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Sejarah penemuan sel - materi biologi bab sel kelas

6:36EnglishTranscribed Jul 24, 2026
0:00

Hello Hello

0:01

Guetta friends Welcome to the

0:05

second babsel material school zone in this material we

0:08

will discuss the history of cells where in the

0:11

previous video we already know

0:13

What is the definition of cells Okay Let's go straight to

0:16

learning

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this nashob is a picture of

0:21

onion cells seen

0:23

using a microscope

0:25

Hi talking about microscopes this tool was

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very viral among researchers

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in the 1600s because at that time it

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was the beginning of the discovery of microscopes

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and at that time it was a new thing

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for researchers to see

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very small objects until finally

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scientists for the first time discovered

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cells Okay we will sort the history of

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the discovery of soft cells we already know

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yes Cells are the smallest structural and

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functional units of living things well the

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history of the discovery of cells occurred over

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several periods and the discovery also

1:00

involved several scientists in each

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period

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Hi the discovery of cells began in

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1591 at that time there was a

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glasses maker named zacharias Janssen

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he made a tool that functioned like a

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magnifying glass from a tube at both

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ends he placed a lens more or

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less the tool Like this shop at that time

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he used this tool to see

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objects that are very small and

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cannot be seen directly by our eyes

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where this tool is what we now know

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as a microscope Oh yes it is necessary It is known

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that the image produced by the

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microscope made by Zacharias Janssen

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is still blurry or not very

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clear because at that time the microscope

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did not have a feature to adjust the

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focus shop well since then

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until the end of the early 1600s

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this microscope went viral among researchers

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Hi they flocked to

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buy or make their

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own microscopes so they could see objects

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that were very small in size

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Hi well in

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1665 there was a researcher from

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England named Robert Hooke He really

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liked to see and examine

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small objects using his microscope until

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One day he conducted an experiment

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looking at the lines of dead plant stems

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which were precisely the

2:26

mimosa plant

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from his observations he saw

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small empty boxes Where

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we currently know as

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cork tissue out well when he saw that He

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thought that it was similar to Sheila

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it was a place for monks to pray

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and also rest Well because what was

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observed was similar to Sheila then he

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gave the name What he saw was the

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name of the cell well This is what

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made Robert Hooke the

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first person to coin the name cell Oh yes

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Sob This product not only observes

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cork tissue but he also

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observes many objects such as insects

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moss and Hi then the results of his observations

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he collected in a book

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entitled micrographia well this book

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was published in

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1665 so in this year it was made the

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year where the word cell was first

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popularized

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Okay now we move on to 1674

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Anthony Van leuwenhook Well yes also

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really likes to see small objects

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using a microscope but here he

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did his research using a

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microscope that he made himself for his

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microscope model like this shop well with his

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microscope capital antonini

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tried to observe several samples

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such as flowers insects rainwater and

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others well when observing many

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samples Earlier he saw small creatures

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that moved like

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small animals so he named them

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animal Crush Hai which means

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small animals which

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Hai Well with this he was the

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first person to see life

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using a microscope Then after

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the discovery of this life sale microscopes are

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increasingly developing shop the development of

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microscopes is also followed by the

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development of cell discoveries so in

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1838 there were two German biology researchers

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who discovered new things about

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their cells are Mathias Jacob

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schleiden and also tedder swans

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Hi at that time Jacob I and that researched

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plant tissue using a microscope

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for years in

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1838 He

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made a conclusion that all

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plants are composed of cells well in

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other places careless also conducted research

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on animal tissue under a microscope

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then in the same year he also

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concluded that all animals are composed

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of cells finally they met each other

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and agreed that all living things are

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composed of cells so that cells

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are the basic units of life

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shop Well after that researchers began

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to question

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where the cells actually came from

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finally in

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1858 a German researcher named

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Rudolf Virchow discovered the fact that cells

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can divide the fact was discovered

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after he studied or researched the

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reproduction of cells Hi well the results of

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his research were published in a book

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entitled cellular pathology and

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in the book he said that cells

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come from other cells

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Hi nashob from the history of the discovery of this cell

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three theories about cells were born that

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we know today

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Hi the first is that all

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living things are composed of cells Then the second

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cell is the smallest structural and

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functional unit of living things

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and the third says that cells

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come from other cells through

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cell division Well so that's the history

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of cells Hopefully it can be digested function

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and live for all ordinary friends don't

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forget to watch and study the

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next material and other learning videos

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so See you next video sold

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Hi Ho

6:30

[Music]

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