M. T...
8.  Organization of human body - Anatomy - BSc Nursing 1st Semester - by M. T...8.  Organization of human body - Anatomy - BSc Nursing 1st Semester - by M. T...
8. Organization of human body - Anatomy - BSc Nursing 1st Semester - by M. T...
 
Grade 4 Unit 3 Lesson 1 Plant & Animal Cells.ppt
Grade 4 Unit 3 Lesson 1 Plant & Animal Cells.pptGrade 4 Unit 3 Lesson 1 Plant & Animal Cells.ppt
Grade 4 Unit 3 Lesson 1 Plant & Animal Cells.ppt
 
Grade 4 Unit 3 Lesson 1 Plant & Animal Cells (1).ppt
Grade 4 Unit 3 Lesson 1 Plant & Animal Cells (1).pptGrade 4 Unit 3 Lesson 1 Plant & Animal Cells (1).ppt
Grade 4 Unit 3 Lesson 1 Plant & Animal Cells (1).ppt
 
Grade 4 Unit 3 Lesson 1 Plant & Animal Cells.ppt
Grade 4 Unit 3 Lesson 1 Plant & Animal Cells.pptGrade 4 Unit 3 Lesson 1 Plant & Animal Cells.ppt
Grade 4 Unit 3 Lesson 1 Plant & Animal Cells.ppt
 
Animal tissue
Animal tissueAnimal tissue
Animal tissue
 
2. tissue level of organization
2. tissue level of organization2. tissue level of organization
2. tissue level of organization
 
Tissue
TissueTissue
Tissue
 
Types of tissues and their types (with diagrams)
Types of tissues and their types (with diagrams)Types of tissues and their types (with diagrams)
Types of tissues and their types (with diagrams)
 
240333162-The-Muscular-System-by-Group-5.ppt
240333162-The-Muscular-System-by-Group-5.ppt240333162-The-Muscular-System-by-Group-5.ppt
240333162-The-Muscular-System-by-Group-5.ppt
 

More from RileyAntler

Structural forms
Structural formsStructural forms
Structural formsRileyAntler
 
Unit d structures & forces
Unit d structures & forcesUnit d structures & forces
Unit d structures & forcesRileyAntler
 
Electromagnetic spectrum
Electromagnetic spectrumElectromagnetic spectrum
Electromagnetic spectrumRileyAntler
 
Unit c light and optics
Unit c light and opticsUnit c light and optics
Unit c light and opticsRileyAntler
 
Circulatory system
Circulatory systemCirculatory system
Circulatory systemRileyAntler
 
Biomagnification
BiomagnificationBiomagnification
BiomagnificationRileyAntler
 
Transporting chemicals
Transporting chemicalsTransporting chemicals
Transporting chemicalsRileyAntler
 
Monitoring the atmosphere
Monitoring the atmosphereMonitoring the atmosphere
Monitoring the atmosphereRileyAntler
 
Monitoring air quality
Monitoring air qualityMonitoring air quality
Monitoring air qualityRileyAntler
 
Monitoring water quality
Monitoring water qualityMonitoring water quality
Monitoring water qualityRileyAntler
 
Transport of substances
Transport of substancesTransport of substances
Transport of substancesRileyAntler
 
Acids & bases
Acids & basesAcids & bases
Acids & basesRileyAntler
 
Unit c environmental chemistry
Unit c environmental chemistryUnit c environmental chemistry
Unit c environmental chemistryRileyAntler
 
Organic & inorganic
Organic & inorganicOrganic & inorganic
Organic & inorganicRileyAntler
 
Unit d electrical principals & technologies notes
Unit d electrical principals & technologies notesUnit d electrical principals & technologies notes
Unit d electrical principals & technologies notesRileyAntler
 
Organs & organ systems
Organs & organ systemsOrgans & organ systems
Organs & organ systemsRileyAntler
 

More from RileyAntler (20)

Structural forms
Structural formsStructural forms
Structural forms
 
Unit d structures & forces
Unit d structures & forcesUnit d structures & forces
Unit d structures & forces
 
Electromagnetic spectrum
Electromagnetic spectrumElectromagnetic spectrum
Electromagnetic spectrum
 
Light sources
Light sourcesLight sources
Light sources
 
Unit c light and optics
Unit c light and opticsUnit c light and optics
Unit c light and optics
 
Nervous system
Nervous systemNervous system
Nervous system
 
Circulatory system
Circulatory systemCirculatory system
Circulatory system
 
Cell transport
Cell transportCell transport
Cell transport
 
Biomagnification
BiomagnificationBiomagnification
Biomagnification
 
Transporting chemicals
Transporting chemicalsTransporting chemicals
Transporting chemicals
 
