Professional Scientists of Lemmy: What is your field of study's, most complex unanswered question?TehBamski@lemmy.world to Asklemmy@lemmy.ml – 228 points – 6 months ago106Post a CommentPreviewYou are viewing a single commentView all commentsNo one really knows how osmosis works.I had to derive osmotic pressure for my statistical mechanics exam in my bachelor's. So in what sense don't we know?We don't know what molecular mechanism creates the pressure.Isn't it just water carrying stuff across a concentration gradient?Gravity is just stuff falling, but there’s complexity there, as well.No? Water can't carry anything across the membrane.Oh. Then how does the stuff get across the membrane? Does the membrane allow stuff to move over a concentration gradient without the water?Water can move freely across the membrane, but the stuff that's dissolved in the water cannot move across the membrane.
No one really knows how osmosis works.I had to derive osmotic pressure for my statistical mechanics exam in my bachelor's. So in what sense don't we know?We don't know what molecular mechanism creates the pressure.Isn't it just water carrying stuff across a concentration gradient?Gravity is just stuff falling, but there’s complexity there, as well.No? Water can't carry anything across the membrane.Oh. Then how does the stuff get across the membrane? Does the membrane allow stuff to move over a concentration gradient without the water?Water can move freely across the membrane, but the stuff that's dissolved in the water cannot move across the membrane.
I had to derive osmotic pressure for my statistical mechanics exam in my bachelor's. So in what sense don't we know?We don't know what molecular mechanism creates the pressure.
Isn't it just water carrying stuff across a concentration gradient?Gravity is just stuff falling, but there’s complexity there, as well.No? Water can't carry anything across the membrane.Oh. Then how does the stuff get across the membrane? Does the membrane allow stuff to move over a concentration gradient without the water?Water can move freely across the membrane, but the stuff that's dissolved in the water cannot move across the membrane.
No? Water can't carry anything across the membrane.Oh. Then how does the stuff get across the membrane? Does the membrane allow stuff to move over a concentration gradient without the water?Water can move freely across the membrane, but the stuff that's dissolved in the water cannot move across the membrane.
Oh. Then how does the stuff get across the membrane? Does the membrane allow stuff to move over a concentration gradient without the water?Water can move freely across the membrane, but the stuff that's dissolved in the water cannot move across the membrane.
Water can move freely across the membrane, but the stuff that's dissolved in the water cannot move across the membrane.
No one really knows how osmosis works.
I had to derive osmotic pressure for my statistical mechanics exam in my bachelor's. So in what sense don't we know?
We don't know what molecular mechanism creates the pressure.
Isn't it just water carrying stuff across a concentration gradient?
Gravity is just stuff falling, but there’s complexity there, as well.
No? Water can't carry anything across the membrane.
Oh. Then how does the stuff get across the membrane? Does the membrane allow stuff to move over a concentration gradient without the water?
Water can move freely across the membrane, but the stuff that's dissolved in the water cannot move across the membrane.