Bacterial characteristics - Gram staining | Cells | MCAT | Khan Academy

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[mmaking]

OH MY GOD. Lady, you are truly a gift to us Microbiology students around the world. WHERE CAN I FIND MORE OF YOUR LECTURES? I WANT THEM.

[crystalleitch]

I sat in lab for 4 hours and l learned more in this 7.24 min clip. Thnak you

[sophiaherleyy]

...I’m half way thru my semester and you just explained everything in a 7 minute video that I’ve been trying to understand the past 2 months. My professor SUCKS! Tysm

[colekena]

OMG This is the best video I have seen thus far on Gram Positive and Gram Negative staining. Thank you so much for thoroughly explaining this process.

[trinapooh]

My goodness lady! Before watching this video, I was completely oblivious to Gram-Staining, and how it works. I'm so glad God used you to put this video up, because he KNEW I would have microbiology spring 2016

[zoeyzenger]

I want to point out that while yes, the crystal violet does eventually wash off from the Gram negative bacteria, it's the iodine that encapsulates the Gram positive first, so they don't get decolorized by the alcohol. That's when the last stain (the Safranin) would stain the Gram negatives. I understand this is an educational video, and I know some of it may have been a little rushed for the sake of getting the point across, but I believe that understanding the process of staining and how it actually works is much more beneficial to viewers than a simple, "it stays purple because that's just what Gram positives do."

[VibeMD]

Thanks a ton. Can you please make a video for the functioning of the ear and also for muscle fibers with all the muscle fiber's bands and the "gliding" method by which a muscle moves

[reyianjohngayomali]

Thankyouuu, I understand it really well..

[pancakez]

Great video. Te only grips I had was the "wash it off" part. As we know. You stain the bacteria with ultra violet stain, keep the stain on for 30 seconds, rinse with distilled H2O, gram stain for 60 seconds, rinse with H2O, tilt glass slide at 45 degree angle, then apply ethanol to the stain slowly(one drop at a time) then rinse with H2O, Safran stain for 60-120 seconds, rinse with H2O, then blot dry, then observe over microscope.

The application of ethanol is very important in my opinion.

But I digress because you can't think of all the details, such as I can't either.

[kosgengster]

Perfect! Thank you! Succint and the illustrations helped a lot.

[mcawesomeytyo]

Oh thank you, you are a gift from god. Your video saved my career

[ruisucepi]

THANK I'm like WTH ! Why is it so easy to understand here compare in class lol! thank you, again for saving me once again. I went back to school after finishing LPN (I used Khan to study, too) and passing nclex and

[thoufeeqahamed]

Well explained, thank you soo much! :)

[nevaehchee]

thank you, you cleared a couple things I never quite grasped.

[hannahdivic]

Every time I see thumbs down for these videos I get really concerned. Idk if they got something wrong or if people just don't like it

[louisiannesaldagna]

i havent done my online biology in a month and this still makes sense to me. this is amazing

[prettyxpetite]

wow, this was great! but i have to keep watching it over and over.

[kvcrao]

MADEM - BEAUTIFUL EXPLANATION - K V C RAO

[hopejensen]

I completely understood this!!! Thank you times!!!

[ramroom]

Thank you to whoever contributed in making this video