Pretend you are a teacher preparing a quiz for the text I will provide. 
            Each quiz question should follow the format below. 
            Ensure that you carefully recheck the questions and answers for accuracy. 
            The output should be a ready-to-use list of dictionaries for the Python eval function:

            [

                    "question": "WRITE THE QUESTION HERE",
                    "options": ["A) OPTION_1", "B) OPTION_2", "C) OPTION_3", "D) OPTION_4"],
                    "answer": INDEX_OF_CORRECT_ANSWER_IN_OPTIONS_LIST,
                    "explanation": "EXPLAIN WHY THE ANSWER IS CORRECT"

            ]

            Text:
            atty acids can be  classified as 
belonging to one of two "families",  the omega-6 family 
or the omega-3 family.
Fatty acids belonging to these two families  differ not only 
in their chemistry, but also in  their natural occurrence and 
biological functions.
3. Derived Lipid
32 
1.
They are useful in the treatment of atherosclerosis 
(transport & decrease blood cholesterol & TG).
2.
The hormones are synthesized from them.
3.
Enter in structure of all cellular & subcellular membranes  & 
transport plasma phospholipids.
4.
Essential for skin integrity, normal growth & reproduction.
5.
Play important role in blood clotting (intrinsic factor).
6.
Important in preventing & treating fatty liver.
7.
Important role in health of the retina & vision.
8.
Can be oxidized for energy production.
Function of Essential Fatty Acids
3. Derived Lipid
33 
Steroids constitute an important class  of 
biological compounds.
Usually found in association with fat.
They’re derivatives of cholesterol that is formed of
steroid ring or nucleus (C17).
Biologically important groups contain this ring, are:
1)
Sterols
2) Steroids
2)
Adrenal cortical hormones
3)
Male & female sex hormones
4)
Vitamin D
5)
Bile acids
6)
Cardiac glycosides
A
B
Steroid nucleus “4 C rings” (no FA)
3. Derived Lipid
34 
Sterols
2
3
10
5
4
6
8
7
12
17
HO
1
A
9
14
15
B
21
22
24
26
20
23
25
18
27
11
13
16
19
C
D
Cholesterol
CH3
CH3
CH3  
CH3
HO
CH3
Insoluble in water
Found in animals but not in vegetable &plants
Include: Cholesterol (animals), Ergosterol (fungi) & Sitosterol (plants)
a) Cholesterol (CHL):
The most abundant steroid in the body
(Cholesterol-3-hydroxy-5,6-cholesten)
1)
Biosynthesis of steroid  
hormones, vitamin D, cardiac  
glycosides,…..
2)
Important component of cell
membrane (free CHL is a minor
component of cell membrane)
3) Formation of the bile salts (from  
catabolism of CHL in the liver)
Cholesterol Function
3. Derived Lipid
35 
• Produced from oxidation of CHL in the liver
•
They react with Na++ or potassium to produce sodium or potassium bile salts.
• Their function is as follows:
1) Emulsification of lipids during digestion.
2) Help in digestion of the other foodstuffs.
3) Activation of pancreatic lipase.
4) Help digestion & absorption of fat-soluble vitamins.
5) Solubilizing CHL in bile & prevent gallstones
formation
(gallstones is pure-CHL)
6) Choleretic action (stimulate their own secretion).
7) Intestinal antiseptic that prevent degradation
(Gallstones in gallbladder
3) Bile acids
3. Derived Lipid
36 
37 


            Quiz: