RBHraCaNacRkkm<úCa
Cati sasna RBHmhakSRt
Technical School for Medical Care
BIOLOGY
RTwsþIekasika (The Cell Theory)
Kim Sorya
BBA, MD, MPH
Email: drkimsorya@yahoo.com
Tel: 012 955 008
1
karBitmYycMnYnGMBIekasika (Some Random Cell
Facts)
mnusSmaDmFümmñak;pSMeLIgBIekasikaRb
Ehl 100 Trillion .
The average human being is composed of
around 100 Trillion individual cells!!!
 100,000,000,000,000
edIm,IbegáIt)ancMnuccucmYyenAelIGkSr “i”
RtUvkarekasikaRbEhl 50 It would take as many as 50
cells to cover the area of a dot on the letter “i”
WOW!!!
2
rbkKMehIjekasika (Discovery of Cells)
rbkKMehIjekasika nigrcnasm<½n§rbs;va
KWCab;Tak;TgnwgkarbegáItEkvBRgIk
CaBiessmIRkUTsSn_ (The discovery of cells and their structure is linked
3
rbkKMehIjekasika (Discovery of Cells)
 qñaM 1665 GñkviTüasaRsþCnCatiGg;eKøseQµaH
rU:bWth‘uk (Robert Hooke) )anrkeXIj nigbegáItBaküekasika
enAeBlKat;BinitüemIlceRmokeQImüa:gRsaldUcesñar.
 Kat;BN’naekasikafaCaRbGb;tUc b¤sMbukXµúM
(honeycomb)
 Kat;KitfaekasikamanEtenAkñúgrukçCatinigBBYkpSit (He
thought that cells only existed in plants and fungi)
4
Anton van Leuwenhoek
 enAqñaM 1673
)aneRbIR)as;mIRkUTsSn_eFVIedayédedIm,IsegátBinitüe
mIlBBuHTwkføúk
ehIy)anrkeXIjsarBagÁkayEdlpSMeLIgBIekasikaEtmYy
(single-celled organisms)
 Kat;ehABYkvafa “animalcules”
 Kat;k¾)ansegáteXIjekasikaQamrbs;RtI bkSI kEgáb Eqá
nigmnusSpgEdr.
 dUecñH
eKdwgfaekasikaRtUv)anrkeXIjenAkñúgstVk¾dUcCaruk
5
karxVHcenøaHry³eBl 150-200 qñaM (150-200 Year
Gap???)
 cenøaHrvagrbkKMehIjrbs; Hooke/Leuwenhoek
nigBak;kNþalstvtSTI 19
mankareCOnelOneTAmuxtictYcbMputTak;Tgekasi
ka.
Between the Hooke/Leuwenhoek discoveries and the
mid 19th century, very little cell advancements were made.
 enHRbEhlmkBICMenOeTAelIkMeNItedayÉkÉg
(spontaneous generation)

EdleK)anTTYlykya:gTUlMTUlay.
Examples:
kNþúrekItecjmkBIknÞb¼knÞk;
-
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kareCOnelOnenAstvtSTI 19 (19
th
Century
Advancement)
 karsgS½yCaeRcInekItmanenACuMvijRTwsþIénkM
eNItedayÉkÉg
 cugeRkayRtUv)anbgðaj[eXIjfaminBiteday
Louis
Pasteur: Ummm, I
Pasteur.
don’t think so!!!
?
=
+
7
karbegáItRTwsþIekasika (Development of Cell
Theory)
 qñaM 1838 – rukçviTUCnCatiGalWm:geQµaH
)anTajesckþI
snñidæanfaEpñkénrukçCatiTaMgGs;KWekIteLIgBIe
kasika.
1838- German Botanist, Matthias Schleiden,
Matthias Schleiden
concluded that all plant parts are made of cells
8
karbegáItRTwsþIekasika (Development of Cell
Theory)
 qñaM 1839 – srIr³viTUCnCatiGalWm:geQµaH
EdlCamitþ rbs; Schleiden
)anEføgfaCalikastVTaMgGs;pSMeLIgBIekasika.
Theodor Schwann
1839- German physiologist, Theodor Schwann, who was a close friend of
Schleiden, stated that all animal tissues are composed of cells (all animals are
made of cells).
9
karbegáItRTwsþIekasika (Development of Cell
Theory)
 qñaM 1858 – elak Rudolf Virchow
EdlCaRKUeBTüCnCatiGalWm:g;/ bnÞab;BI
eFVIkarsikSaCaeRcInGMBIeraKsaRsþekasika/
)anTajesckþIsnñidæanfaekasikaRtUv
EtekItecjBIekasikaEdlmanRsab;
¬ekasikaekItecjEtBIekasikaEdlman Rsab;¦ .
