When you think about the plasma membrane being a "barrier" to entry, it is the nonpolar region of the membrane (the tails of the phospholipids) that is the main component blocking substances from moving through. Because steroid molecules are vastly nonpolar they have the ability to mesh with the nonpolar tails, allowing them to move through when other polar substances cannot.
![NEW 2025 EXAM - IB Biology B1.2 - Proteins [SL/HL] - Interactive Lecture](http://i.ytimg.com/vi/h7V8uVyCAxc/mqdefault.jpg)
![NEW 2025 EXAM - IB Biology B1.2 - Proteins [SL/HL] - Interactive Lecture](/img/tr.png)
![B1.1 Carbohydrates [IB Biology SL/HL]](http://i.ytimg.com/vi/eV--VWunHUU/mqdefault.jpg)
Sooo much chemistry damn this chapter hard
Yep, quite a few sections like that
Great work!! Appreciating these videos, shuch a life-saver!
This video is much better to learn from than from the book. Thank you ❤
Ur a lifesaver
just trying to be a grade-saver :D
@@Elec2ricLearning When is B3.1 coming? :)
Tysm!! This makes understanding the lesson so much easier 🙌
Happy to help, thanks for watching!
lifesaver for reallllllll literally the best explanation
Happy to help!
KANKACIM ALTIMA SICTIM
@@Hellohello12678 kanka sükranlarımı dile getirdim ne var bunda???
Literally saved me from my exam... also his voice is so soothing it's easier to focus! haha
❤️
OMG thank you ....! I'm going to share this channel with my ib bio mates....
Thank YOU! I would greatly appreciate that :D
i hope you continue to make these videos to the new syllabus
That's the plan!
@@Elec2ricLearning i hope your making one as i speak
Why are the steroids able to pass through the phospholipid bilayer if they are hydrophobic? Wouldn't it repel from the Polar heads?
When you think about the plasma membrane being a "barrier" to entry, it is the nonpolar region of the membrane (the tails of the phospholipids) that is the main component blocking substances from moving through. Because steroid molecules are vastly nonpolar they have the ability to mesh with the nonpolar tails, allowing them to move through when other polar substances cannot.
Thank you!!
Thanks for watching 😁
thank you!!!💝💝💝
🤘
Thank. You.
do I need to know how to draw the structure?
I would say you need to know how to recognize the structures if asked about them and given images. Probably not so much drawing them from scratch.
thank you!!!!
and also, can u share answers for activities?
You are welcome! I have the answers available to channel members, you can find the B1.1 video here ua-cam.com/video/eNG5Bzl0UfE/v-deo.html
thank you very much
do you have a discord to ask questions?
I do not have one at the moment, but feel free to ask a question in the comments or you can email me at elec2riclearningyt@gmail.com