MICROORGANISMS-POST -4


GOOD MORNING AND WELCOME 

Today we begin this class with a video.

This video talks about FOOD POISONING . I'm sure each one of you has had a bout of vomiting and diarrhoea  at some point in your life up till now. This video makes for an interesting watch. Check it out. Make notes. It will help you at some point in life.

https://www.youtube.com/watch?v=6VOWOzM6fHs&t=334s


I really hope that you liked the video. This video is self explanatory. You may want to play it again.


POINTS TO REMEMBER/NOTE

  1. Bacteria and fungi multiply fast in warm and humid conditions
  2. Spoiled food can be identified by its unpleasant smell, changed colour and bad taste.
  3. The common bacteria that cause food poisoning are: Salmonella, Staphylococci and Aspergillus.
  4. Raw food should be washed thoroughly to remove dirt, pesticides and manure.
  5. Food should be cooked properly to kill the microorganism                                
Food Spoilage: Causes, Food Preservation, Dis/Advantages and Examples




Food Spoilage: Causes, Food Preservation, Dis/Advantages and Examples     Shutterstock - PuzzlePix



Unpleasant Smell Stock Illustrations - Getty Images



GENERAL SYMPTOMS OF FOOD POISONING

The symptoms are of general food poisoning are : fever, vomiting, diarrhoea, and abdominal pain. More serious symptoms include a high fever, chills, low blood pressure, redness, swelling, and blisters on your skin. If the bacteria enters an open cut, it can become a more serious infection.

                         Researchers find possible antidote for paralysis in botulism cases ...

Botulism is a rare and potentially fatal illness caused by a toxin produced by the bacterium Clostridium botulinum. 

The disease begins with weakness, blurred vision, feeling tired, and trouble speaking.

This infection is generally found in canned food.

The bacteria, Clostridium botulinum, grows rapidly in anaerobic conditions and produces a toxin that causes food poisoning.

This bacteria and the toxin produced can be easily destroyed by heating the food for a few minutes at 100 degree centigrade.


Canned Food Drive Stock Pictures, Royalty-free Photos & Images ...



The Q and A of this topic covered will be sent to you via whatsapp. You may also read about it on page 37 of your textbook.




