Photosynthesis: Light Reactions 1
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- Опубликовано: 2 окт 2024
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Details on the light-dependent reactions of photosynthesis
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Remember the days when photosynthesis was just a long word for plants making food with sunlight?
I'm probably not the only one browsing comments while the video is playing... We should stay focused xD
LOL ah yes
Ya around the time we thought we thought we would become doctors when we grew up 😭
Good old times...
issues of reductionism
Goodness this guy knows everything doesn't he
he really does
That's for sure
*pays 50k for an education worse than a youtube channel*
Miles Veney what topics does he teach that is degree level?
@@hazmo4423 this?
Abhi This isn’t undergrad-level, maybe highschool lvl at most
jojibot As an undergrade I can prove you wrong
@@jojibot9193 This topic is covered to the same extend in every intro to bio course (1st year)
Oxidation Is Losing, Reduction Is Gaining. OIL RIG
LEO GER
LEO the lion says GER
I thought this was an awesome way to remember
Reduction is gaining an electron or gaining a minus. Since a minus is less, it is being reduced
i really appreciate the precise language Khan uses elucidating complex subjects!
Yeah he elucidates well
I spent 3 days on photosynthesis in class, reading the textbook and having lectures, and finally this makes sense. Thanks so much!
Do you still remember it?
Gosh, I totally get it now! Mr. Khan, something about YOUR way of explaining as absolutely enthralling and mesmerizing. You are meant to be a teacher!
You are an absolute life saver. Whenever I get confused by the AP bio text book, I come to you. Thank you so much!!!
Gosh i would love to be a teacher like him
A concept so tricky , made crystal clear in 20 mins. Perfect :)
So did you become a teacher?
I have a test on this in an hour. I have learned more from this than I have studying for 9 hours last night
The hypothesis is called the endosymbiont hypothesis if anyone wanted to look it up. It's super interesting.
+Ashrin Jan was looking for this thank you!
6:00 Sal almost got into some deep philosophical stuff here
We will involve into X-men, obviously.
Holy crap you are like a bazillion times better than my teacher. My teacher just reads off a powerpoint. Thank you!
Thank you so much. I have a biology test today, so I kept watching your photosynthesis videos over and over.
I've been using your channel for A's since 2nd grade, keep up the good work, you're a life saver
hey dude why do you know almost of everything
+adriann caballes Sal has degrees from MIT and Harvard. He's just that smart.
You are an awesome teacher Sal! I am sometimes impressed of how well you know each topic in each of your videos. Another thing that makes you a great teacher is that you always maintain the attention of the person watching the video, and that you know how to emphasize things that are important. Seriously, you are a person to admire, greetings from Guatemala!
what ,that is SO COMPLICATED , this man knows everything
I am able to workout and understand these concepts (by listening to them on my phone) all at the same time - thank you Khan
Someone get this man a Nobel's price or something
The best quality!!! Even I haven't learned anything about photosynthesis I still understand this. Thanks Mr Khan
I'm amazed of how much knowledge he has and how generous he is to share it with us. Bless him!
You are the best!I just spent my whole day studying a book about photosynthesis and I finally understood the whole process watching your videos!!thanksss
This guy is amazing, so knowledgable and easy to follow! Thimbs up all the way!
i learned more than i have the whole year with this video! thank you so much! defiantly worth watching!
SOMEBODY GIVE THIS MAN A MEDAL
THANK YOUU!!
I really undestrood you better than the biology classes of 1 semester!!
I think you're right with that, since choloroplast does essentially create sugar (via Photosynthesis) and mitochondria also makes energy too!! Mitochondria and energy is to do with Respiration though, but the plant has them both, but they're both different organelles which work on different processes!!
Sorry if i made you more confused, but what you said does seem right :D
This is the coolest science I've ever studied, it's really like an engine. Makes me think of some Victorian industrial engine.
im literally thankful for this guy...like..icould hug him!
thank you for taking the time to make these videos. they really do help a lot.
