Question

Which of the following act as a local messenger?

• A. Carrier protein
• B. Glycoprotein
• C. Phospholipid
• D. Glycolipid

Answer 1

The correct option is A Carrier protein

Messenger proteins (or signaling proteins) carry messages or signals. They provide a means by which cells in one part of the body communicate with cells in another location. In some cases, these proteins can carry a signal from one cellular location to another. The signals can trigger/modulate the immune response, promote cell development/differentiation, alter cell metabolism, or stimulate cell growth. Carrier proteins help specific molecules or ions pass through the plasma membrane. They do not extend through the membrane. They bond and drag the molecules through the bilipid layer and release them on the opposite side.

Therefore, the correct answer is option A.