MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
How many carbon atoms are there in palmitic acid? |
| A. | 16 |
| B. | 18 |
| C. | 20 |
| D. | 22 |
| Answer» B. 18 | |
| 2. |
Lipids are generally water-soluble. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Which of the following is a basic amino acid? |
| A. | Tryptophan |
| B. | Tyrosine |
| C. | Lysine |
| D. | Glutamic acid |
| Answer» D. Glutamic acid | |
| 4. |
Based on which of the following there are different kinds of amino acids? |
| A. | Nature of R group |
| B. | Nature of amino group |
| C. | Nature of carboxyl group |
| D. | Nature of hydrogen |
| Answer» B. Nature of amino group | |
| 5. |
What is the other name of -amino acids? |
| A. | Substituted methanes |
| B. | Substituted alcohols |
| C. | Substituted alkyl halides |
| D. | Substituted carboxylic acids |
| Answer» B. Substituted alcohols | |
| 6. |
Amino acids contain an amino group and an acidic group at different carbons |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
Why do we use dry weights for the chemical analysis? |
| A. | Because it is vulnerable |
| B. | Because of water leaks everywhere |
| C. | Because water is not absorbed by chemicals |
| D. | Because different organisms have different water-absorbing capacities |
| Answer» E. | |
| 8. |
What is the use of elemental analysis? |
| A. | To add those nutrients in food |
| B. | To find the elemental composition of living tissues |
| C. | To gain confidence |
| D. | To research the unknown |
| Answer» C. To gain confidence | |
| 9. |
What is the percentage weight of carbon in the earth s crust? |
| A. | 0.01 |
| B. | 0.3 |
| C. | 0.03 |
| D. | 0.14 |
| Answer» D. 0.14 | |
| 10. |
What are biomolecules? |
| A. | Molecules of quantum mechanics |
| B. | Molecules of Life |
| C. | Molecules related to string theory |
| D. | It is a molecule |
| Answer» C. Molecules related to string theory | |
| 11. |
Which of the following acids is used for the chemical analysis of living tissues? |
| A. | Trichloroacetic acid |
| B. | Trifluoroacetic acid |
| C. | Tribromoacetic acid |
| D. | Triiodoacetic acid |
| Answer» B. Trifluoroacetic acid | |