Basic Science : Structure Of The Cell QUESTIONS AND ANSWERS :: part8 : 21 to 25
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
21.Property of adhesion of water molecules to cell walls is due to |
| Hydrogen bonds |
| Dipole nature |
| Ionisation of water |
| All the above |
22.Chitin is strengthened by |
| Calcium phosphate |
| Magnesium phosphate |
| Calcium carbonate |
| Magnesium carbonate |
23.Nonmineral essential elements are |
| Carbon, Hydrogen and Oxygen |
| Hydrogen, Nitrogen and Sulphur |
| Hydrogen, Nitrogen and Fluorine |
| Chlorine, Fluorine and Nitrogen |
24.Water has high specific heat due to |
| Its dipole nature |
| Smaller angle between hydrogen atoms and oxygen atom |
| Hydrogen bonds amongst molecules |
| All the above |
25.Big four elements are |
| Carbon, Hydrogen, Oxygen and Sulphur |
| Carbon, Oxygen, Sulphur and Phosphorus |
| Carbon, Nitrogen, Sulphur and Phosphorus |
| Carbon, Hydrogen, Oxygen and Nitrogen |
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