In short Acid (yellow ) produced by glu metabolism is able to mask redness of peptones only partially But Acid (yellow ) produced by lactose metabolism is able to mask redness of peptones completely
Thank you for your well explanation. I would like to ask you that when Bacteria only fermented Glucose(Moderate acid production), and not Lactose (tons of acid production), why it turns Yellow only in the butt and not the slant. As you know, the whole media contains the same ingredients (peptones, glucose, and lactose), so everywhere in the tube is the same. What happened to the slant, why it does not turn Yellow as at the bottom part of the tube. Is there any reactions or metabolism that stop the Slant from being Yellow as the butt?
hi! hopefully someone can help me! so tubes that are ALL yellow only ferment lactose? and tubes with red & yellow is safe to say that can ferment lactose AND glucose? and tube with ALL red does not ferment lactose OR glucose?
is this test is specific for gram negative bacteria only ??? I mean is it used to differentiate between gram negative species only ??? or also gram positive species ??
To avoid confusion, the slant uses lactose/sucrose for metabolism and the butt uses glucose for metabolism
does it say something about whether bacteria is facultatively anaerobic/aerobic??
Thank you!
Thank you so much for explaining so clearly, and for teaching me what my Micro professor can't!
Thank you for explaining this very confusing experiment. Makes perfect sense now. God bless you!
You're very welcome!
I can't tell how much appreciate I am. thank you so much
Thanks so much, I was so confused. So well explanatory. :)
Glad this helped you!
Yes, I remember using this agar for identification of my bacterial isolates from rhizosphere soil of red pepper, Capsicum frutescense.
You’ve been helping me out lately and am so thankful for you ❤
You made it ridiculously easy
You are definitely on my top ten most useful youtube channels. Just, Thank you so much :)
Now left thumb from same hand has a long sword in the middle from the bird table situation they can keep the skin scales 😂
Ur such a good explainer omg…..
God bless you for making it soo much easier for me. 🙏
TY! very well explained. I love you so much
Excellent Sir
thank you so much
No problem!
Thank you really helped me to understand the concepts.....
Glad this video helped!
@@CatalystUniversity Hello ,
Can you answer the above question about " why that impossible to see A/K ?"
Give Kevin a raise!
Thank you so much! You've made it easier for me to understand 🥺
thank you sooooo much ,you're incredible
Thank you this helped a lot
Thank you, Mohit.
This channel is going to save my lab grade. My instructor doesn't explain anything.
The best explaination !! Thank you
You aced this confusing test. Thanks a lot!
U Explained so easy
Thanks A lot Doc 🙏
Thank you!!
Great explanation, thank you!
You're very welcome!
You're a genius man !!
You are the best, thank you!
Thx!!! Excellent!!!!
In short
Acid (yellow ) produced by glu metabolism is able to mask redness of peptones only partially
But
Acid (yellow ) produced by lactose metabolism is able to mask redness of peptones completely
Since peptide metabolism is always present 🎁
Thank u so much, i don’t have time for a 20 minute long video ❤️
Thanks so much for making this video I was so confused before this lol
Thank so much. I came so confused and left a pro.
Thank you so much for your help, this was so clear to understand. Thanks
Well understood
Thanks 🙏 ♥️
Good work ,I don't know why it looks now super easy😂😂😂
so what is being fermented on the 5th tube? Why is it A/K unlike the K/A that ferments only glucose??
It is A/K and not K/A because of lactose or sucrose metabolism on the slant and a moderate glucose metabolism on the butt.
Thank you so much !!!!
Thank you very much !!!!!
You didn't talk about the specific organisms involved
Thank you!!!!
Thankkkssss
No problem, April.
Thank you! I was wondering about Salmonella why it is red slope although it ferments glucose ( theoretically forming acid which means yellow color) !
This is too simplistic
Love thisssss
Thank you for your well explanation. I would like to ask you that when Bacteria only fermented Glucose(Moderate acid production), and not Lactose (tons of acid production), why it turns Yellow only in the butt and not the slant. As you know, the whole media contains the same ingredients (peptones, glucose, and lactose), so everywhere in the tube is the same. What happened to the slant, why it does not turn Yellow as at the bottom part of the tube. Is there any reactions or metabolism that stop the Slant from being Yellow as the butt?
Same doubt
I'm asking about the same thing 😕
@@bxwn8931 hello🙋♂️,you are from which country ?😁
@@ajitsharma7666 Hi , from Jordan 🙂
@@bxwn8931 best wishes and greetings from India🌷
Thanks
No problem!
You did not mention sucrose?
What happened to Sucrose?
hi! hopefully someone can help me! so tubes that are ALL yellow only ferment lactose? and tubes with red & yellow is safe to say that can ferment lactose AND glucose? and tube with ALL red does not ferment lactose OR glucose?
Perfect
Sucrose has any role ??,Nice explanation
Sucrose and lactose have the same pathway.
is this test is specific for gram negative bacteria only ??? I mean is it used to differentiate between gram negative species only ??? or also gram positive species ??
Thank you next time include even organisms that can be I dentfied
What about A/k?
Dude, love the vid! But drop the "Alk" and join the rest of us here on earth.
Other than that, AMAZING!
❤❤❤
can i ask what actually is the gas produced?
it is either carbon dioxide or hydrogen
❤️🔥❤️🔥❤️🔥❤️🩹
❤️❤️❤️