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 correct statements, we will analyze each statement one by one.

### Step 1: Analyze the first statement
- **Statement**: Collagen is the most abundant protein in the biosphere.
- **Analysis**: This statement is incorrect. While collagen is indeed the most abundant protein in the animal kingdom, the most abundant protein in the biosphere as a whole is Rubisco (Ribulose-1,5-bisphosphate carboxylase/oxygenase), which plays a crucial role in the process of photosynthesis in plants.

**Hint**: Remember that biosphere includes all living organisms, not just animals.

### Step 2: Analyze the second statement
- **Statement**: GLUT4 is enabled to transport Glutamine in the cells.
- **Analysis**: This statement is also incorrect. GLUT4 is a glucose transporter protein that facilitates the transport of glucose into cells, especially in response to insulin. It does not transport glutamine.

**Hint**: Focus on the specific function of GLUT4 and its role in glucose metabolism.

### Step 3: Analyze the third statement
- **Statement**: Receptors are proteins that receive smell and taste.
- **Analysis**: This statement is correct. Sensory receptors are indeed proteins that detect and receive signals related to smell (olfaction) and taste (gustation). They play a vital role in our sensory perception.

**Hint**: Consider how sensory perception works and the role of receptors in detecting stimuli.

### Step 4: Analyze the fourth statement
- **Statement**: Trypsin is a hormone used during digestion.
- **Analysis**: This statement is incorrect. Trypsin is not a hormone; it is a digestive enzyme produced in the pancreas that helps in the breakdown of proteins in the small intestine.

**Hint**: Distinguish between enzymes and hormones based on their functions in the body.

### Conclusion
Based on the analysis of each statement, the only correct match is the third statement regarding receptors that receive smell and taste.

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