Biomolecules  MCQs

MCQs of Biomolecules

Showing 11 to 20 out of 161 Questions
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11.
Which of the following statements is true ?
(a) Enzymes are carbohydrates
(b) Enzymes are not obtained at the end of reaction
(c) Enzymes are obtained in the changed form at the end of reaction
(d) Enzymes are obtained in the original form at the end of reaction
Answer:

Option (d)

12.
Which element is not seen in carbohydrates ?
(a) Oxygen
(b) Nitrogen
(c) Hydrogen
(d) Carbon
Answer:

Option (b)

13.
What are called to chemical compounds present in living systems ?
(a) Steroids
(b) Carotenoids
(c) Biomolecules
(d) Alkaloids
Answer:

Option (c)

14.
Which of the following units are present in α-(+)- lactose ?
(a) β-D-(+)-galactose + α-D-(+)-glucose
(b) β-D-(+)-galactose + β-D-(+)-glucose
(c) α-D-(+)-galactose + α-D-(+)-glucose
(d) α-D-(+)-galactose + β-D-(+)-glucose
Answer:

Option (a)

15.
Chemically what are carbohydrates ?
(a) Polyhydroxy aldehydes
(b) Polyhydroxy ketones
(c) Polyhydroxy esters
(d) Both (A) and (B)
Answer:

Option (d)

16.
Which functional group (s) Is (are) present in carbohydrates ?
(a) Only - OH
(b) Only - CHO
(c) onlyC/\ = O
(d) All of the above
Answer:

Option (d)

17.
What is general formula of carbohydrates ?
(a) CX-1(H2O)y
(b) Cx(H2O)y
(c) Cx(H2O)y+2
(d) Cx(H2)yO
Answer:

Option (b)

18.
Which Carbohydrate belongs to molecular formula 2C3(H2O)3 ?
(a) Starch
(b) Sucrose
(c) Glucose
(d) Cellulose
Answer:

Option (c)

19.
How many molecules of water are joined with 12 atoms of carbon in a molecule of sucrose ?
(a) 12
(b) 11
(c) 6
(d) 10
Answer:

Option (b)

20.
In Greek and Latin sugar means_____and_____respectively.
(a) saccharum and sakcharon
(b) sakcharon and saccharum
(c) saccharin and sucralose
(d) sucrose and saccharin
Answer:

Option (b)

Showing 11 to 20 out of 161 Questions
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