That’s really cool professor. I am sitting for most toughest competitive exams in India and your videos are making my exam preparation easier. Thank you for your effort 👍🏻
Dave this has nothing to do with this video. I just watched your discussion with Jesse Lee Peterson and had a good laugh. Hyperbole vs logic at its finest. Thanks for your awesome channel, whether educational or educational I rest my case
I don't understand how to calculate this problem. Consider the fixation of carbon dioxide leading to the production of an amylose chain 30 glucose sub units long. Calculate the following: (a) the number of CO2 molecules fixed; (b) the number of ATP molecules consumed; (c) the number of NADPH molecules oxidized.?
that process is called Carbon fixation, or in other words transforming carbon dioxide into other forms to store and to be used later, like into Malate or malic acid. it is then transformed back into co2 and used in the photosynthesis. just like storing sugar into fatty acid, and then transformed back into sugar when needed.
Wait... in CAM plants, didn't you just say it open the stomata to keep H2O? And then you say during the day, it closes the stomata to keep H2O. Can you bring clarification?
Not going to lie. I saw the thumbnail and I thought it was a meme trying to show how one should drive in a roundabout... And now I feel like it should be
not really, they need light to do photosynthesis. but they dont get dehydrated because they evolve to keep stomata close during the day, and opens during the night.
@sunergi ... woosh. I mean, if they only open their stomata at night, would they suffocate and never have co2 to breath if you just kept them under a grow light 24/7. Is it darkness itself that triggers the stomata opening, and how strict are they about that responce. In nature there would be no situation that would prepare them for 24/7 light. Cacti don't live above the arctic circle.
CAM planta do photosynthesis during daytime, since they still need Sunlight to do the process. and oxygen is a byproduct of photosynthesis so oxygen is also released during the daytime by plants. while CO2 is always around too, 24/7
for cactus, its entire body is the would-be leaf that does photosynthesis. while the Thorns or spikes evolved into protective features instead, if they remain as leaves then they would lose water
@@ProfessorDaveExplains that's great! I'm waiting :) thank you, for the response and the videos, great explanations! I found them recently, and they are helping me understand plants better. I have a dream to some day start building agroforests, and these biology foundations I find very important!
How about a series on the history of STEM? from all the way back to the egyptians bolstering the development of the geometry field to modern mathematicians like Terence Tao?
P. Dave. I just spent 2 days tying to teach someone what the “scientific method” is. They were convinced that the only “real” science was a strict adherence to “observation”-“hypothesis”-“experiment”... and that experiment was only “manipulating” a single IV and seeing how a single “DV” was changed. I was sadly ineffective in my discussion. Maybe a couple of videos from you in this topic could be helpful?
I am continually amazed by the breadth of subject Prof Dave does videos on. Rubisco is such an interesting enzyme. It's just about the most common enzyme you'll find in any plant cell, is incredibly slow by enzyme standards, and doesn't much care what direction it catalyses. Yet it's one of the most ancient and highly conserved enzymes in existence. What's been driving that 'lack' of evolution for billions of years when one would expect plants would really 'like' something better? My best guess is it initially evolved to 'soak up' O2 when all life 'regarded' oxygen as a poison. For such a purpose you want: -a lot of it to 'catch' every oxygen molecule as soon as possible -so it didn't need to be efficient -it did need to work so once functional there would be huge evolutionary pressure not to 'experiment'. Some life discovered photosynthesis and Rubisco turned out to be useful for that as it would run backwards. Great, but now you need even more of it because 'whoops, there's even more of that nasty oxygen about!' So the pressure not to mess with a functional solution gets even bigger. Finally you get some cells discovering the trick of aerobic respiration and so a poison becomes useful, when its not being poisonous. Before you know it you've got eukaryotes; the aerobic heterotrophs don't need Rubisco any more and ditch it, but the autotrophs are stuck with it warts and all. It's a nice story, I'm afraid I'm not knowledgeable enough on the subject to know if it might be true.
Thankyou professor...i am from india preparing for neet medical exam and looking for a vedio which will help me.....and here is the vedio of you welcoming me all the way along....thanks from ma heart❤️
Hello professor dave I am from Somalia And I have been watching you two years ago and i have benefited a lot from you thank you
for*
You have Wi-Fi there?!
@@hassenfuad7258 wrong. It should go “I have been watching you” -> “I began watching you” because she said “two years *ago*”
Nice
@@arielthemermaid3576 insert meme "why are you the way that you are?"
professor dave always comes in clutch the night before an exam. thank you!!
