Confused and have questions? We’ve got answers. With Chegg Study, you can get step-by-step solutions to your questions from an expert in the field. If you rather get 1:1 study help, try 30 minutes of free online tutoring with Chegg Tutors.

Messenger

From Biology-Online Dictionary | Biology-Online Dictionary
Jump to: navigation, search

messenger

1. That which carries a message.

2. Having message-carrying properties.

first messenger, a hormone that binds to a receptor on the surface cell and, in so doing, communicates with intracellular metabolic processes.

second messenger, an intermediary molecule that is generated as a consequence of hormone-receptor interaction; e.g., see adenosine 3',5'-cyclic monophosphate; guanosine 3',5'-cyclic monophosphate; calcium; inositide.