| I: | GLUT-4 | Enables glucose transport out of the cells |
| II: | Collagen | Most abundant protein in animal world |
| III: | RuBisCO | Most abundant protein in the whole of the biosphere |
| 1. | Only I | 2. | Only I and II |
| 3. | Only I and III | 4. | Only II and III |
Quaternary structure is seen in proteins that:
| 1. | act as biochemical catalysts |
| 2. | are embedded within the plasma membrane |
| 3. | are assembly of more than one subunits |
| 4. | do not have any structural role in the cell |
An alpha helix is a:
1. primary structure of a protein
2. secondary structure of a protein
3. tertiary structure of a protein
4. quaternary structure of a protein