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. |
The Etr1 gene in plants encodes for ___________________ |
| A. | ethylene gas |
| B. | ethylene gas receptor |
| C. | hydrogen sulfide |
| D. | hydrogen sulfide receptor |
| Answer» C. hydrogen sulfide | |
| 2. |
How many subunits does the Ras protein contain? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» B. 2 | |
| 3. |
Diabetes Mellitus type II is caused due __________________________ |
| A. | inability to produce insulin |
| B. | insulin resistance |
| C. | low glucose levels |
| D. | low lactose levels |
| Answer» C. low glucose levels | |
| 4. |
Diabetes Mellitus is caused by defects in insulin signaling. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
Which of the following synthesis is decreased (or stopped) when the blood glucose levels are high? |
| A. | gluconeogenesis |
| B. | triglyceride |
| C. | glycogen |
| D. | glucagon |
| Answer» B. triglyceride | |
| 6. |
Which cells release insulin when glucose levels elevate in the body? |
| A. | zeta cells |
| B. | alpha cells |
| C. | gamma cells |
| D. | beta cells |
| Answer» E. | |
| 7. |
Bringing 2 kinase domains in close contact allows for ___________________ |
| A. | trans-autophosphorylation |
| B. | cis-autophosphorylation |
| C. | inactivation of one domain |
| D. | inactivation of both domains |
| Answer» B. cis-autophosphorylation | |
| 8. |
The cytoplasmic protein-tyrosine kinases are activated indirectly by the extracellular signals. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
How many types of protein-tyrosine kinases are there? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 10. |
The Protein-tyrosine kinases phosphorylate the ______________ residues. |
| A. | adenine |
| B. | cytosine |
| C. | tyrosine |
| D. | chymosin |
| Answer» D. chymosin | |