Entry Test MCQ :: Biological Molecules
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| 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 |
Answer: Option B
Explanation:
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| 2. |
Which one is an organic compound? |
Answer: Option C
Explanation:
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| 3. |
Which chemical component has the same % in bacterial as well as the mammalian cell? |
| A. |
Water |
B. |
Carbohydrate |
| C. |
Proteins |
D. |
Lipids |
Answer: Option A
Explanation:
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| 4. |
Which chemical component has the greatest contribution in the total mammalian cell weight? |
| A. |
Proteins |
B. |
Carbohydrate |
| C. |
Lipids |
D. |
Water |
Answer: Option D
Explanation:
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| 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 |
Answer: Option C
Explanation:
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| 6. |
Which one is the basic element of organic compounds ? |
| A. |
Oxygen |
B. |
Hydrogen |
| C. |
Sulphur |
D. |
Carbon |
Answer: Option D
Explanation:
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| 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 |
Answer: Option C
Explanation:
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| 8. |
Carbon atom is |
| A. |
Monovalent |
B. |
Divalent |
| C. |
Trivalent |
D. |
Tetravalent |
Answer: Option D
Explanation:
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| 9. |
Which bond provides stability to complex carbohydrate molecules? |
Answer: Option C
Explanation:
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| 10. |
% of water in brain cells is |
Answer: Option C
Explanation:
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