REVISION 🦠 | Microorganisms Friend & Foe | Class 8 Science chapter 2 NCERT

REVISION - Microorganisms Friend & Foe | Class 8 Science chapter 2 NCERT
This revision video of Microorganisms Friend Foe foe class 8 science have the following points
1) What are Microorganisms
2) Types of microorganisms
3) Friendly Microorganisms
4) harmful microorganisms
5) food poisoning and methods of food preservation
Chapter wise - Notes for class 8 science 👇🏻
drive.google.com/drive/folder...

[@Udayveer_Messi]

8:50 in the formation of curd, Lacto Bacillus is the microorganism which helps in formation of curd.

[@Science_by_Armaan]

Good

[@Udayveer_Messi]

thanks @@Science_by_Armaan

[@Udayveer_Messi]

because of your lecture i got 2nd rank in the class in science half yearly @@Science_by_Armaan

[@Science_by_Armaan]

@@Udayveer_Messi very good dear 💯 keep it up... thodi mehnat or karenge toh aap bhi top karoge 😊

[@AKHAND-BHART9877.]

W0w

[@Callmedevil416]

Lactobacillus is used in the formation of curd . 👍

[@swastikparadisepandey4856]

18:43 1) In making and bevrages 2)In making medicie and vaccines 3) In convertion nitrogen into nitrates by the help of Rhizobium bacteria 4)In cleaning the environment

[@murlidharsurwase3582]

lactobaccilus bacteria is responsible for making curd.....8:43 -household products -commercial products -medicinal uses -environmental benefits -----Shreya

[@poojadeep8889]

Lactobacillus make a curd like kar do comment Ko

[@Mayankgautam797]

😮 hame toh pata hi nahi tha

[@pratham9891]

😂🗿​@@Mayankgautam797

[@freegaming46]

Who is watching this before exam

[@DineshKumar-re7yy]

Me 😅

[@RevatiPradhan-id9sz]

Me

[@PODCAST_GAMER2325]

use phele book nhi kholte hain

[@user-jy1ek1qf8q]

Ma

[@Cursorfreefire]

Me 1day before night

[@user-om2ew7mn9i]

18:31 My name is Avantika Mishra 1.Household products 2.Commercial products 3.Medicinal products 4.Enviromental benefits

[@asishkumarsahoo0707]

I am Asish sir and this revision video is very helpful for me and children studying in class VIII.Thankyou very much👍👍

[@SakshiPrecision]

Sir isme nitrogen cycle nhi h ky 25:54

[@cherishmalhotra8239]

Hello sir I am Cherish and thank you for helping us all students in our studies.... Keep it up and thank you❤❤

[@Science_by_Armaan]

Welcome dear ☺️☺️

[@Futureshade208]

14:16 with the help of weak viruses we can make the medicine of the that particular viruse

[@user-go3yk2hk6z]

Household - formation of curd by yeast Commercial- breakdown of natural sugars into alcohol by the help of yeast/formation of wine Medicinal - antibiotics made from bacteria and fungi Environmental- decomposition of dead organisms ~ aavya

[@Unlimitedsurprises0]

One man clear the revision in shot other than other and easy to prepare for exam and many more.Thank you Bhaiya 🙏🙏🏏

[@Mr_Diamond5993]

Yes me also sir

[@seemakumarisingh2938]

Shraddha

[@Science_by_Armaan]

Welcome dear

[@Kumkumkumari1243]

Kumkum

[@Anu..698]

8:46 LACTOBACILLUS BACTERIA IS RESPONSIBLE FOR CURD MAKING

[@Science_by_Armaan]

Yes dear.. correct answer... Keep learning 💯

[@pankajsingh4807]

Ashutosh Singh

[@prakashsuthar194]

​ 1:18

[@Akshatha.T.Krishna8thA-yh7zv]

Lacto bacillus is the bacteria from which the milk is converted to curd. Thank you sir to give a such nice revision. I am sorry to post this comment very late.

[@ffamitgamer2.0]

A.)House hold products B.)Commerical products C.)Medicial uses D.)Environment benebits

[@dakshaayanvlogs8876]

Hello sir I am daksh ronjhwal your video's are very helpful for us ❤

[@b_747]

Very nice experience on this channel. Kudos to sir for his time he spent. I understood everything.

