Viruses

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Introduction to viruses
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[@darkcoffeebean7299]

"I can't imagine a more appropriate topic to make a video on." Lol. 11 years later, watching this during the coronavirus pandemic, it's a very appropriate topic.

[@wreckim]

TU! btw, i roast my own coffee sometimes. Your screen name just reminded me to order some green beans. Take care, stay safe.

[@Robotomy101]

I love this guy man.

[@treyzaire5713]

I guess it's kinda off topic but do anyone know of a good place to stream new tv shows online ?

[@gunnerjonah7183]

@Trey Zaire lately I have been using flixzone. You can find it on google =)

[@terrencebarrett4343]

@Gunner Jonah Yup, have been using flixzone for since march myself :D

[@rayrivera1830]

planned to watch this during the swine flu. watching it during the corona lock down. took 11 years.

[@sujatapaul]

I am also watching during lockdown

[@BeezBumble]

Love your enthusiasm. Learned way more in 23mins and 17sec than the whole semester of uni. Thanks again for your videos!

[@feets186]

23:16 Actually

[@normadicn5700]

@@feets186 yeap

[@clp0btw459]

it is 23:16

[@BeezBumble]

@@clp0btw459 lol thanks for the correction. 7 years later...

[@nicoleatkins5276]

Its clear in all your videos that you love what you're talking about. The enthusiasm you have for teaching makes me excited to learn, and makes the information so much easier to retain!

[@TheSupertoneify]

This is what I missed when i was studying biology in school and eventually lost interest due to lack of visual elements to understand things better.. only textbooks with images never helped.. students today should really make use of this stuff to their advantage and learn better..

[@khanacademy]

Probably because they're fascinating :)

[@747Sean]

Khan Academy HEEEEEEEEELLLLLLLLLLLLLLLLLLLLLLLLLLLLOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO0OOOOOOOOOOOO0OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO

[@terribryan5457]

Would it kill the coronus virus Cov19

[@janeadelaidelennox7193]

Khan Academy yeah I’m switching from geology to biology specifically to go viral 😉🤦🏻‍♀️

[@nalin31081]

Yesss. Now I know there is nothing good or bad about them. They r just some genetic code (a set of instructions).

[@blagoevski336]

Hi

[@shinra9714]

I think it's wonderful how you always explain the material and I could feel how much you love biology. keep it up! this helps a lot.

[@lavenderrluna]

im here for my honors bio class- honestly this explained viruses very well, much better than what we went over in class!

[@wednesdaysonly]

"i take my genes personally, they define who i am" that made me giggle

[@sonicfangirl21tailsrocks99]

I agree!😊

[@danielacosta7717]

Or it made the virus giggle

[@thecrudelab3204]

yeah... i cant take it when someone wants to get in my genes, and change parts of it!

[@rambadadt]

lol same

[@tangoblueyt]

I was just away to comment that 😂😂

[@xenoepist]

Are you a college teacher? If not, you should be! Your explanations are awesome, a 10 minute video is more informative than a 2 hour lecture.

[@lrrhgdvrht9955]

This man is actually the best teacher I've ever had in social media his accent is understandable he explains every detail so clearly and every time I watch his videos every detail remains in my memory. So I just wanted to say you're terrific thank you keep going we learn a lot

[@rsammantar43]

I love the philosophical side of this. You managed to really creep me out and made me interested in the topic beyond having to study it. Thank you for all the hard work!

[@bekahchl1015]

I love how enthusiastic he is. Thanks to my biology professor for giving us the link to this video.

[@waje107]

i love how he gets a little philosophical in most vids xD keeps stuff interesting

[@ThathAndsomedevil]

This is incredible! You have a true talent for teaching and it is clearly evident that you are extraordinarily intelligent. I am a nursing student and it is killing me to be back learning basic biological cell functions and I literally sat here for 23:17 enraptured by your teaching! SO grateful for people like you, It just makes sense!

