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 AS CONSTITUENT OF CELL MEMBRANE IS BECAUSE THEY POSSESS a) Fatty acids b) Both polar and nonpolar groups c) Glycerol d) Phosphoric acid
Q5. GANGLIOSIDES ARE COMPLEX GLYCOSPHINGOLIPIDS 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 AGAINST COLD AND HOT WEATHER TO EXOSKELETON OF INSECTS IN FORM OF a) cutin b) waxes c) cholesterol d) oil
Q8. DERIVATIVES OF PHOSPHATIDIC ACID, WHICH ARE COMPOSED OF GLYCEROL, FATTY ACIDS 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 FOLLOWING COMPOUNDS CHOLESTEROL DOES NOT SERVE AS 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 or amphipathic b) They are more soluble in water c) Extraction of lipids from tissues require organic solvents d) They are insoluble in water
Q20. WHICH OF THE FOLLOWING IS FALSE ABOUT FATTY ACIDS? a) Melting point of fatty acids decreases with increase in degree of saturation b) Lipids in tissues that are subjected to cooling are more unsaturated c) Naturally occurring unsaturated long-chain fatty acids are nearly Trans-configuration d) The membrane lipids contain mostly unsaturated fatty 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 GLYCEROPHOSPHOLIPID INVOLVED 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 A PHOSPHOLIPID? a) Glycerol b) Fatty acids c) Deoxyribose d) Phosphate group
Q25. WHAT IS A FUNCTION OF PHOSPHOLIPIDS? 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 point 7 B waxes 8 A phospholipids 9 C Brain 10 B Fatty acid and alcohol 11 D Biological membranes 16 A Oleic acid 17 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-configuration 21 D Triacyl glycerol 22 D Phosphatidylinositol 23 A Fatty acid 24 C Deoxyribose 25 D All of the above 12 C Steroids 13 B Glycerol molecule linked by ester bonds to 3 fatty acids 14 C Glycolipids 15 B insoluble in water