Tropism (Types, positive & negative) | Control & Coordination | Biology | Khan Academy

Let's explore (+ & -) photo, geo, chemo, thigmo, & hydrotropism.
More free lessons & practice -www.khanacademy.org/science/c...
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Created by Mahesh Shenoy

[@jennicadsouza3451]

Phototropism means movement towards light . Geotropism means movement of plant growing towards the earth gravity . Hydrotropism mea s movement of plants parts in response to water or moisture. Thigmotropisn means the growth of movement of plant parts in response to the lower stimulus is called thigmotropism. Chemotropism is the phenomena of growth of plant organs in response to chemicals Do like ❤️

[@nibeditapattanaik3751]

towards or away. not just towards. movement towards the stimulus is called positive tropism whereas movement away from the stimulus is called negative tropism

[@aryanshsingh9282]

Thigmotropism means movement of pant in response to touch

[@mpscscience7609]

Students don't need notes on u tube. They want osm pictographic explanation that's what u r doing sir. Thank sir.......

[@bigbluebird6986]

This guy genuinely helped me understand this stuff. He is amazing at teaching, he even through in an interactive part to it, which helps us learn.

[@ved206]

My answer is of litteraly of more than half page ...after understanding i was read and it set on.my mind

[@crookshanks1883]

Your handwriting is beautiful !!

[@funnyvidsfoundonreddit8324]

That's true

[@seemamahale4252]

Seriously yar

[@sonamsahu9803]

Exactly...Firstly I thought it's some kind of font style

[@urbanboi601]

Nahi bro Ye animate kiya hai

[@jfjclyde]

i cant even right that way with my pencil or my mouse

[@janamejaysingh6317]

Ur voice is magical and the way u teach is awesome

[@zinartjonah4217]

never been so taught well like this, the teacher is amazing 🥰🥰🥰

[@gmasterji3980]

Sir ur voice and ur english is great . From now I will watch every learning vedio from ur channel.

[@shadanalrikabi6645]

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[@Ratherbedie6109]

This video really help's to understand what's happening between away and towards the tropism . And your voice is clear to understand easily. Thank you very much ❤️

[@frenzyfahi8731]

You're the definition of teacher sir. Thank you 😊

[@jayjaykisan4532]

He is high class trained teacher

[@Sarah-bp5wl]

thank u sir ,,,explanation was awsm...

[@sathyaroshan582]

Thank you for ur wonderful teaching.. It's much easier to learn

[@strawberrylemon1999]

For some odd reason I can understand what he is explaining and I'm very much thankful. 🙏

[@jabamalaimary1234]

Ur handwriting is awesome!

[@maleehehe]

I have my paper tomorrow ,wish me luck

[@lucky3248]

B. O. L

[@greendaquil]

@@lucky3248 Kinda late dude

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Are you related the the headmaster? It’s called KHAN ACADEMY and ur last name is khan 👁👄👁

[@bigbluebird6986]

What did you make bro

[@Saraswati9899]

Thank you so much sir for a nice explanation I was searching for this kind of video for from past 2 hours and now by your content I am really very satisfied keep going well done

[@hradayendrasingh9004]

Your handwriting and explanation..both are fabulous....🥰🥰🥰😍😍😍

[@---oz6qm]

very good explanation sir...finally understood

[@memescorner101]

Justttt wowwwwwww ❤ this is mind blowing!!

[@AdityaGupta-wl7sn]

Best bio teacher

[@seemamahale4252]

Hmmmmmm. Seriously yar

[@artipatel3991]

I loved your lecture sir Thank you 😊

[@psycho8902]

Excellent! Thanks for this. 🙂

[@chanidupriyashan8892]

Good work buddy thank you . My all problems have solved. Please give a lesson about Hydrotropism .

[@My_Cal]

SOO GOOD MAN THANKS SO MUCH YOU SHOULD HAVE MORE SUBS

[@premlal8316]

Your explanation is very good. Thanks

[@nigarsultana5421]

Well explained!!!👍 Superb👌

[@rumpafatema5703]

So helpful!

[@jennicadsouza3451]

Tropism : response or orientation of a plant to certain stimulus that acts with greater intensity from one direction to another is called tropism

[@riyaraj2233]

Ur writing and English are fabulous

[@Lilyisqueen67]

Thank you you helped so much!❤

[@Pavan-kumar123]

The class is amazing 🤩 I can understand easyli thank you 😊

[@031vidhyashreen5]

Well explanation sir....very useful thank you sir. Upload more videos sir 😁

[@innovativetamizha6469]

Thanks a lot sir , and your explanation is superb👍

[@amayarandeniya6692]

Well explained Sir! Thank you so much. I understood the lesson after watching this video. Your teaching method is unique as one in a million and I love it. Nice handwriting and presentation too :)

[@niharika20232]

Obsessed with your voice and handwriting😌

[@ashagarud503]

How can you give such a great explanation Thanks for this video

[@gamingwithajay2731]

Tq sir ur explanation is most useful to us... ...... ....