[@Science_by_Armaan]

Glad to hear that dear ☺️

[@ParirajChauhan-wq7cp]

My name is pariraj chauhan and I am from banswara, lambaparda I always see your videos and explain them in my class in 108 students by this i have earned many batches Thanks dear sirr🤗

[@mukramkhan7971]

friendly microorganism 1. medicinal uses 2. house hold products 3.commercial products 4.environmental benifts

[@NitinKumar-eb7vr]

Friendly microorganisms A household product = curd cak help of yeast . B comercial product= wine alcohol these formula is natural sugar + yeast = alchol

[@mahimanagar3303]

Speeling seekh lo

[@shrinivasdhade]

🏠home hold products 🕺 Comercial products 🌡️ Medical uses 🏞️ Environmental benefits

[@kumarashutosh3888]

Sir ager Microorganisms Moderate temperature me jinda rehte hai too unhe kaise kill karege ???

[@kumarashutosh3888]

Sir pls say ??

[@Science_by_Armaan]

Temperature suddenly increase karke say 100°C ya suddenly decrease karke like in below 0°C ... Ese conditions mei most of the microorganisms would not survive....

[@kumarashutosh3888]

Thanks you sir 👍🏻

[@ASSWAG-fc8by]

Hi this is Ariz i used to study science with physics wallah but i saw this video 100 times better than physics wallah i love it .

[@knowledgeandgamesofaadvikh568]

Sir aap bahut underrated channel ho. Aap definitely more subscribers deserve karte ho. Thank you

[@bindushah3926]

Sir one doubt in my book there are five types of microorganisms bacteria fungi virus protozoa Algae this right ye wrong?

[@Science_by_Armaan]

Well Viruses are not microorganisms because they are not truly living! When they are outside the living body they act as non living they become alive when they infect a living organism... Yes bacteria, fungi, protozoa and algae are microorganisms...

[@drpramodpaharia9720]

Sir virus are microobes as they are small but they are not cell 😊😊​@@Science_by_Armaan

[@dancersworld..]

I'M PARIDHI , and thank you sir for making a revision video , 😊 its very helpful for us ❤

[@user-hf2pq6vz7x]

😂

[@anshparmar222]

Help me Please try Just a joke No iam serious Kha se ho

[@ShouryaPreet]

Hlo sir muje aap se tuition coaching le ne hai Pls reply

[@Science_by_Armaan]

Please drop your email. You'll get the email id from our channel description.

[@user-pd8xc5zb5o]

Sir...are there any microorganisms which acts both like a friend and a foe? ~Aastha

[@Science_by_Armaan]

Hanji! Agar aap microorganisms ki bat karte ho toh both bacteria and fungi ke ander apko mostly dono beneficial and harmful microorganisms dekhne ko milte hai! Dear Aastha bacteria ek microorganism hai jiske ander Lactobacillus, Rhizobium, Nostoc ye sabhi hamare liye helpful hai! Lactobacillus curd banane mie kaam aata hai baki rhizobium (symbiotic association with leguminous plants) and Nostoc free living nitrogen fixing bacteria hai! Wahi par harmful bacteria mie streptococcus pneumoniae jo pneumonia cause karta hai Iske alawa fungi bhi microorganism hai jese ki yeast jiski help alcohol banayi jati hai (fermentation) and cake banane mie bhi use hota hai! Penicillium again ek fungi hai jiski help se penicillin naam ki antibiotic banayi jaati hai! Wahi par bread mould (Rhizopus) bread ko kharab kar deta hai ya phir Trichophyton, Microsporum fungi ringworm cause karte hai

[@user-pd8xc5zb5o]

Thank you sir 😊

[@user-ub2jv8zj5i]

Sir aap na itna bara reply kasa likha 😅

[@savitrinagar4398]

(LACTOBACILLUS) a bacterium that promotes the formation of Curd . Thanku very much sir . I understand everything 😊.

[@Pokemon.713]

(a) house hold prodect (B) commercial prodect (C) medicine uses (D) environment benefits

[@Science_by_Armaan]

Very good

[@ajitkumargupta1443]

My dear sir, I am Rohit gupta, you create foundation, thank you🙏🙏🙏🙏

[@atrexlv7481]

Sir I am AaYu!! Thank you sooo much for this one short revision. I have my exam tomorrow and this helped me a lot

[@afantasticlife...261]

Same bro

[@atrexlv7481]

Your name is aayu??

[@NileshPandey-iv3rm]

No.

[@KHUSHAL473]

8:48 lactobacillus bacteria sir please tell me its right or wrong 😊

[@Science_by_Armaan]

Very Good

[@Babitakumari-me8hp]

Lactobacillus is used for the formation of curd. Thank you sir..... My name is Rachit

[@Ajay_Verma19]

8:50 Lacto bacillus is the reason behind the formation of curd.

