Microbes Friend and Foe in One Shot | Biology - Class 8th | Umang | Physics Wallah
ฝัง
- เผยแพร่เมื่อ 14 ม.ค. 2022
- 📝 For complete notes of Lectures, visit Umang Batch in the Batch Section of PhysicsWallah App/Website.
📲PW App Link - bit.ly/YTAI_foundation
🌐PW Website - www.pw.live
▶️Complete CLASS 8TH - SCIENCE ONE SHOT Lectures - • Science - Class 8th NCERT
In this lecture of Umang batch, BhagyaShree ma'am is going to teach you the chapter-Microbes Friend and foe.
Topics covered in this lecture are-
•What are microbes?
•Different categories of microbes
•Friendly microbes
•Vaccination
•Microbes in enviroment
•Soil fertility
•Diseases
•Vectors
•Pasteurization
•Nitrogen Fixation
There are many other important chapters that we are going to cover in upcoming videos for class 8. Stay tuned with PhysicsWallah Foundation.
----------------------------------------------------------------------------------------------------------------------
NOTE: This batch is completely FREE, you just have to click on the "BUY NOW" button for your enrolment.
🔴 Details about the batch -
• Recorded Lectures for Class 8th Students.
• PDF Notes of each Lecture will be available on the PW App.
• Weekly Lecture Planner will be uploaded on PW Foundation Community Page.
• Classes will start from 10th January and we will cover the whole syllabus by 10th March.
🎦 Eight Lectures per week will be uploaded.
----------------------------------------------------------------------------------------------------------------------
📌 PHYSICS WALLAH OTHER CHANNELS :
🌐 PhysicsWallah - Alakh Pandey : bit.ly/PhysicsWallah07
🌐 Competition Wallah : bit.ly/CompetitionWallah
🌐 JEE Wallah : bit.ly/JEEWallah
🌐 PhysicsWallah Foundation : bit.ly/PhysicsWallahFoundation
🌐 NCERT Wallah : bit.ly/NCERTWallah
🌐 Defence Wallah-NDA : bit.ly/DefenceWallah
🌐 PhysicsWallah English : bit.ly/PhysicsWallah-English
🌐 BSEB Wallah : bit.ly/BSEBWallah
📌 PHYSICS WALLAH SOCIAL MEDIA PROFILES :
🌐 Telegram : bit.ly/PwTelegram
🌐 Facebook : bit.ly/PWFacebook07
🌐 Instagram : bit.ly/PWInsta
🌐 Twitter : bit.ly/PWTwitter07
For any queries or complaints Visit :
For PW APP : physicswala.page.link/?type=c...
For PW Website : www.physicswallah.live/contac...
#Science #Class8 #Umang
![[TH] VCT Pacific Stage 2 - Playoffs Day 1 // GEN vs RRQ | TLN vs TS](http://i.ytimg.com/vi/JhkzKOhvOps/mqdefault.jpg)
Who are watching video in 2024
me😂😂😂
Fr 😂😂😂
Me 😅😅😅😅
Me 😂
@@Ananya_singh250 😆
Who scored 90 above like 🎉
Me.. 95.3percent 😊
Me 98% in S.N.public school
97.9
99.99percent
Your father my dear son😂
@madhurinaiak😂😂4255
Who scrore 80% above in class 7th like
93% 🙌🏻
94.17%😊
Yes 98.4
@IND_offcial1243 I also scored 93%
@@DhanviCaterers_Jaipur okay well done bro ❤️❤️
Who is watching this in 2024 bcz exams are close
Who score 95%+ in 7th
100%1st
womp womp
95.3 😄
I scored 96% in 8th class
I scored 98%in 7th
Who are watching in 2024🎉🎉
Me
Me
Meeeeeeeee😅😅😅
Who score 90% above in class 7 like this coment
I
Thanks mam❤❤❤ i understand so easily 😊😊
Hi hat
Kon kon 8th ka final syllabus dakh ka ider aya ha 😂
Ma na to nahi socha tha ke ya aya ga
Bhai science ke exam ke 1din phele aaye h padh ne😎😎😎😎
@@STAR-sx5ig sahi bhai
Kon se school me ho bhai
😂 tomorrow is my science exam
Mine science exam is on 1st March and this chapter is of highest marks
Physics wallah is the best online teaching platform ,
Thx a lot to PW team.
Absolutely right
Yeah👍
yep
jindabad PW
@@hzafa_27 hey do you know arpita?
