Many elements are found in living organisms either free or in the form of compounds. Which one of the following is not found in living organisms?
| 1. | Silicon | 2. | Magnesium |
| 3. | Iron | 4. | Sodium |
The four elements making 99 % of living system are :
1. CHOS
2. CHOP
3. CHON
4. CNOP
Upon complete burning of the tissue, all the carbon compounds are oxidized to:
| 1. | Gaseous form (NH3, CO2) |
| 2. | Gaseous form (CO2, water vapour) |
| 3. | Solid form (CO2, water vapour) |
| 4. | Liquid form (CH4, CO2) |
Which of the following organic compounds is the main constituent of Lecithin?
| 1. | Arachidonic acid | 2. | Phospholipid |
| 3. | Cholesterol | 4. | Phosphoprotein |
Which of the following is true about compounds present in acid insoluble pool?
| 1. | They have molecular weight ranging from 10,000 Daltons and above (except in lipids) |
| 2. | They are called as Macromolecules |
| 3. | They are called as Biomacromolecules |
| 4. | All of the above |
Which of the following is not a polymeric substance?
| 1. | Carbohydrates | 2. | Lipids |
| 3. | Nucleic Acids | 4. | Proteins |