Monitoring the atmosphere
Monitoring the atmosphereMonitoring the atmosphere
Monitoring the atmosphere
 
Monitoring air quality
Monitoring air qualityMonitoring air quality
Monitoring air quality
 
Monitoring water quality
Monitoring water qualityMonitoring water quality
Monitoring water quality
 
Human impacts
Human impactsHuman impacts
Human impacts
 
Transport of substances
Transport of substancesTransport of substances
Transport of substances
 
Acids & bases
Acids & basesAcids & bases
Acids & bases
 
Unit c environmental chemistry
Unit c environmental chemistryUnit c environmental chemistry
Unit c environmental chemistry
 
Organic & inorganic
Organic & inorganicOrganic & inorganic
Organic & inorganic
 
Unit d electrical principals & technologies notes
Unit d electrical principals & technologies notesUnit d electrical principals & technologies notes
Unit d electrical principals & technologies notes
 
Organs & organ systems
Organs & organ systemsOrgans & organ systems
Organs & organ systems
 

Recently uploaded

Gliese 12 b, a temperate Earth-sized planet at 12 parsecs discovered with TES...
Gliese 12 b, a temperate Earth-sized planet at 12 parsecs discovered with TES...Gliese 12 b, a temperate Earth-sized planet at 12 parsecs discovered with TES...
Gliese 12 b, a temperate Earth-sized planet at 12 parsecs discovered with TES...Sérgio Sacani
 
INSIGHT Partner Profile: Tampere University
INSIGHT Partner Profile: Tampere UniversityINSIGHT Partner Profile: Tampere University
INSIGHT Partner Profile: Tampere UniversitySteffi Friedrichs
 
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.Sérgio Sacani
 
METHODS OF TRANSCRIPTOME ANALYSIS....pptx
METHODS OF TRANSCRIPTOME ANALYSIS....pptxMETHODS OF TRANSCRIPTOME ANALYSIS....pptx
METHODS OF TRANSCRIPTOME ANALYSIS....pptxCherry
 
Tissue engineering......................pptx
Tissue engineering......................pptxTissue engineering......................pptx
Tissue engineering......................pptxCherry
 
ERTHROPOIESIS: Dr. E. Muralinath & R. Gnana Lahari
ERTHROPOIESIS: Dr. E. Muralinath & R. Gnana LahariERTHROPOIESIS: Dr. E. Muralinath & R. Gnana Lahari
ERTHROPOIESIS: Dr. E. Muralinath & R. Gnana Laharimuralinath2
 
Richard's entangled aventures in wonderland
Richard's entangled aventures in wonderlandRichard's entangled aventures in wonderland
Richard's entangled aventures in wonderlandRichard Gill
 
Microbial bio Synthesis of nanoparticles.pptx
Microbial bio Synthesis of nanoparticles.pptxMicrobial bio Synthesis of nanoparticles.pptx
Microbial bio Synthesis of nanoparticles.pptxCherry
 
Isolation of AMF by wet sieving and decantation method pptx
Isolation of AMF by wet sieving and decantation method pptxIsolation of AMF by wet sieving and decantation method pptx
Isolation of AMF by wet sieving and decantation method pptxGOWTHAMIM22
 
Hemoglobin metabolism: C Kalyan & E. Muralinath
Hemoglobin metabolism: C Kalyan & E. MuralinathHemoglobin metabolism: C Kalyan & E. Muralinath
Hemoglobin metabolism: C Kalyan & E. Muralinathmuralinath2
 
Pests of sugarcane_Binomics_IPM_Dr.UPR.pdf
Pests of sugarcane_Binomics_IPM_Dr.UPR.pdfPests of sugarcane_Binomics_IPM_Dr.UPR.pdf
Pests of sugarcane_Binomics_IPM_Dr.UPR.pdfPirithiRaju
 
Plasma proteins_ Dr.Muralinath_Dr.c. kalyan
Plasma proteins_ Dr.Muralinath_Dr.c. kalyanPlasma proteins_ Dr.Muralinath_Dr.c. kalyan
Plasma proteins_ Dr.Muralinath_Dr.c. kalyanmuralinath2
 
Plasmapheresis - Dr. E. Muralinath - Kalyan . C.pptx
Plasmapheresis - Dr. E. Muralinath - Kalyan . C.pptxPlasmapheresis - Dr. E. Muralinath - Kalyan . C.pptx
Plasmapheresis - Dr. E. Muralinath - Kalyan . C.pptxmuralinath2
 
Triploidy ...............................pptx
Triploidy ...............................pptxTriploidy ...............................pptx
Triploidy ...............................pptxCherry
 
