Lipids

Question 1

What is a lipid?

Answer 1

Contains carbon, hydrogen and oxygen

Question 2

What is a triglyceride?

Answer 2

Consists of a molecule of glycerol with 3 fatty acids attached to it

Question 3

What are plants and animal fats mostly made up of?

Answer 3

Triglycerides

Question 4

What is a fatty acid molecule?

Answer 4

A long chain of carbon atoms with hydrogen atoms attached to them and an acid group (-COOH) at one end

Question 5

What are the hydrogen atoms attached to?

Answer 5

Carbon atoms

Question 6

What is a saturated fatty acid?

Answer 6

If every carbon atom in the chain is joined by a single bond

Question 7

What is an unsaturated fatty acid?

Answer 7

If one or more of the bonds is a double bond

Question 8

What is a fatty acid with many double bonds?

Answer 8

Polyunsaturated

Question 9

What are phospholipids?

Answer 9

Like triglycerides but have 2 fatty acid chains and a phosphate group

Question 10

What are cell membranes made from?

Answer 10

A double layer of phospholipids