NCERT Class 8 Science Chapter 8: Cell Structure and Functions | English | CBSE (NSO/NSTSE)

Dr. Manishika Jain explains NCERT Class 8 Science Chapter 8: Cell Structure and Functions

Difference between plant cell and animal cell?
What is cell wall and cell membrane
Prokaryotes and eukaryotes

Shape – amoeba -These are called pseudopodia – appear and disappear as amoeba moves and feeds
WBC in humans can change shape similar to amoeba (it is full fledged organism)
RBC – spherical
Muscle cells – spindle in shape
Nerve cell – long and branched (control and coordinate)
Components of the cell are enclosed in a membrane. Membrane provides shape.
Cell wall is additional covering giving shape and rigidity
Size of Cell: The smallest cell is 0.1 to 0.5 micrometer in bacteria. The largest cell measuring 170 mm ×130 mm, is the egg of an ostrich. A white material surrounds the yellow part. White material is albumin which solidifies on boiling. The yellow part is yolk. It is part of the single cell.
Size of cell has no relation to size of body. Nerve cells, both in the elephant and rat, are long and branched. They perform the same function, that of transferring messages.

Trillion of Cell @0:08
Unicellular @0:25
Multicellular @0:41
Brain Teasers @0:17
Cell @0:56
After 150 Years @1:51
EGG of Albumen 27 @3
Unicellular Organism @3:39
RBC @4:31
Muscle Cell @4:37
Nerve Cell @4:40
WBC @5:03
Size of Cell @6:25
Human Cheek Cell @7:45
Cell Wall in Plant Cell @8:15
Prokaryote @10:01
Eukaryote @10:07
#Prokaryote #Plant #Muscle #Function #Organism #Unicellular #Albumen #Membrane #Multicellular #Trillion #Manishika #Examrace #NSO #NSTSE #Olympiad #NCERT #VVM #examrace #upsc #ugcnet

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[ishikagoyal]

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It means a lot that you are working so hard for us❤️
Gaining knowledge in this manner is great ✌🏻

[Harpreetkaur-gxhm]

Mam you are really best teacher from our teachers. Apka samjhane ka way bahaut acha hai. I love it.

[divyadharshini-iedk]

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[jaykumargupta]

Thanks mam you teach science excellent

[rashmikutwal]

ma'am pls post a video for the chapter metals and non metals which is the 4th chapter in the textbook.

[gyothigulivindala]

Mam function of the cell in the unicellular organisms an multicellular organism is same or differ from each other

[evansworld]

Maam can you please make a video on chapter 6 Combustion and Flame?? It would help alot

[topicwiselearner]

Wowwww Ma'am suuppeerrrr lecture in short time period really proud of you ma'am

[sathichakraborty]

Thanks ma'am <3
This helped a lot as i wasn't able to understand much during my school's online classes
Are you a teacher of any school?

[saha.debanjali]

Thnx! It helped me to prepare for my xm😄

[todayreal]

Thankyou for the valuable teaching mam.

[gopalamahit]

mam it really useful mam i wish u to do more videos for class 8 mam and ur explanation is really awesome ..
i am really very glad for u mam ....

[educationaltech]

Thanks a lot mam for explaining us such a hard chapter very easily your videos is understanding keep it

[sujakeren]

nice teaching mam, really understood it very well .

[suganchandduggad]

Mam I have a dout
1) why do heart muscle cells have mitochondrial than other cell in body

[rajeshsolanki]

Plz send me the link of class 8 science course
The study material

[givanshipapneja]

thanqqs mam for vry gud explanation...👍🏻👍🏻

[sadhnaguptak.v.patiala]

Now a days quarantines study is going online and I was not able to understand the chapter nicely and you helped me alot✌✌✌

[sanchitashashwat]

If a nail is a dead cell then how it grows?