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

Thank you Professor Dave! Just the video I needed! As always, very well done!

Really well explained my friend! I'll be linking to this video!

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 👍🏻

I've learnt alot from dave over the years 👍

Unmatchable, great sir dave

This was amazing. Thank you!

Information is Insufficient But explained adequately than my school teacher

Thank you Professor Dave, this was very helpful for my upcoming ecology exam!

professor dave always comes in clutch the night before an exam. thank you!!

He knows a lot about the science stuff. 👏🏽

Thanks man It's very helpful

머리속이 한번에 정리 되었네요 감사합니다!

Perfect, thank you

*I learnt all the three processes in just one video. Thanks*

awesome explanation

Thanks that's really helpful

My first interaction with this topic was a 2nd year university assignment that asked to explain Kranz anatomy.

your video helped me gain 6 free marks in my endsem exams thank you so much.

Tnx Dave one day I will pay your gratitude

The resulting 4 carbon compound? How is malate formed in the mesophyll cells from OAA??

Dis z excellent. Thank u 💓

Thank you Professor Dave. Nice video !👍

Here since 90k!

wow what an explanation brilliant🙃

thank you so much 👍

Thanks Dave, would've helped me last semester.

Thank you sir ,

I am form india and subscribe you. Thanku so much professor Dave

Hello i am from Ethiopia 🇪🇹

This was helpful

Thank you for the video. So are there any angiosperms that have conversantly evolved to do C4 photosynthesis?

Thankyou so much....

Love from south India

Thank you very much professor Dave😍

Thanks 💖💖

wow thank you thank you thank you!!!!

In CAM plant, when O2 release into environment? If answer night, where is the O2 in the daytime?

Thank you

nice, clear differentiation! learned lots :)

Thank you professor Dave this is very helpful for my lecturer biology test

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.

Very helpful for my plant fisiology class, thank you :)

Very nice, thank you for doing this topic

I have my exam on this tomorrow thanks so much Dave!!!!

Wonderful explanation

Ah! The another nice one

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❤️

No shit guys, he knows alot about the science stuff (unlike those flat earthers out there)

Yo Professor 👏🏻

You are good at explaining sir thank you.

Thank you Professor Dave! This is the video I needed to learn this! Now I know this!

Where (cell) is chloroplast in cam plants?

Thank you very much for your video. If they are all angiosperms- why would convergent evolution? Was that only for specific metabolic pathways

I like it thanks

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.?

Can always count of prof dave. Looking forward to a question on this on my final thanks to you.

Really enjoyed watching this video - thank you

Wow 🤩

2:04 "Burn through carbon previously fixed by the Calvin cycle" what does that mean

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

Loved ❤️ from Islamic Republic of Pakistan 🇵🇰 may Almighty Allah bless you

But what about Portucala Oleracea (common purslane) a plant that does factultative cam and c4 photosynthesis :D

Thanks!! really clear!

For the legal states, you can add Mj as a C3 plant

Do you consider this high school or university level biology?

The other videos are appearing private to me. Is I because they are not released yet?

Love ❤ from India

Great

Does this mean that CAM plants would die if they were kept under continuous light?

definitely helped, especially when I slowed the speed down by 25 %.

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

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?

I just got some plants last week and in the midst of being a millennial struggling to keep plants alive, I was thinking about this exact thing. What a happy surprise

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?

Thumbs up if you are watching this before writing Biology test.

Does this count towards anything for his continued education programs?? It definitely should

thankyou i am in 10th and your video helped me a lot to understand this topic easily

I had no idea

hell yeah

🙌🙌🙌

In c4 plants where does the carbon dioxide comes from ???

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?

Why isn't this in your botany playlist

When you can't understand this thing at school, but you understand this here

Thank you very much.can you add references to the video.if this is possible?

Aren't all grasses C4?

This will never enter my brain

" Can a dog come from a protista? " - Kent Hovind 😂

How you made educational videos

❤🇲🇦

King

I don't watch you to learn, i watch you to laugh. (that was a compliment i find u funny idk y)

plants that use which kind of photosynthesis are best for peeing on?

I got here by eating president cookies

:)

Thanku sir nice 👍🏿 session

Jedan za algoritam

I wish i was a attractive men life would be so much better

Meh