MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
2% of the total cellular mass is _____ |
| A. | proteins |
| B. | lipids |
| C. | ions |
| D. | nucleic acids |
| Answer» C. ions | |
| 2. |
What percentage of the total cellular mass is carbohydrates? |
| A. | 3 |
| B. | 2 |
| C. | 1 |
| D. | 10 |
| Answer» B. 2 | |
| 3. |
10 – 15% of the total cellular mass is ______ |
| A. | nucleic acids |
| B. | water |
| C. | proteins |
| D. | carbohydrates |
| Answer» D. carbohydrates | |
| 4. |
What percentage of the total cellular mass is nucleic acids? |
| A. | 1 – 2 |
| B. | 50 – 60 |
| C. | 5 – 7 |
| D. | 20 – 30 |
| Answer» D. 20 – 30 | |
| 5. |
What percentage of the total cellular mass is water? |
| A. | 5 – 7 |
| B. | 50 – 60 |
| C. | 10 – 15 |
| D. | 70 – 90 |
| Answer» E. | |
| 6. |
Lipids are not macromolecules as their weight does not exceed 800 Da. True or false? |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
When tissue is homogenized, the disrupted cell membrane separates in the form of _____ |
| A. | solid aggregates |
| B. | lipoprotein complexes |
| C. | vesicles |
| D. | lipopolysaccharides |
| Answer» D. lipopolysaccharides | |
| 8. |
The molecular weight of lipids does not exceed _____ |
| A. | 5000 Da |
| B. | 1000 Da |
| C. | 10,000 Da |
| D. | 800 Da |
| Answer» E. | |
| 9. |
Which of these substances is not polymeric? |
| A. | Lipids |
| B. | Nucleic acids |
| C. | Proteins |
| D. | Polysaccharides |
| Answer» B. Nucleic acids | |
| 10. |
What is the maximum weight of biomolecules? |
| A. | 800 Da |
| B. | 10,000 Da |
| C. | 1000 Da |
| D. | 5000 Da |
| Answer» D. 5000 Da | |
| 11. |
Micro-molecules of the tissue are also known as ______ |
| A. | bio compounds |
| B. | biomolecules |
| C. | biomacromolecules |
| D. | nanoparticles |
| Answer» C. biomacromolecules | |
| 12. |
Which of these compounds do not have a molecular weight greater than 10,000 Da? |
| A. | Lipids |
| B. | Proteins |
| C. | Polysaccharides |
| D. | Nucleic acids |
| Answer» B. Proteins | |
| 13. |
Which of these compounds is not present in the acid insoluble fraction of homogenized tissue? |
| A. | Proteins |
| B. | Fats |
| C. | Vitamins |
| D. | Nucleic acids |
| Answer» D. Nucleic acids | |
| 14. |
What is the approximate weight of compounds found in acid soluble pool of grinded tissue? |
| A. | 1,000 – 10,000 Da |
| B. | 2 – 30 Da |
| C. | 18 – 800 Da |
| D. | 6,000 – 50,000 Da |
| Answer» D. 6,000 – 50,000 Da | |
| 15. |
What is the unit of measurement of weight of biomacromolecules? |
| A. | Nanometer |
| B. | Farad |
| C. | Angstrom |
| D. | Dalton |
| Answer» E. | |