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Biology Class 11 Chapter 2 - Biological Molecules - Part 20
1.
The breakdown of large complex molecule into small simple one is called anabolism.
a) True
b) False
2.
Due to polarity of water, it is an excellent solvent for polar substance.
a) True
b) False
3.
In cell all chemical reactions are catalyzed by enzymes which work in dry environment.
a) True
b) False
4.
Energy absorbed to change water from liquid to gas is called heat of vaporization.
a) False
b) True
5.
The sources of carbohydrates are green plants. These are primary product of photosynthesis.
a) True
b) False
6.
Glyceraldehydes and dihydroxyacetone, intermediate in respiration.
a) False
b) True
7.
Thymine is found in both DNA and RNA.
a) True
b) False
8.
Triglycerides are major energy storage molecule in the body.
a) True
b) False
9.
DNA has a double helix structure but RNA does not have a double helix structure.
a) False
b) True
10.
When a covalent bond forms neither of combining atoms loses or gains electrodes.
a) True
b) False
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