Question

Match the protein given in column I with its function given in column II and choose the right option.

• A. A – IV; B – I; C – II; D – III
• B. A – III; B – IV; C – I; D – II
• C. A – III; B – IV; C – II; D – I
• D. A – II; B – IV; C – I; D – III

Answer 1

The correct option is C A – III; B – IV; C – II; D – I

1. Collagen is a class of extracellular proteins abundant in higher animals. They are specially found in the skin, bone, cartilage, tendon, and teeth, forming strong insoluble fibres. It serves as connective tissue between cells.
2. Trypsin is an enzyme found in the digestive system of many vertebrates, where it hydrolyses proteins. It is produced in the pancreas as the inactive protease trypsinogen.
3. Insulin is a pancreatic hormone which regulates the metabolism of carbohydrates and fats by promoting the absorption of glucose from the blood to skeletal muscles and fat tissue and by causing fat to be stored rather than used for energy.
4. GLUT–4 (glucose transporter type 4), is a protein in humans that is encoded by the GLUT-4 gene. GLUT-4 is the insulin-regulated glucose transporter found primarily in adipose tissues and striated muscle (skeletal and cardiac). The first evidence for this distinct glucose transport protein was provided by David James in 1988.