Lipid Vitamins

in this video we're going to begin our lesson on lipid vitamins. But first let's revisit our map of the lesson on lipids down below. And so of course in our previous lesson videos we've already discussed the fatty acid based lipids and we're currently discussing the ice Supremes and Lloyd's. So in our previous lesson videos we've already discussed the terrapins, interpret noise steroids and steroid hormones. And so here in this video we're going to introduce the lipid vitamins. But first, what are vitamins? Anyways? Well, vitamins can be defined as essential compounds that are required in the diet in very small amounts since the organism can't actually synthesize those vitamins. Now really there are two general classes of vitamins that you should be familiar with. There are fat soluble vitamins which are otherwise known as lipid vitamins and then there are also water soluble vitamins. Now moving forward in our course, we're mainly going to be focusing on the fat soluble vitamins or in other words the lipid vitamins. And so when it comes to the lipid vitamins really there are four lipid vitamins and those lipid vitamins are vitamins A. D. E. And K. And so vitamins A. D. E. And K. Which are the lipid vitamins are all soprano Lloyd's, which is exactly why the lipid vitamins are showing up in this region of our table underneath of the soprano roids. And so one way to help you remember the lipid vitamins is to use the memory tool a deck. And so vitamins A. D. E. And K. Sound like a deck of cards. And so here we have a deck of cards to help remind you of these lipid vitamins A, D, E, and K. And also down below. Right here we're showing you some playing cards as well, to remind you that the lipid vitamins include vitamins A, D, E, and K, which spells a deck. Now these lipid vitamins, vitamins A, D, E, and K perform a wide variety of different functions and these functions are not really related to membrane structure. And so as we move forward in our course, we're going to talk about each of these different lipid vitamins A. D. E and K in their own separate videos, starting with vitamin A. And so I'll see you all in our next lesson video to talk more about vitamin A.

in this video, we're going to talk about our first lipid vitamin, which is vitamin A. Now it's important to note that vitamin A is also commonly called retinol, and so retinol and vitamin A are referring to the same molecule. Now Vitamin A is an ice opera annoyed lipid vitamin that's critical for proper eyesight. And so you can see we've got these eyeballs over here to help remind you that vitamin is important for eyesight. And that's because vitamin A is actually required to form Ah, light receptor protein in our eyes called ra adoption. And so rid option is this light receptor protein found in specific cells of our eyes called rod cells. And also vitamin A is derived from the precursor molecule called beta carotene, which, as its name implies, is a terp annoyed, abundant in carrots. And so, if you take a look at our image down below notice over here, what we have is the beta carotene molecule and thes carrots over here. And that's because again, the carrots contain ah lot of beta carotene and beta carotene is the precursor molecule for our vitamin A over here, or are retinol molecule, which we have box in right here, and you can clearly see that beta carotene and vitamin A are both is a paranoid lipids because you can see these is a pre Munitz embedded in their structures. And so that's important to note now, as we mentioned up above in our lesson, vitamin A is required to form the light receptor protein called raw adoption. And so here we have the light receptor protein reduction and this light receptor protein. Adoption is found in specific cells of our eyes, allowing us toe have good iSight. And so, if you eat your carrots, you'll end up getting good eyesight. And that's, ah, common, um, thing that is known about carrots, that carrots allow you toe develop good eyesight. And so this here concludes our introduction to Vitamin A and retinal, and our next lesson video will be able to talk about our next lipid vitamin, which is vitamin D. So I'll see you guys there

in this video we're going to talk about our second type of lipid vitamin, which is vitamin D. Now vitamin D. Is another I. Sopron. Oid lipid vitamin. But this time it's actually critical for regulating calcium and phosphorus metabolism. Now, vitamin D requires ultraviolet light usually from the sun in order for its formation and activation. And so it's important to be able to get a little bit of sunlight in order for your bodies to generate vitamin D. Now, vitamin D is ultimately going to increase calcium absorption in our bodies, leading to calcium uptake by our bones. And this allows us to get strong and healthy bones. And so vitamin D. Is associated with strong bones. Now vitamin D is also derived from the precursor molecule cholesterol. And so in our previous lesson videos we've seen cholesterol act as a precursor for a lot of other molecules. And once again, cholesterol is going to be a precursor for vitamin D. And so if we take a look at our image down below, notice, on the far left over here we're showing you the cholesterol precursor molecule and in order for our bodies to uh convert cholesterol into vitamin D, whose structure we're showing you over here. It requires ultraviolet light usually from the sun essentially it requires sunlight. And then of course vitamin D. Here is going to increase calcium absorption in our bodies and allow us to obtain strong healthy bones, like what we see over here and so this here concludes our introduction to vitamin D. And in our next lesson video we'll be able to talk about our third lipid vitamin vitamin E. So I'll see you guys there.

