Microbes Friend and Foe in One Shot | Biology - Class 8th | Umang | Physics Wallah

📝 For complete notes of Lectures, visit Umang Batch in the Batch Section of PhysicsWallah App/Website.
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▶️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.
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🔴 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.
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28:26 Fermentation : The process of conversion of sugar into alcohol is known as fermentation.

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In

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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

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Yeah, But in the absence of oxygen and energy is also formed in this process.

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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.

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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

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1:14:20mam it is hotted at 70 degree Celsius not at 700 degree Celsius

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Aspergillus produces only citric acid not acetic acid. Acetic acid is produced with the help of a microbe called acetobacter

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the process of conversing of sugar into alchol is known as fermentation

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1:14:15 Milk is not heated to above 700°C. It is heated above 70°C. 😊😊

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Yep

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Paramoecium, Euglena, Amoeba and Spirogyra is also part of microorganisms

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PROTOZOA

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The first three are protozoan which mam mentioned and spirogyra is a fungi which also she mentioned!

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​@@uttkarshsingh359 algae*

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Hi

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Paramoecium,euglena and amoeba are protozoa and spirogyra is an algae 👀

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28:45 mam toh fir anaerobic respiration aur fermentation ke bich mien difference kya hai?

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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

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My board exams are in march um preparing frm today tysm mam

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34:05 funny moment 😅😅

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Tho tuje buri kiyo lagi

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