It's amazing how powerful some of these tropisms are. Ever seen a fir rooted in pure rock in the side of a cliff? This demonstrates the tropism for tree roots to seek water and nutrients in the underlying soil, while turning upward against gravity and toward light and heat. Another excellent piece, Prof Dave!
The world of plants is indeed incredible. The fact that they can't move has shaped their physiology and biochemistry in a quite complex way in order to effectively pass on their genes to the next generation. Animals on the other hand are simpler organisms in general. But, to be fair, the way the nervous system of animals has been shaped by natural selection is quite stunning too.
It's a real shame your academic videos don't do as well as your flat earth conspiracy videos. This is so informative and well made, I really appreciate them.
thanks! now that plants can sense so many different things, it would be really interesting to know how they do that. You mentioned light sensors, but I would be interested in more details.
Very interesting video, though I do have one question. Do you know if krummholz, the twisted and malformed trees seen on mountaintops and similar environments, are caused by biological tropisms, or just physically through the harsh conditions twisting and killing parts of the tree?
They only "revolves" in the probability wave of the orbirtal. For example, if it is they are in the dumbbell shaped P orbital, electrons of that orbital only go in the dumbbell shaped orbital but never in other parts like the nucleus. If the shape is a double sphere like the 2S orbital the electron can be in the inner sphere or in the outer shell but never in the middle part
Orbital is not a circle or anything else bro, it's only imagination, the path followed by electrons to revolve are orbitals, orbitals are of many shape😊hopes u like😀😀
Well, it has to do with probability. The atomic orbital is where the electron is most likely to be found. The electron does not move in a predictable path. I like to picture a bug buzzing around in a big room (you can't predict exactly where it would be). The electron has particle and wave character and the atomic orbital is described by a mathematical function.
It's more like "on" the orbital than "inside" of the orbitals. However you should watch a few different youtubes about orbitals, in order to understand more of it, I would recommend at least five or half a dozen, but rather ten or a whole dozen; many times I understand something (better) after it was explained to me in several different manners. TH-cam and the internet in general is great for exactly that!
Is this the end of the botany series for now? You might consider sometime adding a video about the differences between monocots and dicots. In any case, thanks so much.
How do you distinguish between a male and a female tree? There are lots of ginkgo trees in my region. Some streets appear to have ginkgo trees almost all female making the side walk messy with seeds all the way. Some other streets near me seem to have only male ginkgo trees so the walkway is only messy with leaves. Do you recommend I climb up the tree to check if there's a clue for this question? It's a red, yellow fall season as a matter of fact. 🪳🪰🦨
Well, I did just a bit of googling, and what I've turned up is that it is not very easy to tell the difference other than the females dropping fruit in autumn and maybe if you look closely at the flower. Article says it is actually possible for the tree to change its sex, interesting. www.gardeningknowhow.com/ornamental/trees/ginkgo/ginkgo-male-vs-female.htm
Buongiorno, I started following your youtube presentations on botany. I am a Biology student at the University of Freiburg im Breisgau, but thanks to a cooperation project called Eucor I may attend all seminars also at the University of Basel. You have explained that plants react to: light gravity water touch chemicals. But according to our prof Klaus Schläppi who is using" Strasburger − Lehrbuch der Pflanzenwissenschafte"plants react to following factors: light sound liquid chemical gas chemical mechanical gravity. What is your opinion about it? And then another question: have you ever thought of teaching at the University of Basel? We have already experienced some personnel problems since one prof had been absent for a month and had to substituted by a colleague in Australia (!). Switzerland has the highest salaries in Europe. And you also speak Italian which is a plus over here. Cordiali saluti Cristina
What is it you want him to allow you, please? People should thumb you up, so the professor is more likely to notice you; *SO FOLKS, THUMB THIS UP!!* *PLEASE PRETTY PLEASE!!!*
It's amazing how powerful some of these tropisms are. Ever seen a fir rooted in pure rock in the side of a cliff? This demonstrates the tropism for tree roots to seek water and nutrients in the underlying soil, while turning upward against gravity and toward light and heat. Another excellent piece, Prof Dave!
The world of plants is indeed incredible. The fact that they can't move has shaped their physiology and biochemistry in a quite complex way in order to effectively pass on their genes to the next generation. Animals on the other hand are simpler organisms in general. But, to be fair, the way the nervous system of animals has been shaped by natural selection is quite stunning too.
*I really like your channel.*
best regards
It's a real shame your academic videos don't do as well as your flat earth conspiracy videos. This is so informative and well made, I really appreciate them.
Thank you for your work, I honestly appreciate it
I was just learning about botany with your videos lol
Thank u so much ..that is so helpful 🤩 I am a researcher in the field of pharmacognosy and ur videos have been very beneficial 🙏
This video is great because I teache biology
1:30 you might think they have been brainwashed.
Nice explain sir😊😊
thanks! now that plants can sense so many different things, it would be really interesting to know how they do that. You mentioned light sensors, but I would be interested in more details.
Wow you left me with a good understanding mind thanks professor
Very interesting video, though I do have one question. Do you know if krummholz, the twisted and malformed trees seen on mountaintops and similar environments, are caused by biological tropisms, or just physically through the harsh conditions twisting and killing parts of the tree?
Thanks 👍
“That leaves us with a reasonable understanding” Leaves 😂😂😂
😢😮😮to 😮😅
Please make many more videos related from Botany families descriptions
Do electrons revolve 'on' the orbitals or anywhere 'inside' the orbitals ? I am confused. Sorry to ask this question here but please help me.
