Everyday Science MCQs

5120 MCQs  (Page 85 of 512)

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Which one is the basic element of organic compounds _________________?
A. Oxygen
B. Hydrogen
C. Sulphur
D. Carbon
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Reactions in which simple substances are combined to form complex substances are called_____________?
A. Metabolic reactions
B. Catabolic reactions
C. Anabolic reactions
D. None of these
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Which chemical component has the same % in bacterial as well as the mammalian cell_____________?
A. Water
B. Carbohydrate
C. Proteins
D. Lipids
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The branch of biology which deals with the study of chemical compounds and the chemical processes in the fliving organisms is called_________________?
A. Chemistry
B. Biochemistry
C. Molocular biology
D. Both a and b
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Which chemical component has the greatest contribution in the total mammalian cell weight__________?
A. Proteins
B. Carbohydrate
C. Lipids
D. Water
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Which one is an organic compound_____________?
A. Co2
B. Water
C. Lipids
D. Hci
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Carbon atom is_____________?
A. Monovalent
B. Divalent
C. Trivalent
D. Tetravalent
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The property of water due to which it works as a temperature stabilizer and hence protect living organisms from sudden thermal changes is_______________?
A. High specific heat of vaporization
B. High specific heat capacity
C. Its dipole nature
D. Its liquid state
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The number of calories required to raise the temperature of 1g of water from 15 to 16?C is called___________?
A. Specific heat of vaporization
B. Specific heat capacity
C. Caloric heat
D. Both a and c
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The one which is present in all living things is ___________?
A. Cell nucleus
B. Dna or rna
C. Cell membrane
D. Vacuole
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Word of the Day
18 Jul
Proactive
(of a person or action) creating or controlling a situation rather than just responding to it after it has happened.
فعال، پیش قدمی کے ذریعے صورتحال پر قابو پانیوالا

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