All the students in class 8 watching this video in 2024 correct tha pasteurization is occurred in 70°C
Students who watching in 2024 please like
👇👇👇👇👇👇👇
Yes in the book also it is 70°c not 700° c
It's the best platform to learn anything
It is the best youtube channel for class 8.
Absolutely right
Correct✌️
Yes but it's very boring to make notes 😭😭
@@megatech9447 Nope but you have to focus to make notes
@@megatech9447 It is just an art
Who are watching this video in 2024 ❤️🔥❤️🔥
Best youtube channel for class 8th..😊😇
Thank you 😊
Am
@@rk3542 i alsooooo
I'm
@@shivrajmeena3413 well done
Me
43:16 it's is most important channel for me and all class students ❤❤🎉🎉
34:05 funny moment 😅😅
what is the funny thing? mujha samhaj nhi aaya
You did a good job especially for me, because I didn't have that much money to study well on TH-cam, It was of great benefit to the poor student...
Thank a lot Alakh Sir👍
You should download Physics Wallah and subscribe 'UMANG' batch I is free of cost
,...MMMMNNNNNÑN
Goo
You say that, you have not such money to study offline or (TH-cam)!!!!!!!!! Check your line bro
@@anshuldhoundiyal9501 better go and get yourself a mirror...Ohh!! sorry you dont even have the money to buy one...
28:26 Fermentation : The process of conversion of sugar into alcohol is known as fermentation.
Mam told the definition of class 10th
@@RHaz-vo6hv no, It is science awareness book
In
No,
Fermentation: The process of Turning sugar into Alcohol in the absence of oxygen. By the action of yeast is Called Fermentation....
You missed Some Line bro
Yeah, But in the absence of oxygen and energy is also formed in this process.
Ma'am according to NCERT - The milk is heated to about 70 degree celcius for 15 to 30 sec and then suddenly chilled and stored. Called PASTEURISATION
Yeah!!
I was confused because she said for 700 degree celcius
I was too confused about it
Yes bro you are right
Nice explanation.👏🏻👏🏻👏🏻
Thank you mam for such a great explanation ❤❤
Aspergillus produces only citric acid not acetic acid. Acetic acid is produced with the help of a microbe called acetobacter
Right
Itni padhai hamse nhi hoti hein 😂❤😂
Kitne tez Bache hai
Dharti par
@@user-mv6xw6cb1b Sahi baat hai
@@user-mv6xw6cb1b Bhai ye toh logic Wali bat hai aspergillus ek fungi hai or voh acetic acid nai produce Kar Skta kyuki use bas acetobacter hi produce krta hai acetic acid ko or acetorbacter ek bacteria hai toh its simple
It is a best learning Fondation for 8th class
Thank you very much.
Who are watching this video in 2024❤❤
34:07 I was wearing headphones 🙂
🤣🤣🤣🤣 kaan thik hai ki koon - voon aa gyaa😅
BAHAHAHAHA
Wtf
Me Bluetooth se sun Raha hnu
Mai apple airdots pro 2nd generation se sun Raha hu
Aur iPhone 15pro use kar raha hu
My sister always read from physics wallah and I thought that when I will be in class 9th then I also read from physics wallah but today I suddenly found that physics wallah also teach for class 8... This video lecture is very helpful for me....Thank you mam.....😊
Same happened with me
Welcome bata
It's also happened with me my brother was watching physics wallah I love physics wallah..... 😀😀..... ❤
Very nice mam TQ for this video and
I have cleared my all doughts mam thanks a lot😍🤩
Doughts was funny 😂😂
Hi PW, I have a doubt. If lactose is a sugar, then why is curd sour sometimes?🤔🤔
Yes
Have you heard of lactic acid
How are you in 8th
Because when we leave curd for long time more microorganisms get reproduce as there is more reproduction of lactobacillus curd tastes sour
@@tanveeratak5901bhai yeh kaun sa tareeka hai baat karnai ka 😒...eus bande ko toh sirf doubt hi tha na
@@tanveeratak5901ye sayad nursery mai hai tabhi toh doubt ka matlab nhi pata😅😅😎
Who are watching this video in 2024❤
Yes😅
I am very Happy because PW is available for class 8 🤗
i am also happy
Right 👍🏻
LITERALLY HAPPY THAT PHYSICS WALLAH IS AVAILABLE FOR 8 CLASS TOO
Agree
I also agree
MEE TOO. AGREE
Viral ho jaate hai ye log
Yes I also very happy
Now my all doubts are clear .
Thanks.
