Choose the correct match from the following.

Options

A. collagen - most abundant protein in the biosphere
B. GLUT-4 - enables glutamine transport into cells
C. receptor - proteins that receive smell and taste
D. trypsin - hormone used during digestion of food

Answer

To solve the question of matching the statements correctly, we will analyze each option provided and determine whether the matches are correct or incorrect.

### Step-by-Step Solution:

1. **Analyze the first statement: Collagen**
- The statement claims that collagen is the most abundant protein in the biosphere.
- **Evaluation**: This is incorrect. Collagen is indeed the most abundant protein in the animal kingdom, but in the biosphere, the most abundant protein is Rubisco (Ribulose-1,5-bisphosphate carboxylase/oxygenase), which is involved in photosynthesis in plants.

2. **Analyze the second statement: Glut pore**
- The statement claims that a glut pore enables glutamine transport into the cell.
- **Evaluation**: This is also incorrect. Glut pores (or GLUT transporters) primarily facilitate the transport of glucose into the cells, not glutamine.

3. **Analyze the third statement: Receptors**
- The statement claims that receptors are proteins that receive smell and taste.
- **Evaluation**: This is correct. Receptors, such as olfactory receptors for smell and taste receptors, are indeed proteins that play a crucial role in detecting these senses.

4. **Analyze the fourth statement: Trypsin**
- The statement claims that trypsin is a hormone used during the digestion of food.
- **Evaluation**: This is incorrect. Trypsin is an enzyme that helps in the digestion of proteins, not a hormone.

### Conclusion:
After evaluating all the statements, the only correct match is the third statement regarding receptors. Therefore, the correct option is **C**.

### Final Answer:
The correct match is **C: Receptors are proteins that receive smell and taste.**

---