ONLINE TEST - Biomolecules - EM

This Quiz is a Simple test for +2 Science group students which contain Questions asked from March - 2006 to March - 2017 in Biomolecules. Just participate in it and test your skill.

1. A dipeptide does not have
two peptide units
portions of two amino acids
an amino / amido group
salt like structure


2. Glucose is not oxidised to gluconic acid by
Br2/H2O
Fehling solutions
Tollen’s reagent
Conc. HNO3


3. Glucose reacts with acetic anhydride in the presence of pyridine to give
monoacetate
diacetate
penta acetate
no reaction


4. Important constituent of cell wall is
Lipid
Cellulose
Protein
Vitamin


5. Inversion of sucrose refers to
oxidation of sucrose
reduction of sucrose
sucrose to glucose and fructose
polymerisation of sucrose


6. Invert sugar is a mixture of equal amount of
D (+) glucose and sucrose
D (–) fructose and sucrose
D (+) glucose and D (–) fructose
sucrose and maltose


7. __________ is involved in the process of blood coagulation.
Fats and oils
Cephalin
Glycolipids
Lecithins


8. Mixture of equal molecules of D (+) glucose and D (–) fructose is called as
Fruit sugar
Invert sugar
Cane sugar
Non-sugar


9. Proteins are
polypeptides
polyacids
polyphenols
polyesters


10. Sorbitol and Mannitol are
isomers
polymers
epimers
dimmers


11. Sucrose contains glucose and fructose linked by
C1 – C1
C1 – C2
C1 – C4
C1 – C6


12. The amino acid without chiral carbon is
Alanine
Glycine
Proline
Thyrosine


13. The building block of proteins are
α - hydroxy acids
α - amino acids
β - hydroxy acids
β - amino acids


14. The most abundant carbohydrate is
glucose
fructose
starch
cellulose


15. The optically inactive amino acid is
Glysine
Alanine
proline
phenyl alanine


16. The precipitation of protein is called
peptisation
denaturation
renaturation
none of these


17. The reducing sugar (of / among the following) is
sucrose
cellulose
glucose
starch


18. Ultimate product of hydrolysis of protein is
aniline
aliphatic acid
amino acid
aromatic acid


19. When starch is heated to 200°C – 250°C, the product is
dextrin
caramel
barley sugar
cellulose


20. Which is not true of amino acid?
It forms Zwitter ion
Has Isoelectric point
Dual behavior
insoluble in NaOH solution


21. An example for reducing disaccharide is
Glucose
Fructose
Sucrose
Lactose


22. __________occur in the white matter of the brain and of all nervous tissue.
Lacithin
Cephalin
Galactolipids
Amino acid


23. Cephalins have been implicated in the process of
Metabolism
Organisation of the body
Blood purification
Blood coagulation


24. Alkaline hydrolysis of cooking oil gives
soap
glycerol
fatty acid
both (a) and (b)


25. An example of a fatty acid obtained from a cooking oil is
acetic acid
stearic acid
benzoic acid
oxalic acid


26. Denaturation does not involve
breaking up of H– bonding in proteins
the loss of biological action of enzyme
the loss of secondary structure
loss of primary structure of proteins


27. Hair and nail contains
cellulose
fat
keratin
lipid


28. Proteins are not sensitive to
acids
bases
elevated temperature
water


29. Specificity of enzyme is due to
the sequence of amino acids
secondary structure
tertiary structure
all of the above


30. Sucrose is not
a di saccharide
a non-reducing sugar
hydrolysed to only glucose
hydrolysed to glucose & fructose


31. Two amino acids say A, B- react to give
two dipeptides
three dipeptides
four dipeptides
only one


32. Which among the following contains triglyceride?
Wax
Cooking oil
Essential oil
Albumin


33. Which contains a long chain ester?
wax
cooking oil
turpentine oil
cellulose


34. Which is a mono saccharide among the following
Sucrose
Cellulose
Maltose
Glucose


35. Which is not a saturated fatty acid?
Palmitic acid
Stearic acid
Oleic acid
Glyceric acid


36. Which of the following contains a lipid?
starch
mineral oil
edible oil
peptide


37. Glucose forms __________with acetic anhydride and sodium acetate
di-acetate
tetra-acetate
penta-acetate
hexa-acetate


38. __________ act as protective agent on the surface of animals and plants.
Carbohydrates
Vitamins
Nucleic acids
Waxes


39. Which one of the following is a polysaccharide?
Sucrose
Cellulose
Maltose
Raffinose


40. When cellulose is boiled with dilute H2SO4 it gives
D-glucose
D-fructose
Dextrine
Starch


41. The number of secondary alcohol present in fructose is
4
2
0
3


42. What are the products obtained during hydrolysis of Raffinose?
Sucrose, Fructose, Lactose
Glucose, Fructose, Galactose
Fructose, Lactose, Galactose
Maltose, Lactose, Sucrose


43. Raffinose on hydrolysis gives
two monosaccharides
three monosaccharides
one disaccharide and one monosaccharide
two monosaccharides and one disaccharide

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