CHATROOM

Entry Test MCQ :: Biological Molecules P2



NOTE :ANSWERS ARE PRESENT AFTER 5 MCQs
21. Which of the following carbohydrate can not be hydrolysed?
A.MonosaccharideB.Oligosaccharide
C.PolysaccharideD.None of these


22. Ribose is an example of
A.TriosesB.Tetroses
C.PentoseD.Hexose


23. % of Glucose normally present in our blood is
A.0.80%B.0.08%
C.1.80%D.8%


24. Starch cellulose and glaycogen yield ________ on complete hydrolysis.
A.MaltoseB.Sucrose
C.FructoseD.Glucose


25. For the synthesis of 10g of glucose ______ of energy is required:
A.717.6 KcalB.727 Kcal
C.737 KcalD.747 Kcal
ANSWERS OF ABOVE Five MCQs
21.(A) 22.(C) 23.(B) 24.(D) 25.(A) 


26. Which one is abundant in animals?
A.StarchB.Glycogen
C.CelluloseD.None of these


27. Which one is soluble in hot water?
A.StarchB.Glycogen
C.AmyloseD.Amylopectin.


28. The covalent bond between two monosaccharide subunits is called:
A.Phosphodiester bondB.Peptide bond
C.Glycosidic BondD.Ionic bond


29. Which one gives blue colour with iodine?
A.StarchB.Glycogen
C.CelluloseD.Polysaccharide


30. Which of the following polysaccharide is called animal starch?
A.StarchB.Glycogen
C.CelluloseD.None of these

ANSWERS OF ABOVE Five MCQs
26.(B) 27.(C) 28.(C) 29.(A) 30.(B)
31. _________ is example of pure form of cellulose
A.SilkB.Wool
C.CottonD.Paper


32. Lipids are soluble in which of the following :
A.WaterB.Ether
C.All solventsD.Not in any of the above


33. Lipid molecules can store double amount of energy as compared to same amount of carbohydrate because of high number of
A.C-C bondsB.C-H bonds
C.C-N bondsD.C-O bonds


34. A compound produced as a result of a chemical reaction of an alcohol with an acid in which water molecule is released is called:
A.MonosaccharideB.Fatty acid
C.Neutral lipidD.Nucleic acid


35. Fatty acids containing 18 C atoms and a single double bond is
A.Saturated Fatty acidB.Unsaturated fatty acid
C.Oleic AcidD.Plamitic acid

ANSWERS OF ABOVE Five MCQs
31.(C) 32.(B) 33.(B) 34.(C) 35.(C)

36. Which one the following fatty acid is more soluble in an organic solvent and has higher melting point?
A.Acetic acidB.Butyric acid
C.Palmitic acidD.All have same


37. Which of the following statement is incorrect5 for fats containing unsaturated fatty acid?
A.They contain double bondB.They are usually solid at room temperature
C.They are lighter than waterD.Their specific gravity is less than 1


38. Animals obtain carbohydrates mainly from
A.GlucoseB.Starch
C.SucroseD.Glycogen


39. Peptide bond is:
A.C-N linkB.C- O lind
C.N-H linkD.C-H link


40. Chemical component/s less in eukaryotic cell as compared to prokaryotic cell is / are (i) lipids (ii) carbodydrates (iii) proteins (iv) DNA
A.i & iiB.iii & iv
C.i ii iii & ivD.iv only
ANSWERS OF ABOVE Five MCQs36.(c) 37.(b) 38.(b) 39.(a) 40.(d)






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