[@AM.I.Chinnari]

Hi,l'm Chandana and this video really helped me to revise me this chapter thank you 🤗👌

[@BashirShaik-gj7sx]

There are 4 main benefits of friendly microorganisms.They are 1.household products 2.commercual products 3.medicinal use 4.environmental benefits

[@Science_by_Armaan]

Excellent dear

[@Sujal_karenu]

No it's good but what u told us it's not enough....

[@Science_by_Armaan]

@@Sujal_karenu Yes you are right... This is a revision video. It is for those who've already studied this chapter completely but they want to revise the whole concepts in a shorter time period. For detailed explanation you can go for our long videos on this chapter. Thank you

[@Sujal_karenu]

@@Science_by_Armaan good 😊

[@user-qk5po1th8x]

Lactobacillus bacteria. Leeuwenhoek in 1677 while looking at a drop of pond water under safe made crude microscope found small living things moving in the water .He gave the term "microorganism".

[@rishobhgupta8843]

Sir the immuno cell are called WBC white blood cell present in blood. -Rishobh gupta

[@Pzendo]

Sir lactobacillus bacteria involve in the formation of curd❤

[@user-jo4ut5vq7g]

Best teacher in the milkyway galaxy 🌌

[@Science_by_Armaan]

Thank you 😂❤️

[@deepakagarwal7119]

Lactobacillus make to curd what is this farmantation

[@user-jt2ys4kv8j]

Tetrapack aur pasteurized milk ma kya difference h ??

[@rockbhai3906]

a) House hold products b) commercial products c) medicinal uses d) environmental benefits 18:45

[@Rihan478]

Mara bata ha to bata bata mara land ki bale

[@Science_by_Armaan]

Very good 💯

[@RidaRida-cu5fi]

Lactobacillus Sir pls don't stop this channel 🙏

[@es_naitik.abhiraj769]

Lactoballius is used they convert sugars or lactose into lactic acid and starts the formation of curd

[@__am001]

Friendly microorganism . They are used in the preparation of curd bread cake ( aman )

[@Science_by_Armaan]

Good

[@impossibletopossible1729]

Myself Ashish Ranjan from Sheohar, Bihar

[@Science_by_Armaan]

Welcome Ashish Ranjan

[@impossibletopossible1729]

@@Science_by_Armaan thanks sir..

[@harshitachandra1206]

Thank you bhaiya for making this video this video is very nice excellent explanation You are a great teacher 💖☺️

[@Science_by_Armaan]

Thank you so much it means a lot 🙏🏻

[@AmanNishad-zr3uo]

I love my teacher

[@VedantRAJ-bi3yw]

Lacto Bacillus is an microorganism which make milk into curd.

[@ffindiangamer2.067]

Sir one doubt sir antiboides are able to kill all microorganisms

[@Science_by_Armaan]

Not all, generally viruses and bacteria and some microbial protozoa like that of malarial parasites

[@jayantidevi7841]

Hi, I'm Soumya and this video really help me to revise me this chapter thank u and sorry i know it's late but HAPPY TEACHER DAY🎉

[@satyanarayanyadav3420]

Sir your teaching is world best😊😊❤

[@khanaksnehi964]

Good evening sir ....Do you also get the sose prepared ..?

[@itsalphagamerz]

a) House hold products b) commercial products c) medicinal uses d) environmental benefits

[@hardikrawat-2908]

Only for learn Hardik rawat

[@gaming_poison_]

Tomorrow is my exam thanks😢😢

[@Pokking9493]

🎉all the best

[@Pokking9493]

Science mai fail hona 😂🎉

[@rehanaparween6126]

1) House hold products 2) commercial products 3) medicinal uses 4) environmental benefits

[@goriyakumari4022]

A bacterium called lactobacillus multiplies in milk and converts it into curd.

[@marvel2242]

Wonderful ❤

[@SUNITASINGH-if1hz]

Excellent teaching...

[@Science_by_Armaan]

Thank you 😊

[@Snappodcast24]

I am sonakshi , 1 house hold products 2 commercial products 3 medicinal uses 4envirinment benifits

[@mukeshdubey2936]

Lactobacillus is used to formation the curd

[@medicomewati]

Very good Arman Boss🎉🎉

[@saumysamant8229]

Thank You so much sir

[@shriprakashrai6961]

Lactobacillus is the microorganisms used to form curd from milk

[@pratik_gaming_8888]

Lactobacillus bacteria is useful for making for curd. 8:46

[@Zubiflybaording]

Sir aapke medicinal uses Se muje meri medicine khane ki yaad aagayi😂 thanks sir

[@Science_by_Armaan]

Welcome 😅

[@mainavlogs1541]

Good

[@Justin_battle]

