MacConkey Agar 

awesome explaination. Thank you

very clear explanation, thanks. Except staph aureus is a common gram-positive organism and routinely grows on MacConkey agar

LB-Amp plate has both blue and white colonies. This is good because you are using a "blue/white" selection. What does this mean and which colonies do you want to pick to grow cultures of?

Thank you for this video! I feel like I will do great on my exam because of your thorough explanation on MacConkey Agar.

You did a great job with this video and it is good for a basic level. However, please keep in mind fastidious Gram-negative organisms will also not grow on MAC. Therefore no growth on MAC does not automatically mean Gram-positive. An example of some Gram-negative organisms that do not grow on MAC is Neisseria gonorrhoeae and Haemophilus influenzae.

Very well explained and presented. Easy to understand. Reinforced the concepts with definitions and images. Thanks!

I love how much you repeated yourself in this video. Not being sarcastic, it is my favorite when insructors repeat themselves a few times, it really helps drive home the point and I don't have to rewind or rewatch the video a bunch of times. Thank you, great video.

So helpful. Thank you ! Keep up the great work of helping students pass micro!

great videos. Thanks. Would you tell me please why we are talking about Fermentation "and not respiration" when we describe the Macconkey utilisation of lactose ? especially because of its occuring in an aerobic enviroment which is the surface of the agar. Thanks so much in advance for your reply

reviving my knowledges to spread towards my students and this video just made me clear.thank you so much

Very gooood👌🏿👌🏿😁😁

Lab practical tomorrow. I feel confident now

Thank you, excellent explanation, there is Chocolate Agar?

EMB and MacConkey are selective and differential for coliforms, so we can use both of them for the same purpose right?

For classifcation, for the (-) lactose, the bacteria is gram negative, but it's still (+) for growth right?

You are amazing, you have helped me alot the best part that I enjoyed when I learned the reason behind the changing of color to pink ♥️ thank you for sharing this information.

Well done

S aureus can grow on mac conkey nd its GRAM POSITIVE

I am confused about the uncultured plate color. In my lab it was pinkish. I want to know is it pink or that tan yellow color?

I have a question that i have problem with, "why would you see only the outer edge of colonies turning red on McConkey Agar? a) the plate has bad neutral red, b) the plate was not incubated for long enough, c) the bacteria have capsules, d) the bacteria don not ferment lactose. I cant find the answer but I think it is the bacteria have capsules

Simple and sooooo clear.. god bless you really, thank you teacher 🌷🌷🌷

Doesn't MacC agar inhibit G- coccus, but not G- rods?

thanks a lot..its so helpful✨but what is the actual color of macConkey agar ?

❤❤❤

Thank you🌹

thank you!

How can we distinguish enteric pathogens from normal flora on the MacConkey agar?

thanks alotof

can we grow neisseria lactamica in a maccokney agar or any neisseria?

Well done

Thank you this helped greatly!

Its helpful sir, thank you

Could you please upload the media effecacy test/ Growth promotion test procedure.

This video is 100% interesting, educative and quite oriented and helpful. Thanks to you

Very nice work sir❤️❤️❤️

Thank you so much

Well explained 🥰

Explanation is truly informative, thank you

Helpfully.thanks

Thank you, very good explanation!!!

Thank you

It was too helpful 💙💙

Thanks helped alot 👍🏻

Tanks

So helpful!!

Perfect 👌. Thanks

Thank you!

Very, very helpful!

Very useful, but too long. You repeat yourself too much and all of this could have been covered in less than 2 minutes. If we need repeat, video can be replayed.

Extremely helpful. Thanks

Maybe don´t say the same thing five times in a row next video.