Question

Which of the following macromolecules is crucial to the communication system in the body?

• A. Receptors
• B. Enzymes
• C. Carrier proteins
• D. Lipids

Hint:

Receptors play a vital role in signal transduction, allowing cells to communicate with each other in response to external stimuli.

Answer 1

The Correct Option is A

- Receptors are proteins that are essential for communication between cells in the body. They receive signals (e.g., hormones, neurotransmitters) from the outside and transmit them inside the cell to induce a response.
- Enzymes are involved in metabolic reactions but are not directly involved in cellular communication.
- Carrier proteins are important for transporting substances across membranes but don't directly participate in cellular communication.
- Lipids are important for membrane structure but not directly involved in cellular communication.
Thus, the correct answer is (1) Receptors.