in this video, we're going to talk about our third type of lipid vitamin, which is vitamin E. Now it's important to note that vitamin E is also commonly referred to as alpha to call for all. And so vitamin E is another I suppose annoyed lipid vitamin but this time it's going to serve as an antioxidant. And you might recall that antioxidants remove highly reactive and dangerous free radicals. And so what helps me remember that vitamin E serves as an antioxidant? Is that antioxidant literally says the letter E in it when you say it anti oxidant. And so as an antioxidant, vitamin E is going to protect other compounds from these highly reactive, dangerous free radicals. And because these free radicals can cause cancer to develop vitamin E is also important for helping to prevent cancer. So vitamin E has a very important protective function. So if we take a look at our image down below right here, notice that we're showing you the chemical structure of vitamin E. And so we can put in E here for vitamin E. And we know that vitamin E is also commonly referred to as alpha to cholesterol. And so notice that we're associating this shield right here with the chemical structure of vitamin E. And that's because vitamin E serves as a protective antioxidant that removes highly reactive and dangerous free radicals. And so notice down below in our image we're showing the free radicals here as this angry mob. And so angry mobs and free radicals are really just troublemakers, they are highly reactive and dangerous and free radicals can actually cause cancer in cells. And so notice down below in our image that we're actually showing you some free radicals here with the UNP aired electron, the lone pair of electron here on these structures that you see here. And so hopefully this angry mob of free radicals will remind you of the free radicals that are highly reactive and dangerous. And we really need protection from these free radicals and that is exactly what vitamin E serves to do with this shield here, protecting from these free radicals as an antioxidant. And so really this here concludes our lesson on vitamin E or alpha. Take A for all. And in our next lesson video, we'll be able to introduce our last lipid vitamin, which is vitamin K. So I'll see you guys there.

in this video, we're going to talk about our fourth and final type of lipid vitamin, which is vitamin K. Now Vitamin K is another I Sopron oId lipid vitamin. But this time it's going to be critical for regulating the blood Qalat ing process, which is helpful to heel an injury. Now the name vitamin K was actually derived from the Danish Word Co ag you elation which was spelled with a K and that corresponds with the English word coagulation which of course means clumping or clotting. And so that goes to show that vitamin K is critical for the blood clotting process. And so if we take a look at our image down below notice over here we're showing you the structure for vitamin K and notice that vitamin K is indeed an ice Sopron oId lipid vitamin, which means that it's derived from is a prion units like the one that we have highlighted here Now notice that this vegetable that we're showing you here is kale and kale, which also starts with a K like vitamin K is high in vitamin K, and so by eating kale, you can get vitamin K and again vitamin K is critical for the blood clotting process that we see here, which helps to heal an injury. And so this here concludes our introduction to Vitamin K. And so I'll see you guys in our next lesson video, where we'll get to recap all of our lipid vitamins, so I'll see you guys there.

in this video we're going to do a brief recap of the lipid vitamins or the fat soluble vitamins. And so recall from our previous lesson videos that in order to remember the lipid vitamins. All we need to do is think about a deck of cards. And so notice here we're showing you an image of a deck of cards and notice that a deck is spelled A D, E and K. And so if we can remember that then we'll be able to remember that the four lipid vitamins are vitamins A, D. E. And K. And so notice over here what we have is a table with a brief description of the functions for each of these lipid vitamins. And so recall from our previous videos that vitamin A. Serves as the site of the primary photochemical reaction in vision. And so it's very important for developing developing good eyesight. And so notice that we have a picture of a carrot here to remind you that carrots are a high source of beta carotene and beta carotene is the precursor for vitamin A. And then we have an image of the eye. Just to remind you that again, vitamin A. Is important for the development of good eyesight or good vision. And so also recall from our previous lesson videos that vitamin D. Is important for regulating both calcium and phosphorus metabolism. And so vitamin D. Relies on ultraviolet light or UV light from the sun in order for its formation and activation. And also vitamin D. Again is going to be regulating calcium absorption and therefore it will help with the development of strong and healthy bones. Now next we have vitamin E. And recall that vitamin E. Is going to serve as an anti oxidant. And so it's going to serve as an antioxidant in order to prevent cancer. And so it is able to essentially protect from free radicals. And so here what we have is a shield to remind you that vitamin E serves a protection uh function from these free radicals. And then last but not least, what we have is vitamin K. And recall that vitamin K has uh an important regulatory function in blood coagulation or blood clotting if you will or blood clumping. And so recall that kale is a good source of vitamin K. And here what we have is just an image of the bloodstream to remind you that vitamin K. Is important for blood clotting. And so this here concludes our brief recap of the lipid vitamins and we'll be able to get some practice applying all of these concepts as we move forward. So I'll see you all in our next videos