[@sabrinabasaria152]

I love the philosophical question you posed! Great videos. You did a great job explaining this. thank you

[@karigrandii]

Viruses are so facinating. And the theory that Viruses would have come from outer space is very interesting and makes a awesome plot for a movie.

[@Arghavan12]

I read the chapter but did understand as much as i do now after watching your video, really appreciate it

[@Tadziogb]

khanacademy...making studying easier since 2006.

[@Rigelcentauri58]

Congratulations!! You have a great capacity to transmit knowledge. Also your diction is very good, and for us, english-as-a-second-language people the way you speak is completely understandable. Gracias amigo.

[@johntindell9591]

Thank you very much for this enthusiastic and informative presentation.

[@giovanniparedes3875]

Awesome ! This is another world, a invisible world... That the most of the people don't have idea that this really exist, thanks for your good explanation.

[@Billboardmister36]

Could not think of a more appropiate video in these times. Thankful for this today from Khan Academy.

[@Pillcards]

This channel is really helpful! Thank you!

[@brucemurraywills]

Sal, these vids are fantastic I use them for all my exams. Just wondering where you get one of those black screens with the diff colours from? would love to use one just to practice my exam stuff on. Thanks

[@malv4935]

Thank you so much for the fantastic video!! It's a great way for us to understand about viruses. And hearty thanks to Salman Khan for starting up Khan Academy :D

[@xeztan]

Mindblowing.

[@willt178]

Amazing amazing explanation!

[@محمدبنخآلد-ف9ج]

Thank you for translating the words in Arabic

[@fleshcookie]

beautifully explained. I could listen to this guy talk all day

[@samanwehella9202]

Very clear! Thank you for sharing your knowledge with us!

[@MsVastu]

great videos by khanacademy. i learnt various thing through these videos.Thanks

[@Airguitarist9]

I got a sore throat and its creepy yet facinating to watch this, thanks :)

[@xxshikki]

I was assigned to report about viruses. I was assigned alone . Good thing i saw this! It helped much! :) thanks~~

[@monstermac77]

Fantastic, your videos will act as a valuable resource to me now. Thank You.

[@Kawishinox]

I absolutely MUST know what you're using to draw it like that!

[@ovi5986]

Did you ever find out 😭😭😭😭

[@brianberes]

Bravo! Excellent explanation of viruses. It helped me tremendously and you explained it better than my instructor.

[@alinanicolescu787]

truly fascinating, and yes, the philosophical question it poses about what life is and what we are is remarkable. Loved your vid, tyvm!

[@mattymin10]

khan academy will alwys be the goat these videos are so good for any level

[@realchee-z]

Loved your vid! Maybe you can cover some other disease causing agents such as prions, fungi, parasites etc.

[@VerdwaaldOdyssey]

Well, I just came to this video out of curiosity and now I feel like as if I have not only understood the video, but even learned about Viruses and how they work then I've ever understood before.

[@tenshi789]

very very helpful thank you so much!

[@caspereeko]

"i take my genes personally, they define who i am" But then you say: "Are viruses life?" but they also have genetic material. So is life is about metabolism or having genetic material or both. Or is the genetic material just a definition of life?.

[@miapenny4161]

I think viruses arent alive because despite having DNA they aren't able to carry out processes like replication without being inside of a cell.

[@cammorris55]

I love Khanacademy!

[@jasonsweet228]

great video thanks! I'm figuring all living organisms are similar in the way cells are produced when the organism is first formed.

[@victorvaldez6785]

Very informative. Thanks!

[@Orenotter]

"Interesting" said the disembodied voice of Narnax. "Our scientists and philosophers have long pondered the question of whether cells and the organisms they construct can truly be considered alive." John raised what he considered an eyebrow. "Ours have puzzled the same question about viruses." from john Anderson's conversation with an Alkari virus in "The Virus"

[@maggiegraham8820]

I love how he thinks!!! Thank you for this video!!

