PrepBharat

1. Which elements are abundantly found in living organism with comparison to earth’s crust?
a) Carbon
b) Hydrogen
c) Oxygen
d) All of these

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2. To analyse the chemical composition of living tissue we solubilize them in
a) \[HNO_{3}\]
b) HCl
c) \[CF_{3}COOH\]
d) \[CCI_{3}COOH\]

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3. The percentage of oxygen in human body is
a) 65%
b) 46.6%
c) 18.5%
d) 3.3%

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4.

Fill in the blanks in (1) and (2) in the above flowchart.
a) a → greater than 1000 Dalton
b → Nucleotide
b) a → 18–800 Da
b → Nucleic acid
c) a → greater than 10,000 Da
b → Oligosaccharides
d) a → greater than 1000 Dalton
b → Nucleoside

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5. All the carbon compounds that we get from the living tissues can be called
a) Bioresource
b) Bioinformatics
c) Biowar
d) Biomolecules

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6. Select the incorrect compounds that we get from living tissues can be called:
a) Elemental analysis of living tissues gives elemental composition of living tissue.
b) Analysis of chemical compound of living tissue gives idea of organic and inorganic constituent of living tissue.
c) Weight of small amount of living fresh tissue is known as wet weight.
d) Acid soluble pool contain lipids, nucleic acid, polysaccharide only.

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7. The biomolecule whose weight is less than____ dalton (Da) is referred to as biomicromolecule.
a) 800
b) 18
c) 1000
d) 10,000

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8. Which of the following is not a macromolecule?
a) Nucleic acid
b) Polysaccharides
c) Lipids
d) Proteins

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9. Lipids are extracted with acid insoluble fraction because
a) Its molecular weight is less than 800 Da
b) It form vesicle or micelle which are not water soluble
c) It is a polymer
d) It is not a polymer

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10. Select the incorrect matching for component percentage in living cell:
a) Water – 70 to 90%
b) Proteins – 10 to 15%
c) Carbohydrate – 2%
d) Nucleic Acid – 5 to 7%

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