Catalase Test
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- Опубликовано: 27 окт 2018
- In this video, Biology Professor (Twitter: @DrWhitneyHolden) will cover the Catalase test procedure and discuss the background information to understand how this test works. Specifically, this diagnostic test indicates the presence of catalase in a bacterial culture. Catalase is an enzyme that catalyses the production of water and oxygen gas from hydrogen peroxide. It is used to differentiate catalase-positive bacteria, like staphylococci, from catalase-negative bacteria like streptococci.
Tomorrow I have an exam, I thank you from the heart, may God protect you
Shes the best Professor on RUclips
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Thanks!
And if you can’t find a video on a certain topic, let me know and I can add it to my list for future videos.
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Vielen Dank für die klare Erklärung.
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Many thanks
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So can it be successful against gray hairs ? Great explanation by the way !
So sweet you are💐. I like the way you presenting
Just wondering: as you stated, Catalase catalyses the production of water and oxygen gas from hydrogen peroxide. And since researchers have recently discovered that the main reason hair turns gray is hydrogen peroxide's "bleaching" effect on the follicle, some have theorized that taking a Catalase supplement might reduce enough hydrogen peroxide to stop its effect of causing hair to gray. Any thoughts on this, or experiments you've done (or know of) regarding this? I mainly wonder if an oral Catalase supplement can even make it into the bloodstream. Many thanks. My wife and I love your channel!
I have also heard of the possibility of catalase being used in this way, but I don't know of any experiments to assess it. My hair is still nice and brown (I've actually never died it or even had highlights put in), but it would be cool to have an answer before I get old enough to go gray. ;) Thanks for watching!
@@BiologyProfessor you are funny :)
Are you able to leave an equipment list?
Thanks a lot for your lectures. All are wonderful. Please can you do videos on voges proskeur, motility bacteria test and XLD agar? Please!!!
I’ve added to my list. Thanks!
Better late than never… here’s my new video about XLD agar: ruclips.net/video/rTe28Ei3oAM/видео.html
How can I determine if the bubbles is produced by catalase in bacteria or catalase in red blood cells?
You should first grow the bacteria on media without red blood cells.
Hey!!!!!
I want to raise microbes with you! 😹
What is the recommended catalase dosage?
In this test, the catalase is made by the bacteria cells. If you are asking about consuming a supplement, I cannot recommend a dosage.
@@BiologyProfessor Thanks for this informative video, Is consuming Catalase in general considered safe?
When she pulls the top off the marker and moves her hair out of the way, that's when I know its game time!
Hahaha, that’s right! :)
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You know, as a student you come up with crazy things to help you remember answers for the test. For catalase results: we simply said that a positive CAT-alase looks like cat-spit. Gross, sure. But it stuck.
LOL - love it!
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oo i didnt get you i wish you could help me
Love how she says COK THIS GIRL IS BEAUTY
Oh teacher How did you loose so much weight
Ketogenic diet plus fasting
@@BiologyProfessor great you look great then and now 👍👍
가시나 예쁘노
Will tell even my kids not to take medical school classes
I din't find this helpful