Biology forum

THANKS EVERYONE!!!!!!

Note: This is not a homework question. I am just trying to understand the mechanism of integral proteins. Question: We know integral proteins have nonpolar regions inside. But are integral proteins like channels (which have a tunnel inside) or are they like pumps or are they not hollow and cannot pa...

Thanks!!!

But could you cite exactly what about those topics that would help me?

I mean, I read over http://en.wikipedia.org/wiki/Brownian_motion and it seemed to me more like math and equations that the mechanism of negative pressure.

Please help! Your insight is greatly appreciated.

Thanks very much! ARE YOU SAYING THAT NEGATIVE PRESSURE IS DIFFUSION?????????????? Can someone verify this? Wiki doesn't seem to have this... Excerpted from Campbell, Reece biology: "Diffusion in a solution is fairly efficient for transport over distances of cellular dimensions (less than 100 u...

THANKS! So let me clarify: Question: why does gas flow from a region of higher pressure to a region of lower pressure - WHAT IS ITS MECHANISM?????? Answer: This is the same mechanism as diffusion (as gas molecules move much faster than water molecules). Question: My book says that a FLUID (MEANING E...

how about this: why does gas flow from a region of hihger pressure to a region of lower pressure????

uh... what question are you answering?
In the future, please post the question you are answering and then answering.
Thanks for answering, though.

sorry. you were right. I will now try to make it a little more clear. There is a main question (bold) and then a side question (italized). I'm not sure where this question should go, as there is some chemistry involved. But I saw this concept in my biology book, so I placed my super hard question he...

ummm... that's not my question

I'm not sure where this question should go, as there is some chemistry involved. But I saw this concept in my biology book, so I placed my super hard question here. Any help is greatly appreciated. NOTE: This is NOT a homework question. This is just a question I stumbled upon as I was trying to unde...

NOTE: This is not a homework question. This is a study effort for a big upcoming test.

Can enzymes use energy (like ATP) in powering their reactions? How do they catalyze reactions if they don't actively use energy like ATP??????

Thanks for the response!
Can anyone else (answer all my questions)??????????