Hey everyone, I really hope you find this video helpful😊 If you would like more help, daily quizzes and study tips then head over to follow me on Instagram @MissEstruchBiology instagram.com/missestruchbiology/?hl=en OR if you want to get your hands on some A-level NOTES READY MADE by me with key marking points, keywords, and essay links, make your way to missestruch.com/ (this will be available from July 2021 - Can't wait?? email missestruch@gmail.com to get your hands on a copy before then).
this was very useful, thank you! i had a lot of doubts about the tension and negative pressure parts of the theory, but this video helped clear them up. thanks again :)
Thank you for the feedback Fareeha, I'm really glad that it has helped you. Let me know if there are any other topics you would like to see videos on to help.
This so far was the best, to the point, simple explanation ever! thanks for your efforts and now I am really clear about the topic, The topic was covered in a glance
Hi miss, i have a few questions: what is the purpose of lignin? why is it important that the xylem cells are dead? what are the differences between transport in the xylem and phloem? thanks so much i love u
Hi, thanks for the video. I have an important question - do we need to know about the apoplastic snd symplastic pathway? My teacher gave us an exam Qs on this to do in class about the route of water through the plant and it mentions the casparian strip and the different pathways. She also showed us a video from kerboodle aswell so I was thinking it’s for Aqa.
i study in Class 7.....I liked the video...But I have doubt in understanding that why does the water from the soil move towards the root hair?? Because,the concentration of liquids and gases are more in the root hair than in the soil...So why does the low concentration water and minerals move towards root hairs,where their concentration is higher??
Surely water molecules sticking to the sides will make it block some of the other water molecules moving up?, or is it good because it would increase pressure as the tube is now narrower?
Hello, the hydrogen bonds are not strong enough to cause a blockage. As soon as the negative pressure from above (due to water evaporating) this upwards pull is stronger than the H bonds. So H bonds help prevent the water dropping down due to gravity, but don't block the xylem. Hope that helps :D
Thank you! So glad you liked it. They aren't the same. Adhesion is the sticking of the water molecules to the walls of the xylem, and this results in capillarity. Capillary action is the process of the water flowing the the xylem against gravity. Hope that helps.
ah sorry. This video is old and is referring to my old website. No longer subject based questions. now they are skill or unit based on the resources tab
When I was taught this we were taught how minerals are actively transported into the roots and because this lowers the water potential the water follows by osmosis. You didn't seem to mention this in the video so I was wondering if it is something I need to know or will be asked questions about. Thank you :)
Hello, This comes up in the theory section of topic 2 when learning about osmosis and active transports. The focus in the mass transport in plants section (topic 3) in the specification isn't how water enters a plant, but instead how it is transported around a plant once it is already in the xylem.
hi, in my textbook it says that root pressure is a result of the active pumping of mineral ions by the endodermal cells into the xylem to produce movement of water by osmosis, this has confused me with the explanation in your video, could you please clarify!
Hello yes this is the same as I was saying. Active transport of minerals into the roots lowers the water potential so water then entered by osmosis and creates pressure pushing the liquid up the xylem
Hey everyone,
I really hope you find this video helpful😊
If you would like more help, daily quizzes and study tips then head over to follow me on Instagram @MissEstruchBiology instagram.com/missestruchbiology/?hl=en
OR if you want to get your hands on some A-level NOTES READY MADE by me with key marking points, keywords, and essay links, make your way to missestruch.com/ (this will be available from July 2021 - Can't wait?? email missestruch@gmail.com to get your hands on a copy before then).
This is really helpful Miss ❤❤, I've got my paper 1 AS biology tomorrow
thank you! This topic is so poorly explained in the text book, they over complicate it massively.
So glad it was easier to understand 😊😊 it can be a tough topic to get your head around!
this was very useful, thank you! i had a lot of doubts about the tension and negative pressure parts of the theory, but this video helped clear them up. thanks again :)
Thank you for the feedback Fareeha, I'm really glad that it has helped you.
