MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Biochemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is not a downstream component? |
| A. | Ras |
| B. | MEK |
| C. | ERK |
| D. | PIP3 |
| Answer» E. | |
| 2. |
Which of the following is involved in proline rich motif binding? |
| A. | SH2 |
| B. | SH3 |
| C. | PTB |
| D. | PH |
| Answer» C. PTB | |
| 3. |
Scaffold protein in insulin signal transduction ___________ |
| A. | KSR |
| B. | IRS-1 |
| C. | MEKK1 |
| D. | AKAP |
| Answer» C. MEKK1 | |
| 4. |
PTB domains bind to ___________ |
| A. | Phosphorylated tyrosine |
| B. | Phosphoryated threonine |
| C. | Phosphorylated serine |
| D. | Phosphorylated cysteine |
| Answer» B. Phosphoryated threonine | |
| 5. |
The specificity of signaling pathways does not include ___________ |
| A. | Migration of signal proteins into membrane rafts |
| B. | Assembly of large multiprotein complexes |
| C. | Phosphorylation of target proteins at Ser, Thr/Tyr residues |
| D. | Flippase-catalyzed movement of phospholipids from the inner to the outer leaflet |
| Answer» E. | |