Welcome to MCAT Basics, your ultimate guide to the essential topics you need to master for the MCAT,

brought to you by the physicians at med school coach.

Every week, Sam Smith breaks down high-yield MCAT topics, ensuring you're primed for success on test day.

Join Sam as we explore the most crucial subjects outlined by the AAMC, pulled from official practice materials and third-party resources.

Get ready to elevate your MCAT game with topics tailored to maximize your score potential.

Hello, I'm Sam Smith.

This podcast is going to cover membranes.

So in the first segment, I'm going to go over a bunch of different topics regarding membranes. I'm going to talk about what a membrane is, its structure, its function, the various types of membranes in a cell. And then lastly, I'll talk about cell-to-cell junctions, since in some ways, they involve the plasma membrane. After that intro segment, I'll go into membrane transport, then membrane proteins, membrane dynamics,

and last I'll talk about membrane potential.

And this is going to be a lot of information coming in pretty hot.

Obviously, feel free to pause it, rewind, listen to it multiple times, whatever you need to do.

And this material will show up on two of the four MCAS sections.

That's going to be bio, biochem, and the chem physics sections.

That said, I hope you find this podcast helpful and let's get into it.

As I said in this intro part of the podcast, I'm going to go over a lot of different things,

starting with the broad definition of what a biological membrane is.

Biological membranes form semi or selectively permeable barriers between different compartments

in a cell. There's a multitude of different membranes in the cell, right? There is a membrane

that separates the inside of the cell from the outside of the cell. It's called the plasma membrane. There are two membranes in a mitochondria. There's an inner mitochondrial membrane,

and there's an outer mitochondrial membrane. The endoplasmic rectulum has a membrane. And so there's

just a lot of examples of membranes inside the cell. So overall, biological membranes are these

selectively permeable barriers that compartmentalize the cell. So overall, biological membranes are these selectively permeable barriers that

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