Let me know if there are any other topics you would like to see videos on to help.
Best explanation of the theory I've found.
Thank you!
Glad you found it clear to follow😀
fr
your videos are saving my life, thank you so much
So pleased they are helping you 😊 Best of luck with your studies!
Really very well explained ma'am thank you for giving your knowledge here
It's my pleasure
Clear and straight forward explaination
This was so helpful, thanks! Using it for a gen bio exam.
Good luck for your exam!!! So glad you found it helpful 😊
helped a lot in clearing my basics ~love from India
Glad it helped!😀
This so far was the best, to the point, simple explanation ever! thanks for your efforts and now I am really clear about the topic, The topic was covered in a glance
Hello 👋🏻
Thank-you. Love that you found it so clear and easy to understand!
Really hope you find the rest of my videos just as helpful 😊
Hi! I was just wondering if u could make a separate video on apoplastic and symplastic pathways for water. Thanks
It took me the whole term to try and understand this topic 😭😭😭thank you so much ❤️🥹
You're welcome 😊
Saving our lives for Biology thank you
🤣🤣 amazing! Happy to be helping
this video has done wonders to me and my learners ❤❤❤
yay so pleased
Thank you so much for the explanation, I am now gaining a complete understanding on this topic thanks a lot.
So pleased it has helped you fully understand 😀
This video saved me two hours of self studying, thank you!
You're welcome! I hope it helped you better understand the topic ☺
This video is fantastic, your explanations are amazing - thank you
Thank you for your lovely comment. Really pleased to hear it was helpful and easy to understand.
thank you very very much, you've helped me understand everything coz I have to present this in class
Glad it helped 😊 I hope your presentation goes well 🤞🤞🤞
Hi miss, i have a few questions:
what is the purpose of lignin?
why is it important that the xylem cells are dead?
what are the differences between transport in the xylem and phloem?
thanks so much i love u
What grade did you end up getting?
Excellent explanation of the theory 👏, This explanation will help us with our reseach project by a lot. Thank you❤
You're welcome!!
Thank u its excellent eplaination
Hi, thanks for the video. I have an important question - do we need to know about the apoplastic snd symplastic pathway? My teacher gave us an exam Qs on this to do in class about the route of water through the plant and it mentions the casparian strip and the different pathways. She also showed us a video from kerboodle aswell so I was thinking it’s for Aqa.
hey. no not for AQA (it was on old spec but not anymore)
@@MissEstruchBiology ok thank you so much !
your videos are really helpful but are impossible to navigate according to topics. have you considered organising them into playlists?
Hello,
They are organised into playlists and each playlist is in spec order.
Have a look in the playlist tab for each of the separate topics (1-8)
just found this as a 5 marker at the end of a paper so this helped a lot
amazing 🙌🙌
thank you
Hope it helped 😊
I think you just carried my a-levels lol. Thanks so much!
☺️☺️☺️ Awww thank you! I'm so pleased the videos have helped you.
What grade did you end up getting?
Awesome Explanation ♥️
Thank you!!! So glad you think so
U did not talk about root pressure in ur water movement up the xylem question at the end tho 😢
you're doing gods work🙌
I hope it helps with your studies
you make it really fun 😭
i study in Class 7.....I liked the video...But I have doubt in understanding that why does the water from the soil move towards the root hair??
Because,the concentration of liquids and gases are more in the root hair than in the soil...So why does the low concentration water and minerals move towards root hairs,where their concentration is higher??
Surely water molecules sticking to the sides will make it block some of the other water molecules moving up?, or is it good because it would increase pressure as the tube is now narrower?
Hello, the hydrogen bonds are not strong enough to cause a blockage. As soon as the negative pressure from above (due to water evaporating) this upwards pull is stronger than the H bonds. So H bonds help prevent the water dropping down due to gravity, but don't block the xylem.
