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
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
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.