Sir presevative kya hota hai

[@Science_by_Armaan]

Ese substances jo food items ke sath kix kiye jate hai jisse food spoil na ho.. yani food kharab na ho kayi dino tak

[@Science_by_Armaan]

Ese substances jo food items ke sath kix kiye jate hai jisse food spoil na ho.. yani food kharab na ho kayi dino tak

[@Justin_battle]

Thank u sir❤❤

[@doremonandnobitashorts7421]

Lactobacillus Bacteria Are used in preparation of curd

[@user-om2ew7mn9i]

8:50 Ans=Lactobacillus

[@harshitaverma3283]

Thank you for explaining this chapter 😊😊

[@Science_by_Armaan]

Welcome dear ☺️

[@letsgo5409]

SAURABH RATHOR

[@RoyalRajput-tg4dv]

Lactobacillus is the bacteria helps in the formation of milk to curd.

[@notitle39]

2:56 is spaling mistake algae

[@aadugamer7856]

Aadarsh kumar

[@Docummentay]

100 k soon

[@Docummentay]

Party kab hai sir !

[@Science_by_Armaan]

Jab aap kaho tab 😂

[@Science_by_Armaan]

Thank you 😊🙏🏻

[@priyampandeyji671]

8:38 question ka answer LACTO BACILLUS microorganisms

[@ManjuSharma-ml1zo]

What is the meaning ofstaphylococcus epidermis Mansi sharma

[@Science_by_Armaan]

Staphylococcus is a type of bacteria. In general Epidermis is the outermost layer of the skin or a plant body.

[@MANISHAYADAV-zp2qi]

My name is Ananya Yadav and thank you for making such nice and amazing video

[@Science_by_Armaan]

Welcome Ananya... Aap apne or bhi friends ke sath hamare videos ko share kar den... Isse hame grow hone mei help milegi

[@pradiptasworld2167]

Wonderful ❣️

[@Science_by_Armaan]

Thank you 🙏🏻

[@pradiptasworld2167]

My pleasure 😊

[@harry_stricx_01]

Yes

[@fmadgaming1k102]

Hello

[@Pratap_prince_bhai]

Hello

[@Insaancontent]

Sir please do upload videos on every year because I'm watching this on 2024

[@Selfgamerz102]

Lactobacillus is used in conversion of curd

[@SoftToonz22]

10 k soon bro

[@Science_by_Armaan]

Thank you 😊

[@SoftToonz22]

​@@Science_by_Armaan dekha 10k hogaya na

[@SoftToonz22]

BHool Gaye kya mai ishan ur old subscriber

[@Science_by_Armaan]

@@SoftToonz22 aap sabhi ki vajh ae possible ho paya hai.... thank you so much

[@Science_by_Armaan]

@@SoftToonz22 nahi ese toh yad ho aap 😁

[@The_Red_777_]

Best sir...😊😊😢

[@Science_by_Armaan]

Thank you 😊

[@somreader]

Lactobacillus bacteria 8:50

[@hinduff4330]

Hii

[@Science_by_Armaan]

Very good dear ☺️

[@SunitauriyaUriya-ys2zk]

Multicellular has only one example that is yeast Household production Environmental benefits Medical uses and Commercial products Ligam

[@Science_by_Armaan]

Good... Aapne thoda dhyan se nhi dekha... All the fungi are multicellular but only yeast is the type of fungi which is single celled! Overall you are good 😊

[@Docummentay]

Mast bro

[@Science_by_Armaan]

Tq

[@dhirendramahanta3855]

Friendly microorganisms: a) house hold products b) commercial products c) medicinal uses d) environmental benefits

[@user-ik7eo7ln1s]

1.Medicinal source 2. Commercial source 3. Cleaning environment 4. Vaccine

[@pranyakriti8455]

Lactobacillus is used in formation of curd. ~ Pranya

[@Science_by_Armaan]

Very good Pranya 😊

[@deadlyharsh7834]

Wonderful teaching 😀😀👏❣️

[@rakhijha9703]

Hi sir main yaha pahali bar Ayaan hoo mera naam shivanand

[@user-tr4cz5mz9j]

lactobaccilus bacterias are used for making the curd

[@user-mg5re8rj8t]

Sir jamen bolte hai jisse curd benta hai

[@NeerajNeelam01]

Lactocillus is used in the formation of curd

[@Sumaiya_yt]

1. Household products 2. Commercial products 3. Medicinal uses 4. Environmental benefits

[@PalviSondhi-st7qp]

1Household products 2 Commercial products 3 Medicinal uses 4 Environment benefits

[@Amreet247]

Lactobacillus is used for making curd