Constraints on Neutrino Natal Kicks from Black-Hole Binary VFTS 243
Constraints on Neutrino Natal Kicks from Black-Hole Binary VFTS 243Constraints on Neutrino Natal Kicks from Black-Hole Binary VFTS 243
Constraints on Neutrino Natal Kicks from Black-Hole Binary VFTS 243Sérgio Sacani
 
Gliese 12 b: A Temperate Earth-sized Planet at 12 pc Ideal for Atmospheric Tr...
Gliese 12 b: A Temperate Earth-sized Planet at 12 pc Ideal for Atmospheric Tr...Gliese 12 b: A Temperate Earth-sized Planet at 12 pc Ideal for Atmospheric Tr...
Gliese 12 b: A Temperate Earth-sized Planet at 12 pc Ideal for Atmospheric Tr...Sérgio Sacani
 
FAIR & AI Ready KGs for Explainable Predictions
FAIR & AI Ready KGs for Explainable PredictionsFAIR & AI Ready KGs for Explainable Predictions
FAIR & AI Ready KGs for Explainable PredictionsMichel Dumontier
 
The solar dynamo begins near the surface
The solar dynamo begins near the surfaceThe solar dynamo begins near the surface
The solar dynamo begins near the surfaceSérgio Sacani
 
GBSN - Microbiology (Lab 2) Compound Microscope
GBSN - Microbiology (Lab 2) Compound MicroscopeGBSN - Microbiology (Lab 2) Compound Microscope
GBSN - Microbiology (Lab 2) Compound MicroscopeAreesha Ahmad
 
In vitro androgenesis ...............pptx
In vitro androgenesis ...............pptxIn vitro androgenesis ...............pptx
In vitro androgenesis ...............pptxCherry
 

Recently uploaded (20)

Gliese 12 b, a temperate Earth-sized planet at 12 parsecs discovered with TES...
Gliese 12 b, a temperate Earth-sized planet at 12 parsecs discovered with TES...Gliese 12 b, a temperate Earth-sized planet at 12 parsecs discovered with TES...
Gliese 12 b, a temperate Earth-sized planet at 12 parsecs discovered with TES...
 
INSIGHT Partner Profile: Tampere University
INSIGHT Partner Profile: Tampere UniversityINSIGHT Partner Profile: Tampere University
INSIGHT Partner Profile: Tampere University
 
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.
 
METHODS OF TRANSCRIPTOME ANALYSIS....pptx
METHODS OF TRANSCRIPTOME ANALYSIS....pptxMETHODS OF TRANSCRIPTOME ANALYSIS....pptx
METHODS OF TRANSCRIPTOME ANALYSIS....pptx
 
Tissue engineering......................pptx
Tissue engineering......................pptxTissue engineering......................pptx
Tissue engineering......................pptx
 
ERTHROPOIESIS: Dr. E. Muralinath & R. Gnana Lahari
ERTHROPOIESIS: Dr. E. Muralinath & R. Gnana LahariERTHROPOIESIS: Dr. E. Muralinath & R. Gnana Lahari
ERTHROPOIESIS: Dr. E. Muralinath & R. Gnana Lahari
 
Richard's entangled aventures in wonderland
Richard's entangled aventures in wonderlandRichard's entangled aventures in wonderland
Richard's entangled aventures in wonderland
 
Microbial bio Synthesis of nanoparticles.pptx
Microbial bio Synthesis of nanoparticles.pptxMicrobial bio Synthesis of nanoparticles.pptx
Microbial bio Synthesis of nanoparticles.pptx
 
Isolation of AMF by wet sieving and decantation method pptx
Isolation of AMF by wet sieving and decantation method pptxIsolation of AMF by wet sieving and decantation method pptx
Isolation of AMF by wet sieving and decantation method pptx
 
Hemoglobin metabolism: C Kalyan & E. Muralinath
Hemoglobin metabolism: C Kalyan & E. MuralinathHemoglobin metabolism: C Kalyan & E. Muralinath
Hemoglobin metabolism: C Kalyan & E. Muralinath
 
Pests of sugarcane_Binomics_IPM_Dr.UPR.pdf
Pests of sugarcane_Binomics_IPM_Dr.UPR.pdfPests of sugarcane_Binomics_IPM_Dr.UPR.pdf
Pests of sugarcane_Binomics_IPM_Dr.UPR.pdf
 
Plasma proteins_ Dr.Muralinath_Dr.c. kalyan
Plasma proteins_ Dr.Muralinath_Dr.c. kalyanPlasma proteins_ Dr.Muralinath_Dr.c. kalyan
Plasma proteins_ Dr.Muralinath_Dr.c. kalyan
 
