00:03
Hello.
00:04
So the question is what kind of molecules pass through cell membrane most easily? and our group of antichuices are large and hydrophobic.
00:18
And b is small and hydrophobic, large and polar, small and ionic.
00:32
And last is large and hydrophilic.
00:36
Hydrophilic okay so these are the group of answer choices and we have to find which one is the correct see small and non -polar molecules can easily move through the plasma membrane and ions and charged molecules are not easily passed through the plasma membranes because they need a carrier protein for their movement.
01:10
So they are not easily transported across the plasma membrane.
01:14
And hydrophobic molecules can easily pass through the plasma membrane because they are water repelling and they interact directly with the hydrophobic interior of the membrane.
01:26
Okay.
01:27
So i will write which molecules can pass and which cannot pass through the plasma membrane easily.
01:33
See small non -polar molecules can easily pass through plasma membrane and hydrophobic molecules can also pass through the plasma mammary and hydrophobic molecules can easily pass i've written it two times can because they interact because hydrophobic means they are water repelling because they are so they are water repelling and they interact with the hydrophobic interior of the plasma membrane so because they are water repelling and interact with this is interact with interior of the hydrophobic interior of the membrane so if a molecule is small or non -polar or hydrophobic it can easily pass through the membrane but see large molecules cannot easily pass okay now large molecules large molecules cannot easily pass and also ionic and polar molecules also cannot pose okay ionic and polar molecules they cannot pass easily because they require a carrier protein okay and this is because they need a carrier protein to pass need a carrier protein ions and polar molecules need a carrier protein to pass through the plasma membrane so they are they are not capable of passing easily through the membrane so small non -polar and hydrophobic molecules can easily pass so according to these are answered large in hydrophobic see large molecules cannot pass.
04:30
So this will not be a answer.
04:31
Small and hydrophobic.
04:33
A small and hydrophobic both can pass easily.
04:36
So these molecules can easily pass.
04:39
And large and polar, they cannot pass...