[@seemapandey9227]

Sir you taught very well 👍👍

[@_just.livia24]

Wow! You are an awesome teacher,thank you so much!!!

[@AmayaJ2007]

Wow Now I understand so well. Thank you so much... 😍😍😀😀

[@sharonbarbo8259]

your presentation and explanation are both helpful and clear.

[@SarojDevi-ez7ky]

Very nice explanation. I can't understand biology in class. But ur explanation is something different and new that explains easily. Thank u sir❤❤

[@semajose8504]

Both your explanation and handwriting are student friendly!

[@afrin_shaik4635]

I loved your handwriting and explanation....

[@kapilakapila9845]

Very usefull one tnx for this ❤️

[@selinaekaran4052]

Thank you sir you have made easy

[@jayamenterprises6013]

Wow nice teaching understood clearly 💗

[@strawberry7383]

Youre awesome!!! Thankyou so much!

[@degaregetezzera733]

Great explanation 👏👏👏

[@habibawael5435]

Thankyou so much for your explanation

[@meenakshikharyal7693]

Thanks for the explanation

[@shashiranjan2086]

Cleared all my doubts

[@sahityasartcorner7430]

Wonderful explanation and animation👍👏👍

[@buhokyan4585]

I hope all my teacher like you on how to teach..

[@biowallahmvsir8783]

Nicely elucidated 🌹👍

[@b-zar8912]

Tropic movements and nastic movements. I learnt this briefly in 6th std ICSE and it was never mentioned again (I'm going to be in 11th now. XD) It feels nice finally knowing what they mean now.

[@obilol8802]

nice XD

[@varenyaarya7228]

thank you so much sir... i have my exam on Monday and your video really helped

[@mohammedsalah4355]

sooooo helpful man keep it up

[@jevozime]

thank you so much!

[@rinkyagarwal9233]

Amazing explanation 👍👍

[@mittapallyswaroopa5911]

Very well told

[@maitryparekh9865]

Awesome explanation 👍

[@kayondajishipa6821]

Best explanation ever

[@josephmendonca105]

Super fantastic teaching sir

[@ThrillingRide-OP]

Why are u legend

[@AdithyaM-cw5ul]

thanks sir it was really a good video 👍

[@salimjaved1890]

Very nice explanation

[@pissedlove]

As a 5th grader, this was rlly helpful! 😊

[@lalitharaj7808]

Excellent 👌 keep uploading the video

[@ShivamKumar-gd4mw]

I love you sor do you teach is just amazing 🤘😎👍

[@pic01]

Thank you so much for this video

[@pic01]

I've loved and understood from it

[@rambugdane7106]

Awesome 👍👍

[@chinmaysgames9453]

In example of Venus flytrap, I think it should be tropic movement as the plant feels the presence of insect and then trap it, so it would be thigmotropism

[@Travelling2477]

Nice Explanation

[@son__goku1389]

Thanks a lot sir

[@sumanth_ff8970]

AWESOME

[@muzamilhassan3768]

Supereb. Sir. Thanks

[@wafeeqa2304]

Loved the video😋🤣

[@bhawyasrivastava7027]

This is the best!❤

[@hasnainsaqlain6292]

Hello

[@tomi4784]

Love All the way from Nigeria❤

[@shapansarker1]

Lol

[@chandrashekar3977]

Super teaching sir

[@dvchandrashekar4782]

Thanks sir

[@user-fl9hr5tv9o]

My tutor said tropisms refers to movements of plants to external unilateral stimulus

[@mythrismmythrism982]

I like this hand writing

[@thinginground5179]

i aint even indian yet i prefer this version of kahn academy

[@anthonygikuri]

Thank you for the clear video. How can I use the pen 🖋️... It's interesting

[@official_siddharth7575]

Super sir mast

[@user-fl9hr5tv9o]

Then touch should be a tropical movement like the mimosa

[@amanraiarmylover502]

Nice sir

[@MuhammadKamran-hh7wz]

I will use your techniques to teach my student if possible please guide me how can I make videos of my lectures I need you help regarding software you using along with the tutorial link to develop ppt

[@Anonymous-ki4ok]

You break dow the lessons so that we can understand it really easily. Thank you very much.

[@ezroxgamingyt2298]

And cover all topics

[@cherryvillanueva8125]

thank you po

[@ezroxgamingyt2298]

Please make one shot

[@ClaireWanjiku-mk2gy]

Your teaching well but what is the cause of the phototropism

[@muhdfahim2089]

does root cell able to respond light?

[@meghasharma7746]

❤️❤️❤️❤️❤️❤️

[@karabongwenya3757]

I didn't know that there are "touch me not" plants😱

[@My_Cal]

Same

[@sai-pq4rr]

first time i’ve seen indian talk good in english

[@noura..6899]

I loveee uuu you are the best loveee uuuu take fly kiss 💋

[@ezroxgamingyt2298]

Please