Definition, Meaning & Synonyms
receptor
noun
/rɪˈsɛptər/
Definition
A receptor is a protein molecule that receives and binds to specific substances, usually signaling molecules such as hormones or neurotransmitters, triggering a biological response.
Examples
- The body has different types of receptors to detect pain, temperature, and pressure.
- Insulin receptors help regulate blood sugar levels.
- Neurotransmitters bind to receptors on neurons to transmit signals in the brain.
Meaning
In biological contexts, receptors are crucial for cells to communicate with each other and respond appropriately to environmental stimuli.
Synonyms
- sensor
- receptive organism
- binding site
