Biology 11 Chapter - 2
Biological Molecules - 13
1.
Which statement is not correct for monosaccharide?
a) They are crystalline
b) Sweet in taste
c) Hydrolyzed into simpler sugar
d) Soluble in water
2.
Which group attached to all the carbon except those with double bonded oxygen?
a) Carbonyl
b) Hydroxyl (OH)
c) Halogen group
d) Aldehyde
3.
The combination of sugar with keto group is known as?
a) Hydro-sugar
b) Malt-sugar
c) Aldo-sugar
d) Keto-sugar
4.
The ketonic form of a sugar is called?
a) Glyceraldehydes
b) Aldehyde
c) Dihydroxyaccetone
d) Acetone
5.
Which one of the following contains 3-carbons?
a) Pentoses
b) Trioses
c) Tetroses
d) Hexoses
6.
The general formula of trioses is?
a) C
3
H
6
O
3
b) C
2
H
4
O
2
c) C
4
H
8
O
4
d) C
8
H
16
O
8
7.
Which one of the following is the example of trioses?
a) Glyceraldehydes
b) Ribose
c) Xylose
d) Erythrose
8.
The molecular formula of pentose is?
a) C
4
H
8
O
4
b) C
2
H
4
O
2
c) C
5
H
10
O
5
d) C
8
H
16
O
8
9.
Which one example is not correct for pentose?
a) Ribulose
b) Ribose
c) Deoxyribose
d) Glucose
10.
How many trioses are intermediate in respiration & photosynthesis?
a) Six
b) Two
c) Four
d) Eight
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