Bhai kon kon 2x m dekh rha h like mehh
Me
Me
1.75x
PW is the best channel.. Hats off to Alakh sir who is doing such a great work to help us in our studies.. Alakh sir is really awesome 🔥🔥
It is the great benefit to the poor student...
Such a good job especially for me 👍
Thanks a lot.......
Physics wala foundation..
Alakh Sir👍👍
Khan sir"s channel is also there
@Adhyayan Tripathi yes😊
Hats off to Alakh sir and Khan sir ....
1:14:22 This is for all students.
The actual temperature is 70°C. It looks like there was a typo there but the actual temp is 70°C which is also written in our NCERT.
Thank you.
Thank you! :D
thank you bro
I was also confused 😅😅 thanks❤
Yes I have also commented that
Yes I am seen this word 😄
Explains the curd formations?
Ans: Milk is converted into curd or yogurt by the process of fermentation.The curd forms because of the chemical reaction between the lactica acids bacteria and casein.
Kis kis ko lgta hai ki ye mam ki aavaj Manisha Rani jaisi lgti hai 😅
Who got good marks after watching this video.
my exam is tommorow
There is a very tiny mistake in this video. In pasteurization milk is heated to about 70 degree Celsius not 700 degree Celsius.
Other wise the explanation is great mam, you cleared my all doubts😊
😊
😊😊
😊😊😊
😊😊😊😊
😊😊😊😊😊
Thank you so much mam for this video❤❤❤❤❤❤❤❤ ....This is the best channels for class 8😊😊😊❤❤😊❤😊❤😊❤😊❤😊😊❤😊❤😊❤😊❤😊❤😊❤😊😊❤😊❤😊❤😊❤😊❤😊❤😊❤😊😊❤😊❤😊❤😊
fermentation is the process of converting sugar into alchol
Legends are watching this video 1 night before exam😂😂😪
Like me 🤟
Like as me
Like me
Also me vro 😂
Yes
1:14:20mam it is hotted at 70 degree Celsius not at 700 degree Celsius
700 degree me to dud Gayab he ho jayega
Who score 50percent in exam 😢😢😢😢😢😢
But is score 75+😂😂❤😂
Who are watching this in sleeping in bed like
Ed
😅
Me
At morning 4:50
Your word 'bacho' is awesome👍👏
Bacho pronounce like 'bocho'😂😂😂😂
Paramoecium, Euglena, Amoeba and Spirogyra is also part of microorganisms
PROTOZOA
The first three are protozoan which mam mentioned and spirogyra is a fungi which also she mentioned!
@@uttkarshsingh359 algae*
Hi
Paramoecium,euglena and amoeba are protozoa and spirogyra is an algae 👀
fermentation is the process of converting sugar into alchol 28:29
LEGENDS ARE WATCHING 1 DAY BEFORE EXAMS 😂😂😂😂😂😂.
😅😅😅😅😅
Fr bro 😂
me
No bro I have just started 8th class 2024 -2025 I am here to complete my syllabus very fast
Fr
PW was always a legend
Pw is a legend
@@dogesie and will be a legend
Not was but is
@@itsgautamsharmaofficials3295it was, it is now and it will be
Yeahhhhhhhhhhh ❤
I am in class 11 and i am studied in class 10 biology from mam she is absolutely a great teacher her teaching style is awesome
Agree
Didi * I studied hoga
@@priyanshujha9827 hoga....?????
Baiya miss ka likha eat smagh hi nahi arrrahai par thora thora sanghh me aa raha hai
But...Why are you Study Class 10th Biology instead of 11th bio??🤔🤔
Who is here for board exams 😢🎉
Thank you mam
I appreciate your intelligence and way of teaching, It helped me a lot but i think it would be better if the chapters are taught in a more conceptual way including definition and extra information as now days competition among students is high i, e why it will help us more, to gain knowledge about upcoming topics
Hope you will do the same please which I told and it will be your most kindness for me and it will help me
Hope you will not ignore and you will teach us other topics as well
Thanks❤
Best teacher of Biology
Thankz Alakh Sir to give a wonderful batch with wonderful teacher 😇😇😇😀😀
I am study in class 8 I understood alll taught by mamm best teachers in this platform
Learn some grammar dear!
Maths sir joined the chat
Mam l have a boubt 😮 that you told that microbes live every where and you also told that they also leave in harsh conditions where heigh temperatures but mam but mam when we learned the topic of pasteurization there mention that when we heat milk at 80 degree Celsius all harm full bacteria are die due to heat then how you can say that they also leave in 🌋 l thought it is not possible 🙆 so ,l requested you to please provide me this question answered ❤❤❤❤
When the milk once got hot then they kill but after sometime they again affect the milk because it's get cold because bacteria move one place to another
😅
@@mamtamaurya9379 g
On boiling milk only harmful bacteria are killed . But not helpful bacteria . They are still present in milk and same for volcano 🌋
Thanks for sharing your teaching ability thankyou again and again....