Hope that helps :D
@@MissEstruchBiology yes this helps, thanks
Thank you so much for the video. Is osmosis pulling the water up throughout the whole process or just towards the end?
The pull and movement is due to pressure gradients mainly 😊
i love you!!!! you are so good at explaining. but can I just ask, are capillarity and adhesion the same things?
Thank you! So glad you liked it.
They aren't the same. Adhesion is the sticking of the water molecules to the walls of the xylem, and this results in capillarity.
Capillary action is the process of the water flowing the the xylem against gravity.
Hope that helps.
What’s the difference between positive and negative pressure Miss
Hello,
A very brief summary is...
Positive = high pressure causing a push force
Negative = low pressure causing a pull force.
Hope that helps.😊
Where exactly on the website are practice questions for this topic?
ah sorry. This video is old and is referring to my old website. No longer subject based questions. now they are skill or unit based on the resources tab
@@MissEstruchBiology it's ok ,but still this video helped a lot in building concepts so thank you so much!
Ma'am It was very benevolent
Thank you, what an interesting compliment😄
so helpful!
So glad! :D
Are the factors affecting transpiration on the spec? Couldn't find it in the textbook thanks
Very useful for me
Thank you, glad it helped!
Thanks alot miss💗
You're welcome 😊
Excellent.
Many thanks!
@@MissEstruchBiologyThank you. I understand it completely.
@@MissEstruchBiology can you do a video about chapter Immunity ( As and a level)
@@abhishekhowtar8785 hello, all the A-level theory videos are uploaded. The immunity videos is within the topic 2 playlist
transpiration is cooooooooooooooooooooooooool
god send
Thanks very much if not of u I would have failed
you're so welcome!!
Bro that’s cap 🧢.......
Illarity 🤣🤣🤣.....................
Sorry 😪
But seriously good vid 👍
🙈😆
thanks!
Why are you teaching kids to do this? Really...why? Talk about NEGATIVE PRESSURE
Very neat presentation.
Thank you
Glad you liked it!
What grade did you get in your exam?
When I was taught this we were taught how minerals are actively transported into the roots and because this lowers the water potential the water follows by osmosis. You didn't seem to mention this in the video so I was wondering if it is something I need to know or will be asked questions about. Thank you :)
Hello,
This comes up in the theory section of topic 2 when learning about osmosis and active transports.
The focus in the mass transport in plants section (topic 3) in the specification isn't how water enters a plant, but instead how it is transported around a plant once it is already in the xylem.
I hate prahanna ahilan, i was watching this wonderful video. Prash skipped the video and made me very angry. Plzz give him detention
🤣🤣
Hi! Thank you for the well-explained video
Excellent break down! Thank you so much!
extremely useful, thanks a lot!
You're welcome 😊 Glad it was useful
This is gonna save me from not failing my exams thank you so much, very well explained 👏 😩
I really hope so! So pleased it was helpful 😊
does an increase in water concentration lead to an increase in the water potential?
yes it does 😁 Distilled water has a water potential of 0 which is the highest value you get.
this was over the top fantastic! thanks a lot Miss Estruch!!!!!
Aww thank you! Really pleased you liked it and I hope it helps with your studies.
do we need to know about symplast and apoplast pathways?
not for AQA
Thank you, this helped me a lot!!!
Hello, that's great 😊 Really pleased it's helped you
hi, in my textbook it says that root pressure is a result of the active pumping of mineral ions by the endodermal cells into the xylem to produce movement of water by osmosis, this has confused me with the explanation in your video, could you please clarify!
Hello
yes this is the same as I was saying. Active transport of minerals into the roots lowers the water potential so water then entered by osmosis and creates pressure pushing the liquid up the xylem
thank you for this video! i'm struggling to differentiate between positive and negative pressure though?
negative pressure creates a pulling force and positive pressure creates a pushing force
What grade did you end up getting?