[@erliezerae]

love this video... it was simplified enough to connect the concepts... thank you very much

[@rogergr5019]

they were there before us and will be there when we are gone... Very helpful for my upcoming exam on moleculair genetics

[@onyinyeomaonyilimba-2948]

Watching this 14 years later with a cold as well 😢 There's no better topic to learn about with a cold 😂😂

[@kingdomkidz1536]

real

[@diplomat2623]

This video just made Microbiology class so much easier! Thanks :)

[@roberthata6732]

Ahhh? Just for Endo and Fagocytosis, Viruses aren't alive.

[@EnigmaHood]

Excellent video!

[@zachquatrano5474]

Very helpful...thank you!

[@roeydaz]

Very interesting and explained beautifully! Food for thought! Thanks for this.

[@QuackQuackquaaack]

I came to look up the difference between +ssRNA and -ssRNA viruses but your lecture was so interesting I ended up watching the whole thing haha

[@abdulm4700]

This is awesome and very, very factual. I would advise u to ALWAYS go on Khan Academy! A stupendous app, it is the best 👍

[@ndumisomaphanga5801]

Yes Videos from 2009 are really helpful!

[@tc5028]

Thanks for sharing your knowledge!

[@Acolyte7]

Amazing videos! Keep it up!

[@israeldjd]

when the cell surrounds the virus and you marked it as endocytosis, I thought that was phagocytosis? if you ever get a chance, can you clarify?? by the way, you do a super awesome, extraordinaire job at explaining and teaching, mega thanks to you!!

[@milenaaltorfer5988]

Great videos !!! Thank you ! :)

[@Palaflax]

lol pacman at 9:04 awesome video as always Sal, keep up the good work!

[@arash9483]

Thank you very much,it’s very useful.

[@joseocampo7166]

Wow this is mind-boggling... I learned a lot more interesting things here than 11 years of school!! Thanks Khan :)

[@roberthata6732]

Then you should go to his website.

[@larryal9]

Excellent video that clearly explains viruses

[@reemfaisal7017]

The best video I saw all over you tube

[@Minunmaani]

Excellent video for these times when some want to understand coronavirus!

[@robertvaughn7796]

In the military we have a saying "KISS: Keep It Simple, Stupid" Dumb down some of these video to make it a bit easier to understand. Not everyone, myself is one of them, can understand everything you are trying to explain.

[@jw7196]

You guys have to be able to respond exceedingly quickly, in your operational environments. It makes sense to keep things as simple as possible when you're downrange, but then you can do plenty the untrained can't before you even get there. Training you up took longer than it takes you to watch this video, in full. Think of this as part of your training program, and career virology as an operational environment. As difficult as you think this is, expect that things can get a lot harder when you're actually in the field. If you can't even get through basic, don't expect to excel in a professional environment.

[@Ravoliable]

could you make a video on immune and levels of defence in our body like three levels of defences..and information related to all that..........

[@noname28282]

Fascinating explanation, thanks you a lot, guy from past ❤😂

[@vietkrazygyrl]

thank you soo much, this was really really helpful!

[@supasonic10]

I left this video. I came back 1 day later and it saved my spot!

[@angelinghaven]

haha. this guy actually makes me laugh during his lectures. :)

[@WIlmylife]

I have a question:If viruses remain detached from living cells for long periods of time,what happens?Do they just remain there?

[@annegrace94]

Awesome video Khan!

[@haochencui4066]

Pure excellent explanations

[@KhadeejaMansour]

beneficial.. thanks!!

[@Raiyun166]

Khan, at this rate you'll really, really need to make a more organized layout for your site. O.O It's just hard to find stuff. Love the video, keep doing what you're doing.

[@thecrudelab3204]

amazing!!! thanks this helps me a lot!

