Biology 11 Chapter - 2
Biological Molecules - 24
1.
The example of left-handed sugars is?
a) Both are incorrect
b) Tagatose
c) Suralose
d) Both are correct
2.
Left-handed sugar cannot be metabolized by?
a) Right-handed enzyme
b) Both are wrong
c) Both are correct
d) Left-handed enzyme
3.
Left-handed sugar means?
a) laboratory chemical sugar
b) Laboratory manufactured sugar
c) Natural sugar
d) Monosaccharides
4.
For the metabolism of left-handed sugar, the enzyme must be?
a) Left-handed
b) Weak
c) Right-handed
d) Strong
5.
Which one of the following is the main structural component of cell?
a) Proteins
b) Lipids
c) Nucleic acid
d) Carbohydrates
6.
All proteins are consists of?
a) Carbon , hydrogen , oxygen , nitrogen
b) Carbon , hydrogen , oxygen , lithium
c) Carbon , hydrogen , oxygen , potassium
d) Carbon , hydrogen , oxygen , manganese
7.
Which one of the following element is not found in protein?
a) Fe (ferric)
b) I (iodine)
c) K (potassium)
d) Mg (magnesium)
8.
The building blocks of proteins are?
a) Nucleic acid
b) Amino acids
c) Sulphuric acid
d) Hydrochloric acid
9.
The second most abundant component of cell is?
a) Nucleic acid
b) Lipids
c) Protein
d) Carbohydrates
10.
The polypeptide chain of amino acids is called?
a) Lipids
b) Carbohydrates
c) Nucleic acid
d) Proteins
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