They only "revolves" in the probability wave of the orbirtal. For example, if it is they are in the dumbbell shaped P orbital, electrons of that orbital only go in the dumbbell shaped orbital but never in other parts like the nucleus. If the shape is a double sphere like the 2S orbital the electron can be in the inner sphere or in the outer shell but never in the middle part
Orbital is not a circle or anything else bro, it's only imagination, the path followed by electrons to revolve are orbitals, orbitals are of many shape😊hopes u like😀😀
Well, it has to do with probability. The atomic orbital is where the electron is most likely to be found. The electron does not move in a predictable path. I like to picture a bug buzzing around in a big room (you can't predict exactly where it would be). The electron has particle and wave character and the atomic orbital is described by a mathematical function.
It's more like "on" the orbital than "inside" of the orbitals. However you should watch a few different youtubes about orbitals, in order to understand more of it, I would recommend at least five or half a dozen, but rather ten or a whole dozen; many times I understand something (better) after it was explained to me in several different manners. TH-cam and the internet in general is great for exactly that!
Another great video!
Awesome sir
Much needed video
Is this the end of the botany series for now? You might consider sometime adding a video about the differences between monocots and dicots. In any case, thanks so much.
Yes I will do that and a bunch more soon!
@@ProfessorDaveExplains Awesome, thanks so much
How do you distinguish between a male and a female tree? There are lots of ginkgo trees in my region. Some streets appear to have ginkgo trees almost all female making the side walk messy with seeds all the way. Some other streets near me seem to have only male ginkgo trees so the walkway is only messy with leaves. Do you recommend I climb up the tree to check if there's a clue for this question?
It's a red, yellow fall season as a matter of fact. 🪳🪰🦨
Most trees have both male and female gametes.
@@ProfessorDaveExplains Ginkgos are an exception, though, the tree is male or female, not both.
Oh whoopsie! Haha yeah then I dunno.
Well, I did just a bit of googling, and what I've turned up is that it is not very easy to tell the difference other than the females dropping fruit in autumn and maybe if you look closely at the flower. Article says it is actually possible for the tree to change its sex, interesting.
www.gardeningknowhow.com/ornamental/trees/ginkgo/ginkgo-male-vs-female.htm
Interchangeable?!
The street I know is "aligned" with almost all female ginkgo. Or some may have turned female later, possibly.... ?!
Buongiorno,
I started following your youtube presentations on botany. I am a Biology student at the University of Freiburg im Breisgau, but thanks to a cooperation project called Eucor I may attend all seminars also at the University of Basel. You have explained that plants react to:
light
gravity
water
touch
chemicals.
But according to our prof Klaus Schläppi who is using" Strasburger − Lehrbuch der Pflanzenwissenschafte"plants react to following factors:
light
sound
liquid chemical
gas chemical
mechanical
gravity.
What is your opinion about it?
And then another question: have you ever thought of teaching at the University of Basel? We have already experienced some personnel problems since one prof had been absent for a month and had to substituted by a colleague in Australia (!). Switzerland has the highest salaries in Europe. And you also speak Italian which is a plus over here.
Cordiali saluti
Cristina
Thanks 😊 this is really helpful ❤
Great video, but I have a question about why some plants grow upside down in caves
thanks
thank u dave make more on chemistry
Hello everyone!!👐, Just want to say and hope you have a Happy Holiday🥰🥰
very nice
Your
who hits 'dislike' on something like this?
gotta be religious right?
Someone who follows one of the hoaxes I debunked and thinks that they are somehow getting revenge.
I have to watch this fo class smh🤦🏽♂️
Lmao, I think I know who you are since I have to watch it too....
I'm first to see🤘🤘😀😀
Could you please continue youre modern physics series with more advanced Quantum mechanics and maybe even start relativistic quantum mechanics.
Nobody :
Kent Hovind : when does the plant turn into a human
What about carnivorous plants?
I'll do a bunch more topics soon!
Do plants too want to survive or get their genes copied? Clearly they are not eager as animals do and why so?
Organisms don't have to be sentient in order for natural selection to apply to them.
But which plant is the pesticide that will kill all the mosquitos in my backyard
A pesticide plant, obviously.
👍
I love u
.
Who came here because of YuB?
τρόπος
Sir can you plz contact me through mail... cuz i really need you to allow me something...!!
What is it you want him to allow you, please?
People should thumb you up, so the professor is more likely to notice you; *SO FOLKS, THUMB THIS UP!!*
*PLEASE PRETTY PLEASE!!!*
a a was
Do plants feel pain? If they do, vegans are sacked!?😬
First
中国高中必修三内容😂
if plants grow, T̝̰͇̞̤̋ͪ̓ͧ͞͠H̸̺̪͉ͤ̈̍́͛̑Ȩ̼̰͈͍͔͓͉̦ͮ̓͊ͩͦN̶̟̖͆̌̔ ̬̝̍ͦͩͦ̚͠͠S̺͇͕̼̲̲̭̀͗̋̍̾͡Ǫ̖̹̭̺̱̍̃̑̊͋͛̚ ̧̺ͪ̓͑͆̓̚̚̚D̺̬͎͙̘̼͕̣ͬͪͬ̾ͩ̀O̢̠̪̰̰̙̒̿̍́E̎͏̢͕S̶̥̰͙̠̥̹̯̾͑͐ ̹̪ͪ̅ͪ͊̀M̛̦̪͔̟̰̹ͧͣ̅̄Y̶̫̺̼̻͖̤ͦ̉ͬͦ͒ͤͅ ̷͚͔̩͙̘̤̘̅̃ͮͩ̿͒̋̀͟D̶̡͈͉̰͐͆ͭ̓̃̀̿̑I̴̩̯̘̠̥̥̳̔͢-
Mine grows longer,faster and harder though