MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Cell Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Carbonic acid and bicarbonate ions buffer which of the following? |
| A. | Cytosol |
| B. | Cytoplasm |
| C. | Blood |
| D. | Lymph |
| Answer» D. Lymph | |
| 2. |
Buffers usually contain ________________ with its conjugate ____________ |
| A. | weak base, base |
| B. | strong base, acid |
| C. | weak acid, base |
| D. | weak acid, acid |
| Answer» D. weak acid, acid | |
| 3. |
Buffers react with _______________ ions. |
| A. | hydrogen, hydroxyl |
| B. | magnesium, calcium |
| C. | potassium |
| D. | sodium |
| Answer» B. magnesium, calcium | |
| 4. |
In presence of an acid, amino group can be ____________ |
| A. | Polarized |
| B. | Washed away |
| C. | Protonated |
| D. | Replaced |
| Answer» D. Replaced | |
| 5. |
What is the concentration of pure water? |
| A. | 55.51 M |
| B. | 25.51 M |
| C. | 55 M |
| D. | 25 M |
| Answer» B. 25.51 M | |
| 6. |
A solution having a pH of 6 has a proton concentration of _______ |
| A. | 10<sup>-6</sup> M |
| B. | 10<sup>6</sup> M |
| C. | 6 M |
| D. | 0.6 M |
| Answer» B. 10<sup>6</sup> M | |
| 7. |
What is the full form of pH? |
| A. | Positive hydrogen |
| B. | Potential Hydrogen |
| C. | Positron |
| D. | Proton of hydrogen |
| Answer» C. Positron | |
| 8. |
Acids that lose a proton easily are weak acids. |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Which of the following is an example of amphoteric molecule? |
| A. | Acetic acid |
| B. | Malic acid |
| C. | Sugars |
| D. | Water |
| Answer» E. | |
| 10. |
Which of the following is released when a Hydrogen atom loses an electron? |
| A. | Nucleus |
| B. | Proton |
| C. | Charge |
| D. | Ion |
| Answer» C. Charge | |