[@bonnielee7134]

My sister taught me this when she was taking a microbiology class. She said that they were machines. What are they here for? What are their purpose? It makes no sense. They lay dormant doing nothing until they come into contact with something to replicate themselves. Then what happens to them later? Where is the Spanish flu? Is it still hanging around? I heard that you could remove a rainforest section that hasn’t been bothered for thousands of years and release one of these dormant machinery out into the population to do its thing. Now I’m hearing that a virus infects people and get weaker and weaker as they go through people. I also hear that they mutate. All of that makes you wonder why? What is its purpose?

[@qwert12345asdfgzxcvb]

That was beautiful. Thank you!

[@TheUnchainedMind]

Amazing video, very interesting. Thank you so much, I will probably be watching a couple of these every day on a multitude of subjects :)

[@QadirPopal]

thank you very much... and please keep it up.

[@mass13982]

Fascinating explanation

[@krupalparmarbiology]

Amazing explaination

[@XHUMBITO1]

thanx a lot.

[@colleenoconnor4099]

If viruses aren’t alive how do they appear in the first place? Are they dormant cells already lying around that eventually we just happen to pick up and then the virus is able to carry out a cycle of infection and mutation, or does the virus cell come from somewhere like how is the protein layer formed around it if it’s not alive? Where is the genetic material originating from? So many questions

[@conraddevigne]

Im the infinite telomerase. I am not an anti existence. I am a perfect chain. Mitochondrial water is the way too fight it. Super structure your water best you can

[@conraddevigne]

I also write my own genetic coding utilizing my bliss moments and my toroidal waveform patterns. this is important for becoming evolved. if you don't know what im talking? Look. Look.... you need to look too have a real idea if wanting more in life then you got at this time. especially when you have man made lab created viral infections roaming thee world. will i get sick? Not bloody likely. Never again. Not when i take all steps neccessary to EAT the virus instead of getting eaten BY it.

[@yochabelandradesanto]

Thank you Sal ... fantastic xxx

[@biancaryder3878]

haha, much agreed, my teacher has not taught me a thing yet. I have learned everything via youtube!, khan is my main go to guy tho,

[@user-nn5rp7jw2h]

Hi, so I have question about viruses. Do viruses need energy for certain things, if yes where do they get this energy from and why can't they generate their own energy? Senna

[@Toennesen]

Hello everyone, I have a question about PCR detection of a virus of other mikroorganism. I have been searching for the answer i both my books and on the web but not been able to find at clear answer. It's probably fairly easy to answer, i just what to be completely sure so i wont get a question wrong for the exam this summer. I know how the PCR tecnique works and obviously you should use reverse-transcriptase PCR (RT-PCR) for all the RNA virusses. My question goes: You want to detect a virus and found out which virus infection a patient have. You take a sample from where you assume the virus will be, maybe feces or saliva. Then you run your PCR or RT-PCR, but don't you have to run multiple PCR's with different samples because you don't know which virus it is? furthermore you must have specific primers for the virusses you suspect the patient is infected with. Am i totally wrong? the after you've run PCR, then what do you do? you have an amplified virus genome, but don't you need to do some sequencing to identify which exact virus the patient has? In other words how does the identification of a virus with PCR work?

[@alaschgari]

AWESOME!

[@ABeardedDad]

@rktguy No it's not just paint, paint is nothing like this. If you watch his CBS video you can see the pad that he uses with I imagine some sort of wonderful software program.

[@kackieedgcumbe8477]

Thank you so much

[@janeadelaidelennox7193]

Doctor: we can fight this. Your HIV doesn’t define you Patient: technically tho....?

[@ΝικήταςΜακοπουλος]

Exceedingly practical in this period of covid-19.

[@chanceroberts7494]

The endocytosis is right but simplified. When a microorganism devours a particle like a virus it’s more called a “pinocytosis.” But bigger components like nutrition from organic compounds is called phagocytosis.

[@Mehidiii]

tyvm