This is best brilliant youtube channel to learn and understand...Wow mam so nice
I dont like science teaching but maths teacher ritik sir is just on next level
15:17 🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣
My sister always learn from physics wallah and I thought that when I will be in class 9th then I also learn from physics wallah but today I suddenly found that physics wallah also teach for class 8... This video lecture is very helpful for me....Thank you mam.....😊
same here!
Same bhai
*Amazing explanation* 👏 👌 *hats off to* *Physics Wallah* 😊
Yess😊😊❤❤❤❤❤
Aap logo ko pta hai mujhe class 7th me kitne percentage mile hai chalo mai bata deta hun pure 68.56% aur mai apne class me first bhi ho gya
😂😅😮
Legends are watching one day before exam 😂😂😂
Who is watching this video before exams
Me
Yes present 🙌✨🗿
Me!😂
Me also
😂😂😂😂😂
Who are watching befor one day of exam in night😂😂😂
#me
#me
#me
Me
Me
Pasteurisation - heated 70°C not 700°C for 15 to 30 seconds
Yes
Thankyou so much mam for you best explanation ☺
Thanks ma'am because This video lecture is very helpful me🥰
Very nice style of explaining ❤ awesome!
❤❤
Bat karogi
🎉🎉😢
Tu apana nam papa hi pari tak Google acccount 😀 1:10:37
अच्छा maam
People watching in 2024...😁✨️
Maam app bhut achi ho bhut cute 🥰🥰🥰 ho app bhut accha se padhate hai or samajh me bhi aa jata hai thank you maam
Thank you mam ,this was very helpful for my studies.I love physics wallah🙏🙏
28:45 mam toh fir anaerobic respiration aur fermentation ke bich mien difference kya hai?
those cells can naturally survive without ANY oxygen whereas anaerobic respiration aids us in lack of oxygen but still limited supply , so ananerobic respiration helps us by excreting lactic acid but fermentation is in bacterias only.
jai shree ram
Thanks 🙏 mam for this great explanation
💪💪
❤❤😊😊
38:06
Amazing 👌👌
Yep
1:08:24 that hoop sound
You are unique just believe in you😊
Who is watching this video in 2024😂
BEST Teacher I Have Ever Seen In My LIFE Impressive Handwriting Great DaY💙💙💙💙💙💙💙💙
Mam corona has a use as it helped us in our exam time
1:14:15 Milk is not heated to above 700°C. It is heated above 70°C. 😊😊
Fungi ❌ Funji ✅
Bread ❌Bread✅
Yeast ❌ East ✅ 😂😂😂😂😂😂😂😂😂😂😂😂😂
I love this channel to watch you clear all of my doubt and I am the topper of my class 💗
Woahh niceee keep it up topper ! 😉 Best wishes
Wow
@riyapal7733 good 👍👍
FOR ALAKH SIR -- This man is literally born to make history
And for all students you are a spammer
@@Mahika291 why are you telling like this? He said ✅️
He already make a history
Thank you mam I am very happy because you explanation amazing
It is very helpful for me and all students
Best teaching channel for class 8 to 12.
Yess.....
thank you mam for this video i understand this chapter very well..
Yes
mam world war mein penicillin ka kya kam tha
To ,heal injury 🩸🤕 of soldiers !!
thanks@@adityachivate2516
Mam what ever you write on the board i write it too its just like notes.
It helps in my exams. 😊
Thanks mam for yur teaching style I can understand all the chapter easily
O sir 😂😂
please write little smaller explanation is very excellent thank you very much
Thanks mam❤❤❤
33:20 best part of Alexander
Physics Wallah is best channel for class 8....thanks ma'am for your wonderful explanation
Right
Matab bhai ma'am to 1:20 itni der khade khade padhai hai. That's why pw teachers are the best
Han han jake game kel yaha q aya
What is the difference between vector and carriers ???
Vectors are the insects which the bacteria has entered their body then they send by their mouth by biting and carriers are those which carries bacteria or any mico organisms by their legs by wandering from mud to food
Dettol kills 99% of all germs that 1% of germs will be : you killed my all parents and friends why you leave me 😢😢😢😢😡😭😭...
Mam, Thank u so much ❣️
Very good channel for study 😁😁