Entry Test MCQ :: Biological Molecules
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11. |
Which statement is true about an aqueous medium: |
A. |
Ionic as well as non ionic substance in aqueous media retains their identity. |
B. |
Enzymes can not perform catalysis reaction in this medium. |
C. |
Ions and molecules move randomly thus are in more favorable state to react with other molecules and ions. |
D. |
It is less favorable media for chemical reactions. |
Answer: Option C
Explanation:
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12. |
Which of the following substance is most favorable to form structural component of biological membranes? |
A. |
Hydrophilic Carbohydrates |
B. |
Hydrophobic fats. |
C. |
Both a and b |
D. |
None of these |
Answer: Option B
Explanation:
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13. |
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 |
Answer: Option B
Explanation:
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14. |
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 |
Answer: Option B
Explanation:
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15. |
Specific heat of vaporization of water is: |
A. |
574 Kcal/kg |
B. |
674 Kcal/kg |
C. |
774 Kcal/kg |
D. |
874 Kcal/kg |
Answer: Option A
Explanation:
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16. |
A complex substance which on hydrolysis yields polyhydroxy aldehyde or ketone subunits is called: |
A. |
Lipid |
B. |
Carbohydrate |
C. |
Protein |
D. |
Carotein |
Answer: Option B
Explanation:
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17. |
Cn(H2O)n. is a general formula of : |
A. |
Monosaccharides |
B. |
Oligosaccharides |
C. |
Ploysacharides |
D. |
Carbohydrates |
Answer: Option A
Explanation:
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18. |
Which of the statement is not true for compounds like glycoprotein and glycolipids? |
A. |
They are conjugated molecules of carbohydrates |
B. |
Both have role in the extra cellular matrix of animals and bacterial cell wall |
C. |
They are components of biological membranes. |
D. |
Both are produced and secreted by endoplasmic reticulum |
Answer: Option D
Explanation:
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19. |
Which one are most complex sugar: |
A. |
Monosaccharides |
B. |
Oligosaccharides |
C. |
Polysaccharides |
D. |
None of these |
Answer: Option C
Explanation:
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20. |
Which of the following carbohydrate is tasteless? |
A. |
Monosaccharide |
B. |
Oligosaccharide |
C. |
Polysaccharide |
D. |
None of these |
Answer: Option C
Explanation:
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