AS Biology - Factors affecting membrane structure (OCR A Chapter 5.2)

[@Maria_mmss]

Could you please make a seperate playlist for pag practicals only and how to answer the pag based exam questions? thanks

[@Twenteen2]

^this

[@tamana7147]

Your videos literally saved my life! Could you pleaseeee do videos on the heart?

[@melaviia1929]

I am literally in love with you

[@Twenteen2]

agreed

[@khanishsehgal9915]

Please correct me if I'm wrong but isn't ethanol a polar solvent? and if so, does the explanation you mentioned apply to the polar solvent or the non-polar solvent?

[@tobster6687]

Do you know if the OCR A Biology exam Board Content has changed at all over the past 4 years (the time range of most of your videos I've come across)? Is everything on this channel up to date with todays Content? Thanks !!!

[@BioRach]

No, the content has not changed in the last few years. Everything is up to date :)

[@RitishMadani]

Good

[@abogaid82]

For temp could u say it causes both Intrinsic proteins and extrinsic proteins to denature and does this increase or decrease permeability?

[@abogaid82]

Would u say if channel proteins denature that permeability would decrease because polar molecules can no longer be transported in the membrane?

[@BioRach]

I'd be cautious when linking transport proteins with permeability. When they denature due to heat, there is no telling how the structure changes to make them more "open" or "closed". The membrane permeability will definitely change but it's risky to say it increases or decreases.

[@TSnodg]

please could you put this in the chapter 5 playlist? I can only see 5.1 and 5.3 (+ the rest)

[@BioRach]

It is in the playlist, it was just at the bottom of the playlist :) It's now been moved up top so the videos should be in the right order now :)

[@TSnodg]

@@BioRach thank you!

[@marvellousadenuga1239]

Could you talk abt how pH may affect membrane structure, but other than that really nice

[@AdamMahmood-lf4jn]

high PH and low PH will change the tertiary structure of protein causing it to denature, increasing permeability (enzymes topic link)

[@ZestyGecko7]

you can hear a police siren from 1:44 - 1:51 lmao

[@DMERX]

shush

[@BioRach]

Aww thanks 🤣

[@sriramganesan2347]

@Rav Jayakodi w