1) What is the test to check the presence of a lipid? a) Biuret Test b) Benedicts Test c) Emulsion test d) Iodine Test 2) Which two are correct in a phospholipid? (select two) a) Hydrophobic head group b) Hydrophilic head group c) Hydrophobic fatty acids d) Hydrophilic fatty acids 3) How many fatty acids are there in a phospholipid? a) 1 b) 2 c) 3 d) 4 4) What molecule are the fatty acids connected to? a) Protein b) Glucose c) Cellulose d) Glycerol 5) What type of bond connects the fatty acids to glycerol? a) Ester Bond b) Peptide Bond c) Glycosidic Bond d) Hydrogen Bond 6) What are the fatty acids made out of? (select two) a) Amino Acid b) Short Hydrocarbon Chain c) Long Hydrocarbon Chain d) Carboxylic Acid 7) True or False? Lipids are polymers a) True b) False 8) True or False? Unsaturated fatty acids have double bonds between carbon atoms a) True b) False 9) True or False? In a phospholipid bilayer the fatty acid tails point out a) True b) False 10) In the test for lipids a positive result is shown by... a) A blue/black colour b) A brick-red colour c) A white emulsion d) A lilac/purple colour

Lipids

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