MCQS ON LIPIDS

Dr. RUCHIKA YADU

Q1. THE FATS AND OILS ARE RESPECTIVELY RICH IN

a) Unsaturated fatty acids

b) Saturated fatty acids

c) Saturated and unsaturated fatty acids

d) None of these

Q2. ESSENTIAL FATTY ACIDS ARE

a) Linoleic acid

b) Arachidonic acid

c) Linolenic acid

d) All of these

Q3.GLYCOSPHINGOLIPIDS ARE A COMBINATION OF

a) Ceramide with one or more sugar residues

b) Glycerol with galactose

c) Sphingosine with galactose

d) Sphingosine with phosphoric acid

Q4. THE IMPORTANCE OF PHOSPHOLIPIDS ASCONSTITUENT OF CELL MEMBRANE IS BECAUSE THEYPOSSESS

a) Fatty acids

b) Both polar and nonpolar groups

c) Glycerol

d) Phosphoric acid

Q5. GANGLIOSIDES ARE COMPLEXGLYCOSPHINGOLIPIDS FOUND IN

a) Liver

b) Brain

c) Kidney

d) Muscle

Q6. GREATER NUMBER OF CARBON ATOMS IN CHAIN RESULTS IN HIGHER

a) melting point

b) boiling point

c) freezing point

d) stability

Q7. LIPIDS PROVIDE INSULATION AGAINSTCOLD AND HOT WEATHER TO EXOSKELETON OFINSECTS IN FORM OF

a) cutin

b) waxes

c) cholesterol

d) oil

Q8. DERIVATIVES OF PHOSPHATIDIC ACID,WHICH ARE COMPOSED OF GLYCEROL, FATTYACIDS AND PHOSPHORIC ACIDS ARE KNOWN AS

a) phospholipids

b) acylghycerols

c) triglycerides

d) esters

Q9. CEREBROSIDES ARE GLYCOLIPIDS THAT ARE IMPORTANT CONSTITUENT OF

a) Biological membranes

b) Lung

c) Brain

d) bones

Q10.A LIPID IS FORMED BY THE CONDENSATION REACTION BETWEEN

a) Carbon and hydrogen

b) Fatty acid and alcohol

c) Fatty acid and amino acids

d) Fatty acids and amines

Q11. LIPIDS ARE IMPORTANT CONSTITUENT OF

a) Nucleus

b) Ribosomes

c) Both a and b

d) Biological membranes

Q12.WHICH OF THE FOLLOWING IS A DERIVED LIPIDS

a) Fats

b) Oils

c) Steroids

d) waxes

Q13. FATS CONSISTS OF

a) Alcohol linked by ester bonds to 3 fatty acids

b) Glycerol molecule linked by ester bonds to 3 fatty acids

c) Glycerol molecule linked by ester bonds to a fatty acids

d) Glycerol molecule linked by ester bonds to 4 fatty acids

Q14. COMPOUNDS WITH CARBOHYDRATES ALONG WITH FATTY ACIDS ARE CALLED

a) Simple lipids

b) Waxes

c) Glycolipids

d) Phospholipids

Q15. TRIACYLGLYCEROLS ARE

a) soluble in water

b) insoluble in water

c) soluble in water at elevated temperature

d) partially soluble in water

Q16. CHOOSE THE MONOUNSATURATED FATTY ACID

a) Oleic acid

b) Linoleic acid

c) Linolenic acid

d) Stearic acid

Q17. FOR WHICH OF THE FOLLOWINGCOMPOUNDS CHOLESTEROL DOES NOT SERVEAS A PRECURSOR

a) Bile pigments

b) Bile salts

c) Vitamin D

d) Sex hormones

Q18. ALL ARE NON ESSENTIAL FATTY ACIDS EXCEPT

a) Oleic acid

b) Linolenic acid

c) Palmitic acid

d) Stearic acid

Q19. WHICH OF THE FOLLOWING IS FALSE ABOUT LIPIDS?

a) They are either strongly hydrophobic oramphipathic

b) They are more soluble in water

c) Extraction of lipids from tissues require organicsolvents

d) They are insoluble in water

Q20. WHICH OF THE FOLLOWING IS FALSE ABOUT FATTY ACIDS?

a) Melting point of fatty acids decreases withincrease in degree of saturation

b) Lipids in tissues that are subjected to cooling aremore unsaturated

c) Naturally occurring unsaturated long-chain fattyacids are nearly Trans-configuration

d) The membrane lipids contain mostly unsaturatedfatty acids

Q21. WHICH OF THE FOLLOWING IS A STORAGE FORM OF LIPID?

a) Glycolipid

b) Phospholipid

c) Sufolipid

d) Triacyl glycerol

Q22. AN EXAMPLE OF GLYCEROPHOSPHOLIPIDINVOLVED IN CELL SIGNALING IS

a) Cardiolipin

b) Phosphatidic acid

c) Phosphatidylcholine

d) Phosphatidylinositol

Q23 WHICH MOLECULE IS HYDROPHOBIC?

a) Fatty acid

b) Phosphate group

c) Glucose

d) Carboxylate group

Q24. WHICH IS NOT A COMPONENT OF APHOSPHOLIPID?

a) Glycerol

b) Fatty acids

c) Deoxyribose

d) Phosphate group

Q25. WHAT IS A FUNCTION OFPHOSPHOLIPIDS?

a) Being part of a drug delivery system in some pharmaceuticals

b) Regulating cellular activities such as cell migration

c) Forming the cell membrane and the membranes of other organelles in the cell

d) All of the above

Ques. Option Answer

1 C Saturated and unsaturated fatty acids

2 D All of the above

3 A Ceramide with one or more sugar residues

4 B Both polar and nonpolar groups

5 B Brain

6 A melting point7 B waxes

8 A phospholipids

9 C Brain

10 B Fatty acid and alcohol

11 D Biological membranes

12 C Steroids

13 B Glycerol molecule linked by ester bonds to 3 fatty acids

14 C Glycolipids

15 B insoluble in water

16 A Oleic acid17 A Bile pigments

18 B Linolenic acid

19 B They are more soluble in water

20 C Naturally occurring unsaturated long-chain fatty acids are nearly

Trans-configuration21 D Triacyl glycerol

22 D Phosphatidylinositol

23 A Fatty acid

24 C Deoxyribose

25 D All of the above