Albert Teen
powered by
Albert logo

YOU ARE LEARNING:

pointer
Lipids
lessonMenuButton

Lipids

lesson introduction

Lipids

Lipids are biomolecules that includes fat, oil and steroids, and have a wide range of functions for life.

What do you normally think of when people say fats?

hint button

Fats are one of the three main biological molecules. We get these biological molecules from the food we eat. What do you think the other two biological molecules are?

hint button

You can select multiple answers

What other word do you think we use for fats in biology?

hint button
1

This shows the chemical structure of a lipid. How many different chemical elements does it contain?

hint button
block image
2

What element do you think the CC stands for?

hint button
block image
3

What element do you think the HH stands for?

hint button
block image
4

What element do you think the OO stands for?

hint button
block image
5

So lipids consist of 3 elements

Carbon CC, hydrogen HH and oxygen OO.

block image
1

This example of a lipid consists of two parts.

Here those two parts are labelled A and B.

block image
2

Three fatty acids are held together by a glycerol molecule. Which part is fatty acids? A or B?

hint button
block image
3

So part B is fatty acids

That means part A is the glycerol molecule that holds them together.

block image
4

There are different kinds of lipids. This one has three fatty acids, so what do you think we call this kind of lipid?

hint button
block image
5

Triglycerides consist of a glycerol molecule and three fatty acids

Remember that "tri" means three. This is the kind of lipid we mainly find in body fat in humans for example.

block image

There are different kinds of lipids. Apart from triglycerides, common examples include monoglycerides, diglycerides and phospholipids.

Try saying that with your mouth full! 🤣

A triglyceride contains...

hint button
1

True or false? Both the glycerol molecule and the fatty acids consist of carbon, hydrogen and oxygen.

hint button
block image
2

True or false? Both the glycerol molecule and the fatty acids are chains of carbon atoms.

hint button
block image
3

How many carbon atoms are in a glycerol molecule?

hint button
block image
4

So both the glycerol molecule and the fatty acids are chains of carbon atoms.

A glycerol molecule has 3 carbon atoms. The number of carbon atoms in the fatty acid chains depends on what kind of fatty acid it is.

block image

How many glycerol molecules does a lipid contain?

hint button

Triglycerides is a type of lipid. How many fatty acids does it contain?

hint button

Diglycerides is another type of lipid. How many fatty acids do you think they contain?

hint button

Pick all the options that are correct.

hint button

You can select multiple answers

1

To summarise! Lipids are fats

There are different kinds of lipids, for example monoglycerides, diglycerides, triglycerides and phospholipids.

block image
2

Lipids contain 3 elements

Carbon CC, hydrogen HH and oxygen OO.

block image
3

Triglycerides consist of two parts

One glycerol molecule that holds together three fatty acids.

block image
4

The glycerol molecule and the fatty acids are all chains of carbon atoms

The glycerol molecule has 3 carbon atoms, but the number of carbon atoms in a fatty acid will depend on what kind of fatty acid it is.

block image