1) What are definition of Lipid? a) Organic substance relatively insoluble in organic solvent. b) Organic substance relatively soluble in organic solvent.Organic substance r c) Organic Organic substance relatively partially insoluble in water and in organic solvent. 2) Is lipid polar or non-polar? a) Polar b) Non-polar 3) What are the classification of lipids. [I. Simple lipid; II. Complex lipid; III.  Single lipid; IV.  Derived lipid] a) I and II only b) II , III and IV c) I, II and IV d) All above 4) There are 2 types of phospholipids according to the basis of type of alcohol present. a) Glycolipid and Lipoprotein  b) Fats and Oils c) Glycerophospholipids and Sphingophospholipids 5) What are the basis of biological membrane? a) Peptidoglycan b) Fatty acid c) Cellulose d) Lipid bilayer 6) What are the function of lipids? a) Storage form of energy b) Repair and build body tissues c) Act as buffer 7) What does it mean by saturated? a) Contain maximum possible number of hydrogen atom  b) Contain minimum possible number of hydrogen atom  8) What is the correct lipids structure? a) b) c) 9) What are the characteristic of fatty acids? [ I. long chain carboxylic acids; II insoluble in water; III saturated and unsaturated; IV typical 12-18 carbon atoms ] a) I, II and III b) II, III and IV c) III and IV  d) All above 10) Phospholipid consist of what? a) 2 fatty acids b) Polar (head) and non-polar (tail) c) 1 glycerol 11) Why phospholipids forms biological membrane? a) Because the C-H bonds in lipids are very non-polar, they are not water soluble and aggregate together in water. b) Because there are attractions between +ve and -ve charges. c) It has only polar membrane 12) Lipids are ____ in water. a) Insoluble b) Soluble 13) Described what is polyunsaturated fatty acid. a) Has double bonds between one or more pairs of carbon atoms. b) Form long chain c) Fatty acid has more than one double bond. 14) The following are lipid compounds except..... a) Waxes b) Steroids c) Glucose d) Fats and oils 15) [A high proportion of non-polar C-H bonds causes the molecules to be hydrophobic.] Following above statement it is TRUE or FALSE? a) TRUE b) FALSE

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