You sir, just saved my biology final. Also, your enthousiasm is incredible!
I remember watching your videos in high school to pass my biology tests. Now I'm here, after graduating college and working in biotech, still learning. Thank you!
you, sir, explain everything better than all my university teachers put together! thank you :')
I think you've really set a precedent for teachers. They should be able to teach it in this way if they course touches on this.
Other than that, I love you. hahaha.
Man! You make a heck of a teacher!!
I'm sad that I descovered this a month before my university entrance exam, the way you teach is amazing that I would've given you my School fee🙏🙏🙏
Mind blowing explanation i never found such highly expertise teacher..
Thnkx a lot sir..
Now all doubts had been cleared..
Only one word for you sir...
Thank you very much 🙏🙏
God bless you 🙏🙏
You saved my grade. Really, thank you SO much.
it took my teacher 2 weeks to teach what this guy taught in 20 mins...
actually 20 mins and 15 seconds
FadilNjr actually 20 minutes and 16 seconds
John Nelson the weirdest thing is that no one asked
I think of it as the electron 'dragging' the proton(H) as that electron moves accross different molecules of the gradient - because they're attracted to one another. Or a stream of electrons dragging a load of protons/H. Don't know if this is correct but it's a way of visualising it for me personally.
GOD BLESS YOU !! ♥ I UNDERSTOOD EVERYTHING :')
Mann I wish u were my teacher.. Although I don't think I was supposed to go that in depth thanks!!!!
And my exam is just 5 hours away, including the time required to change into uniform, travel to school, and ofcourse- the boring school assembly before the exam! And yeah, I have to study whole photosynthesis!!!!
Sir, consider yourself a life and grade-saver.
Perfect help for Biology SAT subject test. Thank you!
I think the main reason why we concentrate more and in turn learn more with these tutorials is that obviously they're one on one ... no other students which introduce new questions ... no other distractions ... such as room lighting ... people moving in class and outside of class, but the main reason is due to us reading the teachers facial expressions ... reading facial expressions, I think, by personal experience, deviates our thinking a LOT.
I love your videos. You do not talk to fast, you repeat yourself, and you use different colors. It helps me sooooo much! Thank you
i love your videos! helps me soo much. thank you!
I need to give thanks to your videos for helping me ace my exams !!T_T!!
immense wisdom incoming (im sorry khan academy if this sinks your youtube channel):
THE MITOCHONDRIA IS THE POWERHOUSE OF THE CELL
thankyou for your applause, its nothin really
YOU ARE AWESOME. thanks so much, I learned a ton
Thanks for the good explanations Khan Academy!..made my teachings easier
And you have good hand writing if your writing that with a mouse...
Yeah Seung he wrote using an electronic black board
Dude thank you so much! You are fabulous teacher!
you make biology cool.
My professor makes this stuff seem so much more complicated than it actually is.
For real 🤦
You are amazing! You make study fun :)
MINDBLOWN. My best guess of what our next evolutionary step is that we're all gonna transform into that huge robot thing that the power rangers do :D
Mr.Khan for president!
I love your channel thanks for making learning easy!🤗
omg who knew photosynthesis could get soooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo complex???
Raise up your hand.
lol
i knwo right, i am thinking right now how much harder can IB get
(o_o)/
thought you were going to say soooooooooooooooooooooooooooooooooo boring
sir i learnt in my text book that in cyclic photophosphorylation electron strts from PSI and ends in
PSI only and does not go to PSII and what you said is it goes to PSII
15:20
lol, I hate it when I do that stutter when I'm explaining my projects.
Great videos!
are you left handed? and great vid helped me a lot for Ap bio
Thanks so much !! you are the teacher ,,,
@2007rina
Grana is the plural of granum. They're the same thing! :)
So where do the H+ ions from the water molecule go? H2O provides replacement electrons for the chlorophyll, but that leaves two H+ ions. Where do those go? Do they go to the chlorophyll molecule as well?
midterms tommarow, god bless your soul
I love your videos because I'm a visual person. Thank you so much for taking the time to share your knowledge =) Amazing that your videos been up this long and has accumulated no dislikes =) Keep it up!
