NCERT Class 8 Science Chapter 2: Microorganisms – Friends and Foes (NSO/NSTSE/Olympiad) Examrace

Microorganism @0:10
Micro Classification 4 Types @1:17
Algae @1:48
Bacteria @1:53
Fungi @2:08
Protozoa @2:25
Virus @2:34
Friendly Microorganisms @4:48
Antibiotics @8:30
Vaccine @9:47
Cleaning Environment @11:12
Harmful Microorganisms @12:01
Diseases in Animals @14:48
Diseases in Plants @15:23
Food Poisoning @17:40
Food Preservation @18:08
Nitrogen Fixation @20:48
#Poison #Diseases #Vaccine #Fertility #Unicellular #Tuberculosis #Algae #Fungus #Unaided #Microorganism #Manishika #Examrace

Dr. Manishika Jain explains NCERT Class 8 Science Chapter 2: Microorganisms – Friends and Foes

Microorganisms/Microbes are small and cannot be seen by unaided eye – we use microscope or magnifying glass
E.g., fungus growing on the bread
Classification (4 Types)
Algae

Bacteria – typhoid and tuberculosis

Fungi

Protozoa – dysentery and malaria


Virus – these are different and reproduce only inside host organisms which can be bacterium, plant and animal – cold, influenza and can even lead to polio and chicken pox

Unicellular – bacteria, algae, protozoa
Multicellular – algae and fungi
These live from hot to cold climate, can grow on other organism or freely

Friendly Microorganisms
Curd, bread and cake
Soil fertility by nitrogen fixation - rhizobium
Organic wastes are broken down into harmless and usable substances by bacteria
Curd – Lactobacillus (multiples)

Examrace is number 1 education portal for competitive and scholastic exam like UPSC, NET, SSC, Bank PO, IBPS, NEET, AIIMS, JEE and more. We provide free study material, exam & sample papers, information on deadlines, exam format etc. Our vision is to provide preparation resources to each and every student even in distant corders of the globe.

Dr. Manishika Jain served as visiting professor at Gujarat University. Earlier she was serving in the Planning Department, City of Hillsboro, Hillsboro, Oregon, USA with focus on application of GIS for Downtown Development and Renewal. She completed her fellowship in Community-focused Urban Development from Colorado State University, Colorado, USA.

#Manishika #Examrace #NSO #NSTSE #Olympiad #NCERT #VVM #examrace #upsc #ugcnet

[ushabs]

Mam very Usefull to children u cover and explain all the concept of lesson very clearly, thank u mam

[santhwanadevi]

Now a days online classes are going on😁😁. But we cannot understand because of the disturbance😣😣, stucking of voice, and network problem by this i am not able to ask my douts😞😞 but by hearing your class my douts are puff..😊😍😀 Thank you mam 😇🙏😇 and how many are watching this class in lockdown or corona time

[vineethamangeeri]

You had explained very clearly
This video had helped me a lot

[dr.n.sumithradevi]

thanks a lot mam .it is very easy to understand.
who saw this video in 2020 hit a like

[prachijain]

Mam Ur explanation is very helpful .Thank you
Please try for English subject explanation too
It will be very helpful

[vrishtishrimali]

Thank you ma'am your explanation is very helpful for me and for each and everyone watching your video.. 👍🙇

[navyasarala]

Mam please make 8 class science NCERT all chapters videos

[ALOKSINGH-mrke]

maam in our book it is written that microorganisms can live in any conditions whether it is too cold or too hot
they r in our planet before the dinosaurs

[harshaemila]

My teacher talk 5 day to completed but you finished in 22.40 min thank you a lot 😀😊

[shyamalibhattacharjee]

Mam thank you for uploading this nice video ☺️☺️😉
You teach very clearly
You clear my all doubts
Thanks again 💖😉💖
Aap bohut aacha parhati hoo 💖💖
I love this video, 💖💖

[bhavinpatel]

Mam you are best teacher I ever see in my life I love your explanation who love the mam's teaching please hit like

[akshithabatchu]

5:07 Ma’am your teaching skills are amazing and not to point out mistakes but “These live from hot to cold climate, can grow on other organism or freely” Ma’am they EXIST freely. Thank you Ma’am for your videos and they really help me a lot.😊

[soubhagyaranjannayak]

Thanks.
For this video.
This video is very very helpful for study and learning.
Thank you so much.

[aakashajmera]

Like who wants manshika maam as teacher in your school
.
.
👇

[niharikajeetendra]

awesome multitalented
superb
best teacher
thank u mam

[hwkutkarsh]

So good explanation all doubt is clear I♥️u mam best teacher 👍😘👌👌👌

[neerajpant]

mam apse aacha koi nhi padha sakta h aap itna gjb padhatii bahut aaca apka hindi channel is also very amazing i am very big fan of you bahut aacha padhai h aap

[salmabanu]

Now a days online classes are going our teachers us your video we can understand ur video thank you mam

[denathareddy]

Mam you uploaded this video on my sister's Birthday
And I understood the lesson very well
Tq so much mam

[shishirkumarpradhan]

And thanks for your better explanation