Match the lipoprotein (1 to 4) with its description (a to d).
1. chylomicrons
2. VLDL
3. LDL
4. HDL
b. “bad” cholesterol

Question

Match the lipoprotein (1 to 4) with its description (a to d).

1. chylomicrons

2. VLDL

3. LDL

4. HDL

b. “bad” cholesterol

Accepted Answer

Hello, everyone. Let's look at our next question. Does the following description correspond to a Chylomicron, VL DLL DL or HDL? And our description is it transports fat into the bloodstream. So all of these things are lipoproteins. That's the last L in their name. And in fact, a Chylomicron could sometimes be referred to as an ultra low density lipoprotein. And then the rest of ours are easy enough looking at their abbreviation VLDL, very low density lipoprotein LDL, low density lipoprotein HDL, high density lipoprotein. So all of these lipoproteins are involved in transporting lipids in aqueous solutions like blood and extracellular fluid in the body because of course, lipids in their natural state aren't soluble in water. We need a special way to be able to transport them through the bloodstream. So that solution is lipoproteins. So they're all involved in transport of lipids. So specifically what transports fat into the bloodstream? Well, when we think about this, do we want something like fat or cholesterol circulating around in our bloodstream? It's not great. Um cholesterol circulating in the bloodstream in the form of LDL. It causes a atherosclerosis can build up as plaques in your arteries narrowing them. So when we think about this bad consequence, which of these do we usually refer to as bad cholesterol? And that is LDL. So we usually think of it in its role of transporting cholesterol into the bloodstream, but it also transports fat into the bloodstream. So our answer is going to be LDL. We'll just touch briefly on our other kinds here. Uh We talked about the Chylomicron or we have Chylomicron here or ultra low density lipoproteins. And their role is to transport lipids that have been absorbed from the intestines. So you've eaten food lipids have been absorbed from that food and it transports them to adipose tissue for storage and then to cardiac and skeletal muscles. But that is not transporting fat into the bloodstream and then the VLDL or very low density lipoprotein have the job of transporting triglycerides produced in the liver to muscles. So these aren't uh fats or lipids being brought in through diet. These are triglycerides being produced by your own body in the liver. And then it transports those to the muscles. And then LDL as we discussed does indeed transport both cholesterol and fats to the bloodstream and then HDL, sometimes known as good cholesterol. And we can think of that as doing the opposite of the bad cholesterol. And again, it's important to remember that HDL isn't cholesterol molecule on its own, it's this lipoprotein protein, you know, consisting of cholesterol molecules, fat molecules, you know, this outer shell that transports cholesterol from the bloodstream to the liver for elimination. So we could think of it that, you know, the cholesterol fat circulating around the bloodstream can be harmful. And then something that can transport those molecules out of the bloodstream into the liver where it can be eliminated from the body is helpful. And I apologize. I just realized I left the Y out of Chylomicron when I wrote it. So fix that. But once again, when we're looking for the description, it transports fat into the bloodstream. What does that correspond to Chylomicron, VL, DLL, DL or HDL. This corresponds to LDL in its role of transporting both cholesterol and fat into the bloodstream. See you in the next video.

Match the lipoprotein (1 to 4) with its description (a to d).
1. chylomicrons
2. VLDL
3. LDL
4. HDL
b. “bad” cholesterol

Verified video answer for a similar problem:

Key Concepts

Lipoproteins

Chylomicrons

LDL and HDL

Match the lipoprotein (1 to 4) with its description (a to d).1. chylomicrons2. VLDL3. LDL4. HDLb. “bad” cholesterol

Verified video answer for a similar problem:

Key Concepts

Lipoproteins

Chylomicrons

LDL and HDL

Match the lipoprotein (1 to 4) with its description (a to d).
1. chylomicrons
2. VLDL
3. LDL
4. HDL
b. “bad” cholesterol