Light Dependent Reaction* not Light Dependendent Reaction lol
Photophosphorylation, you forgot the -phos- :)
Other than that this stuff is just fascinating!!
Thank you for this
A great, helpful video.
Seriously, thank you. You made it seem a lot easier.
The whole board is so messy, yet it seems soooo organized! Thanks for saving my life!!
Thanks for your help
am wowed it's educational
I know I am so late on the discussion, but if all this were an accident, where does our value come from? In other words, if we are just an product of atoms dancing around, is human value just a social imagination?
I hardly can bear with the contradiction of our generation calling out for individual rights and value, where we simultaneously seem to be disgusted with the idea of a "life created with an intention."
Objectively speaking, evolution seems as nothing more than a speculation of overblown facts that have minimal similarity. (There's a DNA in a mitochondria! It must be an ancestor!) Our society calls out religion with "prove it with scientific evidence" but do you guys not realize there are more things that we do not know than we do know? Why are we fooling ourselves into believing that we know everything?
Science will explain what causes a phenomena, but never answer why it does in the first place. I hope you do not hold on so dearly as if it will rescue us from uncertainty of our existence.
As much as regarding religion and creationists as myths, the theory of evolution remains just as a myth as well. Let's not live and bring each other down like we have answers for everything.
I see so much beauty in this whole process. Even when we look at cellular respiration, breathing is not simple as we do on daily bases, huh? I just want to be amazed without self-disintegrating arguments that will die off like everything does under this sun.
If you insist on denying intellectual design, then please be consistent with your logic and deny your "not-yet-to-be-scientifically-proven-completely-but-it's-science" theory of evolution.
Thank you for reading. I believe that you really matter and deserve to be loved unconditionally, because you do exist in this tiny little dot in the unending spectrum of time.
My exam is in 8 hours, you saved my life
12:30 I think it’s spelled photophosphorylation
Im pretty sure that electrons aren't the only things excited at 17:00 . I joke, this is so goood. But they are long.
sir! you are the best. :)
15:20 Sal turns into the excited electron in PS2.
I don't see how anyone could dislike this. . . ? What did he do wrong?
this guy iz just great
he has transformed the lives of so many peopl
At 14:34 i think he referred to PSII as PSI. Someone correct me if I'm wrong.
thats right
youre right thanks
true that bruh
wow nice video, what program is he using for the drawings?
Thank you sosososooo much
so eukaryotes have chloroplasts where photosynthesis occur, but how bout prokaryotes?
Them electrons got me excited 😏💦
Grana refers to all the stacks together, not an individual stack. An individual stack is a granum.
Thanks alot!
Thank you sooooooo much 🙌🙌🙌 why would I waste an hour trying to understand a convoluted chapter when I could come here for you to concisely sum it up in 20 minutes. I CAN NOT STRESS ENOUGH HOW MUCH YOU SAVED MY BIO GRADE!!!
Just mitochondrias and cloroplasts were individual cells, acordding to Lynn Margulis' hipotesys: the others organels were result of in/evagination and have no DNA in their structure.
Sal made a mistake early in the video when he said one stack of membrane bound sacs(thylakoids) are grana. MANY stacks of thylakoid are called grana. ONE stack, is only called a granum.
may i ask what do you use on writing those texts? do you do it on a computer or do you have a high technology pen or projector? (sorry for the bad english)
finally!! I got it!!! thank you!!
it's photophosphorylation, 13:04
Great video. 9:17 "Light Dependen-dent Reaction" haha
God bless this man. Sal has saved me in so many classes
I've checked it...they are made with pen tablet. I guessed that he uses something like that, but i was not sure