Hello i am from Ethiopia 🇪🇹
Me to
Thumbs up if you are watching this before writing Biology test.
Thank you Professor Dave, this was very helpful for my upcoming ecology exam!
Tnx Dave one day I will pay your gratitude
Thanks 💖💖
That’s really cool professor. I am sitting for most toughest competitive exams in India and your videos are making my exam preparation easier. Thank you for your effort 👍🏻
Which exam? NEET?
Neet?
I’m studying for Neet
This was amazing. Thank you!
Thank you Professor Dave! Just the video I needed! As always, very well done!
Love from south India
I am form india and subscribe you.
Thanku so much professor Dave
My first interaction with this topic was a 2nd year university assignment that asked to explain Kranz anatomy.
I've learnt alot from dave over the years 👍
Thank you professor Dave this is very helpful for my lecturer biology test
Do you consider this high school or university level biology?
I think freshman undergrad.
Loved ❤️ from Islamic Republic of Pakistan 🇵🇰 may Almighty Allah bless you
I am from India 😊
Dave this has nothing to do with this video. I just watched your discussion with Jesse Lee Peterson and had a good laugh. Hyperbole vs logic at its finest.
Thanks for your awesome channel, whether educational or educational
I rest my case
I don't understand how to calculate this problem.
Consider the fixation of carbon dioxide leading to the production of an amylose chain 30 glucose sub units long. Calculate the following: (a) the number of CO2 molecules fixed; (b) the number of ATP molecules consumed; (c) the number of NADPH molecules oxidized.?
ruclips.net/video/TF_c_9GyObI/видео.htmlsi=k-jA453sMRfsDI4D
No shit guys, he knows alot about the science stuff (unlike those flat earthers out there)
The resulting 4 carbon compound? How is malate formed in the mesophyll cells from OAA??
that process is called Carbon fixation, or in other words transforming carbon dioxide into other forms to store and to be used later, like into Malate or malic acid.
it is then transformed back into co2 and used in the photosynthesis. just like storing sugar into fatty acid, and then transformed back into sugar when needed.
Malaye dehydrogenase enzyme
He knows a lot about the science stuff. 👏🏽
thankyou i am in 10th and your video helped me a lot to understand this topic easily
But what about Portucala Oleracea (common purslane) a plant that does factultative cam and c4 photosynthesis :D
Very nice, thank you for doing this topic
Here since 90k!
Thankyou so much....
2:04 "Burn through carbon previously fixed by the Calvin cycle" what does that mean
Check out my original tutorial on photosynthesis for the general information.
This was helpful
Thank you sir ,
plants that use which kind of photosynthesis are best for peeing on?
your video helped me gain 6 free marks in my endsem exams thank you so much.
*I learnt all the three processes in just one video. Thanks*
Dis z excellent. Thank u 💓
Thanks man
It's very helpful
Haircut? WTF?
wow what an explanation brilliant🙃
Really well explained my friend! I'll be linking to this video!
Meh
Perfect, thank you
Yo Professor 👏🏻
Searched C3 vs C4 and came here. I wanted corvettes but instead I got science
For the legal states, you can add Mj as a C3 plant
Wow 🤩
Love ❤ from India
Wait... in CAM plants, didn't you just say it open the stomata to keep H2O? And then you say during the day, it closes the stomata to keep H2O. Can you bring clarification?
I wish i was a attractive men life would be so much better
ong
Then why comment here 🙄
Information is Insufficient
But explained adequately than my school teacher
So mean
I have my exam on this tomorrow thanks so much Dave!!!!
Crushed it, Dave.
wow thank you thank you thank you!!!!
definitely helped, especially when I slowed the speed down by 25 %.
I'm from India 🇮🇳
Unmatchable, great sir dave
" Can a dog come from a protista? " - Kent Hovind 😂
When you can't understand this thing at school, but you understand this here
Not going to lie. I saw the thumbnail and I thought it was a meme trying to show how one should drive in a roundabout... And now I feel like it should be
Does this mean that CAM plants would die if they were kept under continuous light?
not really, they need light to do photosynthesis.
but they dont get dehydrated because they evolve to keep stomata close during the day, and opens during the night.
@sunergi ... woosh.
I mean, if they only open their stomata at night, would they suffocate and never have co2 to breath if you just kept them under a grow light 24/7.
Is it darkness itself that triggers the stomata opening, and how strict are they about that responce. In nature there would be no situation that would prepare them for 24/7 light. Cacti don't live above the arctic circle.