Plasmapheresis - Dr. E. Muralinath - Kalyan . C.pptx
Plasmapheresis - Dr. E. Muralinath - Kalyan . C.pptxPlasmapheresis - Dr. E. Muralinath - Kalyan . C.pptx
Plasmapheresis - Dr. E. Muralinath - Kalyan . C.pptx
 
Triploidy ...............................pptx
Triploidy ...............................pptxTriploidy ...............................pptx
Triploidy ...............................pptx
 
Constraints on Neutrino Natal Kicks from Black-Hole Binary VFTS 243
Constraints on Neutrino Natal Kicks from Black-Hole Binary VFTS 243Constraints on Neutrino Natal Kicks from Black-Hole Binary VFTS 243
Constraints on Neutrino Natal Kicks from Black-Hole Binary VFTS 243
 
Gliese 12 b: A Temperate Earth-sized Planet at 12 pc Ideal for Atmospheric Tr...
Gliese 12 b: A Temperate Earth-sized Planet at 12 pc Ideal for Atmospheric Tr...Gliese 12 b: A Temperate Earth-sized Planet at 12 pc Ideal for Atmospheric Tr...
Gliese 12 b: A Temperate Earth-sized Planet at 12 pc Ideal for Atmospheric Tr...
 
FAIR & AI Ready KGs for Explainable Predictions
FAIR & AI Ready KGs for Explainable PredictionsFAIR & AI Ready KGs for Explainable Predictions
FAIR & AI Ready KGs for Explainable Predictions
 
The solar dynamo begins near the surface
The solar dynamo begins near the surfaceThe solar dynamo begins near the surface
The solar dynamo begins near the surface
 
GBSN - Microbiology (Lab 2) Compound Microscope
GBSN - Microbiology (Lab 2) Compound MicroscopeGBSN - Microbiology (Lab 2) Compound Microscope
GBSN - Microbiology (Lab 2) Compound Microscope
 
In vitro androgenesis ...............pptx
In vitro androgenesis ...............pptxIn vitro androgenesis ...............pptx
In vitro androgenesis ...............pptx
 

Specialized cells & tissues

  • 2. Specialized Cells • Unicellular organisms are tiny because there are limits to how large they can grow. One of the reasons involves diffusion and osmosis.These vital processes work well only over very short distances. • For example, it takes an oxygen particle a fraction of a second to diffuse over a distance of 10 m (0.01 mm).To diffuse over a distance of 1 mm takes several minutes!
  • 3. Specialized Cells • Like all organisms, unicellular organisms grow and develop. • When unicellular organisms reach the limits of their size, like the amoeba shown here, they reproduce. • Amoeba do this by dividing into two, which results in two smaller, identical copies of each organism.
  • 4. Specialized Cells • Your cells reproduce this way, too.That’s how, for example, your body replaces the 50 000 000 or so skin cells that it naturally loses each day!Your body cells also reproduce to repair tissues that get damaged. For example, if you scrape your elbow, your skin cells reproduce to form new skin tissue.
  • 5. Specialized Cells • Specialized Cells: carry out a specific function or functions needed to support life • Cells combine to form tissues. • In humans and other animals, there are four different tissue types: • Connective • Epithelial • Nervous • Muscle
  • 6. ConnectiveTissue • Connective Tissue: supports and connects different parts of the body • Some examples of these types of tissue are: • Fat,Tendon, Blood
  • 7. EpithelialTissue • Epithelial Tissue: covers the outside of your body and outside of your organs. Also lines the inside of some organs like the intestines. • Crazy Facts About Skin • Skin is thickest, 1/5 inch, on the upper back. It is thinnest on the eyelids, which are only 1/50th inch thick • Your skin weighs about 3.2kg (of course some weigh more) • Your skin sheds 50,000 cells every minute.
  • 8. NervousTissue • NervousTissue: makes up the brain and the spinal cord • Around 45 miles (72 km) of nerves run through our body.The electric impulses travel at a speed of almost 250 mph!
  • 9. MuscleTissue • MuscleTissue: allows you to move. • Some Examples • you have smooth muscle which can move food along your intestines and cardiac muscle that pumps blood through your heart. You also have skeletal muscles which keep your frame together
  • 10. Specialized Cells •Cells combine to form tissues in plants. •There are three different tissue types: •PhotosyntheticTissue: use sunlight to produce sugar for energy. •ProtectiveTissue: a waterproof layer that protects plants. •TransportTissue: tube-like cells with hollow centers, phloem transports food, and xylem transports water.