00:01
Hi bailey, so your question all of the following are correct about triglycerides except what? so when you go through the multiple choice options first keep in mind that triglycerides are going to have three of these fatty acid chains that you can see in this diagram.
00:17
That's where the name triglyceride comes from but really what we're interested in is the fatty acid chain.
00:24
So on the left you can see unsaturated with the double bond in the middle it means it's unsaturated with hydrogens.
00:31
So you don't have the maximum number of hydrogens around it you get this little kink formation here that you see depending on how many double bonds are there.
00:42
And then a saturated fatty acid or triglyceride chain would have the maximum number of hydrogen saturating the molecule and as you can see it would have this straight structure right just like you've heard of saturated fats versus unsaturated fats.
01:02
So the multiple choice says first triglycerides are a concentrated source of energy that is true because all this potential energetic bonds in the fatty acid chain and triglycerides have three of them so it's like stocked potential energy.
01:25
So that is true.
01:27
You guys will cross that out.
01:28
We're looking for the what's not true right.
01:31
The second statement is triglycerides dissolve in non -polar solvents.
01:36
That's pretty similar to the third out the fourth option triglycerides are insoluble in water.
01:40
So triglycerides because they have all these carbons and hydrogens they are non -polar.
01:47
Water, i'll draw it right here, is polar.
01:55
So it does not equally share electrons and you get a oxygen that's hogging an electron a little bit so it gets this negative charge down here and the hydrogens have a positive charge a slightly partial positive...