❤🇲🇦
In CAM plant, when O2 release into environment? If answer night, where is the O2 in the daytime?
CAM planta do photosynthesis during daytime, since they still need Sunlight to do the process.
and oxygen is a byproduct of photosynthesis so oxygen is also released during the daytime by plants.
while CO2 is always around too, 24/7
Why isn't this in your botany playlist
it is
How you made educational videos
Great
:)
I got here by eating president cookies
This will never enter my brain
:)
🙌🙌🙌
Aren't all grasses C4?
Where (cell) is chloroplast in cam plants?
for cactus, its entire body is the would-be leaf that does photosynthesis.
while the Thorns or spikes evolved into protective features instead, if they remain as leaves then they would lose water
Wonderful explanation
I like it thanks
thank you so much 👍
Thanku sir nice 👍🏿 session
Thanks that's really helpful
I had no idea
awesome explanation
King
Thank you
Ah! The another nice one
Thank you for the video. So are there any angiosperms that have conversantly evolved to do C4 photosynthesis?
In c4 plants where does the carbon dioxide comes from ???
I am asking the same thing but cannot find the answer
i think from mitochondria a little amount off carbon dioxide came
i think from mitochondria
Jedan za algoritam
Thank you very much professor Dave😍
Very helpful for my plant fisiology class, thank you :)
is there hope?? I feel like there is too much information to learn
Thank you Professor Dave. Nice video !👍
The other videos are appearing private to me. Is I because they are not released yet?
Yep they'll all be out soon!
@@ProfessorDaveExplains that's great! I'm waiting :) thank you, for the response and the videos, great explanations! I found them recently, and they are helping me understand plants better. I have a dream to some day start building agroforests, and these biology foundations I find very important!
hell yeah
Thank you very much.can you add references to the video.if this is possible?
Does this count towards anything for his continued education programs?? It definitely should
How about a series on the history of STEM? from all the way back to the egyptians bolstering the development of the geometry field to modern mathematicians like Terence Tao?
P. Dave. I just spent 2 days tying to teach someone what the “scientific method” is. They were convinced that the only “real” science was a strict adherence to “observation”-“hypothesis”-“experiment”... and that experiment was only “manipulating” a single IV and seeing how a single “DV” was changed.
I was sadly ineffective in my discussion. Maybe a couple of videos from you in this topic could be helpful?
I am continually amazed by the breadth of subject Prof Dave does videos on.
Rubisco is such an interesting enzyme. It's just about the most common enzyme you'll find in any plant cell, is incredibly slow by enzyme standards, and doesn't much care what direction it catalyses. Yet it's one of the most ancient and highly conserved enzymes in existence. What's been driving that 'lack' of evolution for billions of years when one would expect plants would really 'like' something better?
My best guess is it initially evolved to 'soak up' O2 when all life 'regarded' oxygen as a poison. For such a purpose you want:
-a lot of it to 'catch' every oxygen molecule as soon as possible
-so it didn't need to be efficient
-it did need to work so once functional there would be huge evolutionary pressure not to 'experiment'.
Some life discovered photosynthesis and Rubisco turned out to be useful for that as it would run backwards. Great, but now you need even more of it because 'whoops, there's even more of that nasty oxygen about!' So the pressure not to mess with a functional solution gets even bigger.
Finally you get some cells discovering the trick of aerobic respiration and so a poison becomes useful, when its not being poisonous. Before you know it you've got eukaryotes; the aerobic heterotrophs don't need Rubisco any more and ditch it, but the autotrophs are stuck with it warts and all.
It's a nice story, I'm afraid I'm not knowledgeable enough on the subject to know if it might be true.
DO YOU KNOW that RUBISCO is the most abundant enzyme in world ....awesome right🥳
For me it was the the most shocking when i got to know it was made by genomic and extra genomic DNA both in plant cells chloroplast
It hasn't evolved because they take the factorio approach; they just spam more of it to make up for lower efficiency
Thanks Dave, would've helped me last semester.
You are good at explaining sir thank you.
Thankyou professor...i am from india preparing for neet medical exam and looking for a vedio which will help me.....and here is the vedio of you welcoming me all the way along....thanks from ma heart❤️
Thank you very much for your video. If they are all angiosperms- why would convergent evolution? Was that only for specific metabolic pathways
Thank you Professor Dave! This is the video I needed to learn this! Now I know this!
Really enjoyed watching this video - thank you
Thanks!! really clear!