How do the components and structure of cell membranes relate to t...

Question

How do the components and structure of cell membranes relate to the functions of membranes?

Accepted Answer

Welcome back everyone. Let's look at the next question. It says which of the following statements best describes how a biological membrane works in respect to its structure and components. So thinking about the structure of biological membrane and what makes it up. Let's look through our answer choices. Choice A says semi permeable barrier regulates the entry and exit of molecules into and out of the cell. And this is a pretty good description. It's correct. Um It's it's semi permeable or selectively permeable. So it controls which molecules are enter and exit. And when that happens that gives a cell control of its inner environment and keeps it separate from its surroundings. So this seems like a pretty good candidate for answer. But something like which best describes how it works. That's that's a little bit vague. So it's probably a good decision to mark that if you were in a hurry, go ahead and choose that and move on. But if you've got time, look at the other answers and make sure nothing seems like a better answer. Choice B says proteins stabilize the cell membrane. Well, this is not correct, proteins do a lot of things in cell membranes but they don't stabilize it. That's cholesterol. So that's not our answer choice C. Says cholesterol helps in transporting and sharing materials. Well, that's also not correct. That's proteins that transport and share materials cholesterol stabilizes the cell membrane um by preventing extreme movement of the phosphor lipids when at high temperatures. So proteins help transport and share materials cholesterol stabilizes the structure and then finally, Choice D says has sites to produce energy in the form of a T. P. Um Well, it's the mitochondria that are the source site of a TP production in the cell, not the membrane, so that is not correct either. So this made it easy. The other answers were incorrect. So Choice A. Which statement best describes how biological membrane works and respected structural components that would be semi permeable barrier regulates the entry and exit of molecules into and out of the cell. See you in the next video.

How do the components and structure of cell membranes relate to the functions of membranes?

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