(cells must
arise from preexisting cells or cells can only arise from preexisting cells).
10
karbegáItRTwsþIekasika (Development of Cell
Theory)
 qñaM 1862 – elak Louis Pasteur
)anpþl;PsþútagGMBITsSnHEdlfaKµankar
begáItekasikaedayÉkÉgecjBIrUbFatuKµanCIvitena
HeT/ edayeFVIBiesaFn_KMrUdUc teTA (1862-Louis
Pasteur provided proof of the idea that there was no spontaneous
creation of cells from non-living matter, with the following classic
experiment).
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BiesaFn_rbs;)a:sÞ½r (Pasteur's Experiment)
Twksu‘bEdlmansarCaticiBa©wmRtUv)andut
kMedA nigsMlab;emeraKGs;
enAkñúgdbEdlmankRtg; nigdbEdlmankekag
(Nutrient broths were heated and sterilized in a flask with a straight
neck and a curved neck).
12
BiesaFn_rbs;)a:sÞ½r (Pasteur's Experiment)
 )a:sÞ½reRbIR)as;dbEdlmankRtg;/
CaRkumepÞógpÞat;/ EdlGnuBaØat[)ak;etrIcUl
eTAdl;kñúgTwksu‘b. enAkñúgdbTaMgenH
)ak;etrIduHlUtlas;enAkñúgTwksu‘bya:g qab;rh½s.
 dbBiesaFn_rbs;)a:sÞ½rmankEvgragCaGkSr S.
CamYynwgkRbePTenH emeraK minGaccUleTA)an
eTaHbICadbTaMgenHRtUveKdak;[RtUvxül;k¾eda
y. dUecñH Kµan )ak;etrIduHlUtlas;enaHeT.
13
14
RTwsþIekasika)ancb;sBVRKb; (Cell Theory
Complete)
 smasFatumUldæan 3
énRTwsþIekasika)aneBjeljsBVéf¶enH ³
 1>
sarBagÁkay¼Pav³rs;TaMgGs;pSMeLIg¼ekIteLIgBIe
kasikamYyb¤eRcIn All organisms/living things are
composed/made of one or more cells). (Schleiden & Schwann)(1838-39).
 2>
ekasikaKWCaÉktarcnasm<½n§nigmuxgarénCIvitkñ
úgRKb;Pav³rs;TaMgGs; The cell is the basic structural and
15
RTwsþIekasikasm½yTMenIb (Modern Cell Theory)
 RTwsþIekasikasm½yTMenIbmanpÞúkesckþIEføgc
MnYn 4 bEnßmeTAelIRTwsþIekasika edIm ³
 ekasikamanpÞúkBt’mantMnrBUCEdlRtUv)anepÞrEck
BIekasikamYyeTAekasikamYykñúgGMLúgénkareFVIc
MEnkekasika. The cell contains hereditary information(DNA) which is
passed on from cell to cell during cell division.
 ekasikaTaMgGs;mansmasPaBKImI
nigskmµPaBemtabUlIsCamUldæandUcKña.
All cells are
basically the same in chemical composition and metabolic activities.
16
RTwsþIekasikasm½yTMenIb (Modern Cell Theory)
 RTwsþIekasikasm½yTMenIbmanpÞúkesckþIEføgc
MnYn 4 bEnßmeTAelIRTwsþIekasika edIm ³
 RKb;muxgarsrIr³saRsþnigKImICamUldæan
RtUv)aneFVIeLIgenAkñúgekasika ¬clna/
karrMlayGahar >> CaedIm¦. All basic chemical & physiological
functions are carried out inside the cells.(movement, digestion, etc)
 skmµPaBekasikaGaRs½yeTAelIskmµPaBrbs;rcnasm<
½n§GnuekasikaEdlzitenA kñúgekasika
¬srIragÁÉkeTstUc²/ éNVyU:/ Pñasekasika>>¦.
Cell activity depends on the activities of sub-cellular structures within the
cell (organelles, nucleus, plasma membrane)
17
þc?
(How has the cell theory been used)
 karBitCamUldæanEdleK)anrkeXIjGMBIekasika/
EdlmanrayenAkñúgRTwsþIeka sika/
KWCamUldæanénkargardUcCa ³
 karBüa)alnigRsavRCavCm¶W¼suxPaB¼evC¢saRsþ
¬eGds_/ mharIk/ va:k;saMg/ kar bgáat;køÚn >>.l.¦
18
References
Understanding biology, Third Edition,
1995, By Peter H. Raven and George B.
Johnson.
 www.biology-online.com

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