MCQ Chapter 6 Biology Class 11 Maharashtra Board Biomolecules 1. What are the three main types of macromolecules found in living organisms?Carbohydrates, lipids, nucleic acidsProteins, polysaccharides, nucleotidesLipids, amino acids, sugarsPolysaccharides, polypeptides, polynucleotidesQuestion 1 of 202. What is the general formula for carbohydrates?Cx(H2O)y(CH₂O)nC6H12O6CxHyOzQuestion 2 of 203. Which type of carbohydrate consists of a single sugar unit?DisaccharidePolysaccharideMonosaccharideOligosaccharideQuestion 3 of 204. Which monosaccharide is the most important fuel in living cells?FructoseGalactoseGlucoseRiboseQuestion 4 of 205. What type of bond forms between two monosaccharides to create a disaccharide?Peptide bondGlycosidic bondHydrogen bondDisulphide bondQuestion 5 of 206. Which disaccharide is a non-reducing sugar?MaltoseLactoseSucroseGlucoseQuestion 6 of 207. What is the main storage polysaccharide in plants?GlycogenCelluloseStarchChitinQuestion 7 of 208. Which polysaccharide forms the cell walls in plant cells?StarchGlycogenCelluloseHyaluronic acidQuestion 8 of 209. What is the primary function of carbohydrates in living organisms?Structural supportEnergy supply for metabolismGenetic information storageCatalysis of reactionsQuestion 9 of 2010. What is the hydrogen to oxygen ratio in lipids compared to carbohydrates?Equal to 2:1Less than 2:1Greater than 2:1VariableQuestion 10 of 2011. Which of the following is an example of a saturated fatty acid?Oleic acidLinoleic acidPalmitic acidArachidonic acidQuestion 11 of 2012. What are simple lipids composed of?Fatty acids and phosphateEsters of fatty acids with alcoholsFatty acids and sugarsFatty acids and nitrogenous basesQuestion 12 of 2013. Which type of lipid acts as an insulator in subcutaneous tissue?PhospholipidsSterolsFatsWaxesQuestion 13 of 2014. What is the main component of waxes?Esters of fatty acids with glycerolEsters of long-chain fatty acids with long-chain alcoholsFatty acids with phosphate groupsSteroid nucleusQuestion 14 of 2015. Which lipid is widely distributed in animal cells, particularly in nervous tissue?PhospholipidCholesterolTriglycerideGlycolipidQuestion 15 of 2016. What is the primary role of phospholipids in cells?Energy storageFormation of cell membraneHormone synthesisInsulationQuestion 16 of 2017. What are proteins primarily composed of?NucleotidesAmino acidsMonosaccharidesFatty acidsQuestion 17 of 2018. What type of bond links amino acids in a protein?Glycosidic bondPeptide bondHydrogen bondPhosphodiester bondQuestion 18 of 2019. Which protein structure involves the linear sequence of amino acids?Secondary structureTertiary structurePrimary structureQuaternary structureQuestion 19 of 2020. Which protein structure is characterized by a spiral helix?Primary structureSecondary structureTertiary structureQuaternary structureQuestion 20 of 20 Loading...
Leave a Reply