Entry Test MCQ :: Biological Molecules

1.  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

2.  Which one is an organic compound?
A. CO2 B. Water
C. Lipids D. HCI

3.  Which chemical component has the same % in bacterial as well as the mammalian cell?
A. Water B. Carbohydrate
C. Proteins D. Lipids

4.  Which chemical component has the greatest contribution in the total mammalian cell weight?
A. Proteins B. Carbohydrate
C. Lipids D. Water

5.  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

6.  Which one is the basic element of organic compounds ?
A. Oxygen B. Hydrogen
C. Sulphur D. Carbon

7.  The bond formed when two or more atoms complete their electron shells by sharing electrons is called:
A. Ionic bond B. Hydrogen bond
C. Covalent bond D. Electrovalent bond

8.  Carbon atom is
A. Monovalent B. Divalent
C. Trivalent D. Tetravalent

9.  Which bond provides stability to complex carbohydrate molecules?
A. C-H B. C-O
C. C-C D. C-N

10.  % of water in brain cells is
A. 20% B. 80%
C. 85% D. 90%

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