Hi, i understand that the hydrophobic molecules can pass through the surface membrane because the center of the phospholipid bilayer is hydrophobic, but how come the hydrophobic molecules aren’t stopped by the hydrophilic phosphate heads?
What is the significance of reducing the movement of water soluble chemicals across the cell surface membrane by the cholesterols? Do they harm the cell by disrupting the formation of the polar heads? Or perhaps they mess with the fluidity and the structural integrity of the membrane by messing with the charges or the bonds? Thanks in advance Cheers
Hi. A polar molecule is one with a charge and a non-polar molecule has no charge. I cover those ideas in the topics in Biological Molecules. Hope that helps.
Hello sir Thankyou so much for making this video it really helped me when it came to revising for my exams I have a question i would be reallly greatful if you could help me with answering it Suggest two ways tubulin is essential to protein synthesis and protein secretion in eukaryotic cells Thankyou so much i really appreciate it
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carried me through gcse , now time for a levels
@Ahiru1907me three
Thanks for doing all these a level vids in time for me starting y12
How did you do?
actual goat
Amazing video sir I’m glad that you are making a level videos
Thank you so much!!! I find your videos so incredibly helpful.
Hi, i understand that the hydrophobic molecules can pass through the surface membrane because the center of the phospholipid bilayer is hydrophobic, but how come the hydrophobic molecules aren’t stopped by the hydrophilic phosphate heads?
will you be covering the cell structure and transport across the cell membrane topics?
Hello.
Please could you do a video on slide/specimen preparation in Microscopy?
Please share one on biological molecules simple way..
thanks so much for doing these vids. will you be covering component 2 as well?
What is the significance of reducing the movement of water soluble chemicals across the cell surface membrane by the cholesterols?
Do they harm the cell by disrupting the formation of the polar heads? Or perhaps they mess with the fluidity and the structural integrity of the membrane by messing with the charges or the bonds?
Thanks in advance
Cheers
Hi sir, I just wanted to ask that for the role of DNA polymerase in DNA replication, do we need to know about 3' and 5' (3 prime and 5 prime)?
Yes you do. I cover it in my videos on DNA replication.
Span : covers and extend across
So helpful
I love you
same
Sir, what does polar and non polar mean?
Hi. A polar molecule is one with a charge and a non-polar molecule has no charge. I cover those ideas in the topics in Biological Molecules. Hope that helps.
Sheldon Cooper appears in my head when I see sir 😂😅 They look quite alike lol
Hello sir
Thankyou so much for making this video it really helped me when it came to revising for my exams
I have a question i would be reallly greatful if you could help me with answering it
Suggest two ways tubulin is essential to protein synthesis and protein secretion in eukaryotic cells
Thankyou
so much i really appreciate it
Certified boyo
Sir voice is same like ,big bang theory sheldon ☺️
W
;)