Comments

  1. Abhay Singh upmanyuMay 19, 2020 at 10:16 AM

    Good morning ma'am I am ABHAY SINGH UPMANYU of 8D

    ReplyDelete
  2. AnonymousMay 19, 2020 at 10:22 AM

    Good morning Ma'am I am Achyut Tripathi of class 8 D

    ReplyDelete
  3. Daksh martinMay 19, 2020 at 10:36 AM

    Good morning maam i am Daksh martin

    ReplyDelete
  4. Krishna GhoshMay 19, 2020 at 10:36 AM

    good morning mam

    ReplyDelete
  5. AnonymousMay 19, 2020 at 10:40 AM

    Good morning mam I am Anas Ahmad of class 8D

    ReplyDelete
  6. Akshat RauthanMay 19, 2020 at 11:05 AM

    Good morning ma'am I'm akshat Rauthan

    ReplyDelete
  7. Arpit Jonathan PillayMay 19, 2020 at 11:10 AM

    Good morning Maam I am ARPIT JONATHAN PILLAY

    ReplyDelete
  8. ROHANMay 19, 2020 at 11:12 AM

    Good morning ma'am I am rohan Bisht

    ReplyDelete
  9. Maanvik SoodMay 19, 2020 at 11:16 AM

    Good Morning ma'am;this is Maanvik Sood

    ReplyDelete
  10. Ojas punjMay 19, 2020 at 11:18 AM

    GoodMorning Ma'am I'm Ojas Punj

    ReplyDelete
  11. AnonymousMay 19, 2020 at 11:38 AM

    Good morning mam
    I am aarush of class 8d

    ReplyDelete
  12. Akshat RauthanMay 19, 2020 at 11:44 AM

    Good morning ma'am I'm akshat Rauthan

    ReplyDelete
  13. Maneet GunawatMay 19, 2020 at 11:51 AM

    Good morning mam ...
    I am Maneet Gunawat of class 8D

    ReplyDelete
  14. AnonymousMay 19, 2020 at 11:52 AM

    Good morning ma'am Ronald Jo Joseph

    ReplyDelete
  15. UnknownMay 19, 2020 at 11:52 AM

    Good morning ma'am I am Alan Richard

    ReplyDelete
  16. Varun negiMay 19, 2020 at 11:55 AM

    Good morning Ma'am I am Varun negi

    ReplyDelete
  17. PreetikaMay 19, 2020 at 11:58 AM

    GOOD AFTERNOON

    ReplyDelete
  18. JonathanMay 19, 2020 at 11:59 AM

    Good morning ma'm . I am Jonathan

    ReplyDelete
  19. Akash DcostaMay 19, 2020 at 12:00 PM

    Good morning mam I am Akash Dcosta

    ReplyDelete
  20. Simon josephMay 19, 2020 at 12:02 PM

    Good morning mam I am Simon Joseph

    ReplyDelete
  21. Gurdev SinghMay 19, 2020 at 12:02 PM

    Good morning ma'am I am Gurdev Singh Class 8D

    ReplyDelete
  22. OJAS SABHERWALMay 19, 2020 at 12:03 PM

    Good morning ma'am , I am Ojas Sabherwal

    ReplyDelete
  23. Aron haokipMay 19, 2020 at 12:04 PM

    Good morning Ma'am iam Aron haokip 8D

    ReplyDelete
  24. DeependraMay 19, 2020 at 12:10 PM

    Good afternoon mam. This is DEEPENDRA KUMAR SINGH.8-D

    ReplyDelete
  25. Shaun DsouzaMay 19, 2020 at 12:12 PM

    Good morning my name is Shaun Dsouza

    ReplyDelete
  26. PrabhgunMay 19, 2020 at 12:13 PM

    Good morning my name is Prabhgun

    ReplyDelete
  27. Vedant kumarMay 19, 2020 at 12:17 PM

    Good morning ma'am I am Vedant Kumar

    ReplyDelete
  28. Janav jainMay 19, 2020 at 12:21 PM

    Good morning Ma’am
    JanavJain

    ReplyDelete
  29. Riddhesh S. LodhiMay 19, 2020 at 12:33 PM

    Good morning ma'am I am Riddhesh S. Lodhi of class 8th D

    ReplyDelete
  30. AnonymousMay 19, 2020 at 1:06 PM

    Good afternoon mam I am Isaac Visscher class 8-D

    ReplyDelete
  31. Kabir SuraliyaMay 19, 2020 at 1:15 PM

    G a mam utkrisht Suraliya 8d

    ReplyDelete
  32. UnknownMay 19, 2020 at 1:24 PM

    Good afternoon Ma'am I am Himalay Umarwal

    ReplyDelete
  33. UnknownMay 19, 2020 at 2:57 PM

    Good afternoon ma'am I am Amaan Richard

    ReplyDelete
  34. KartikMay 20, 2020 at 8:03 AM

    Good morning mam I am kartik of class 8-D

    ReplyDelete

Post a Comment

Popular posts from this blog

lesson -cell structure n function ( POST 2)

Image
Good morning boys! In the last class we learnt that- . Cell is the basic structural and functional unit of life. .Depending on the number of cells , organisms can be grouped as unicellular or multicellular. . The size of a cell is related to its functions. LEARNING OUT COMES- By the end of this class you will be able to- .name the three basic parts of a cell and state their functions .distinguish between a eukaryotic and prokaryotic cell Today we are going to learn about CELL STRUCTURE .a A typical cell consists of three basic parts : 1 .  CELL MEMBRANE OR PLASMA MEMBRANE - . It forms the outer boundary of the cell, gives shape and size  to the cell. . It only allows certain selected substances to enter or leave the cell ( it is semi-permeable ). . It separates the cells from one another  and also from the surrounding medium. NOTE - In PLANT CELLS and BACTERIA there is an outer wall surrounding the cell membrane ,it is called the CELL WALL. It gives pr...
Read more

lesson- cell structure and functions (post -5)

GOOD MORNING BOYS!  WE HAVE COMPLETED THE LESSON- CELL STRUCTURES AND FUNCTIONS. -  Complete all the 12 questions-answers shared with you on your class group in your notebook.   DO the following objective questions in your notebook  13.  NAME THE UNICELLULAR ORGANISMS WITH HELP OF THE CLUES GIVEN:  a). Has false feet called pseudopodia.   ..amoeba................... b). Has hair -like structures called cilia.    ..paramecium......................... c). Is spindle -shaped.  ..Euglena...................... d). It causes fermentation in foods containing carbohydrates.   ....yeast.................. e). Is a slipper-shape aquatic animal.   ..paramecium................... f). An  unicellular aquatic animal with a flagellum.  ...Euglena.................... g). An  unicellular aquatic plant with a flagella    ..Chlamydomonas............................................ 14....
Read more

force and pressure - post 4

Image
"Always Question, Always Wonder "  Dear Learners, Thank you for logging in! You're wonderful!😊   At the end of this class, you will be able to: 1. Distinguish between Balanced and Unbalanced forces. 2. State the effects caused by force. Happy Learning!😊 Balanced and unbalanced Forces: https://youtu.be/-Rjid6hQuww  ( Check this video on Balanced and Unbalanced Forces) Effects of Force: Force acting on a body may cause the following effects on it: 1. A force acting on a body can change its state of motion or rest. 2. A force can the direction of motion of a moving object. 3. A force can change the shape and size of an object. 4. a force can stop a moving object. 5. A force can change the speed of a moving object. https://youtu.be/QuFh8GYDf7A?t=17  (check this video on effects of force) Drill: 1.       1. .   What will be the net force acting on a body if 2 forces of 50 N each...
Read more