EVERYDAY SCIENCE

Detailed explanation-1: -Cell signalling takes place in the following three stages: Binding of the signal molecule to the receptor. Signal transduction, where the chemical signals activate the enzymes. Finally, the response is observed.

Detailed explanation-2: -There are four basic categories of chemical signaling found in multicellular organisms: paracrine signaling, autocrine signaling, endocrine signaling, and signaling by direct contact.

Detailed explanation-3: -The signal transduction pathway has three main steps: Reception: The process by which a cell detects a signal in the environment. Transduction: The process of activating a series of proteins inside the cell from the cell membrane. Response: The change in behavior that occurs in the cell as a result of the signal.

Detailed explanation-4: -There are three main steps in this pathway: signal reception, which is when the target cell receives a signaling molecule; transduction, which is a series of events that converts the signal to something the target cell can respond to; and cellular response, which is when the target cell responds to the signal.

Detailed explanation-5: -Reception: A cell detects a signaling molecule from the outside of the cell. Transduction: When the signaling molecule binds the receptor it changes the receptor protein in some way. Response: Finally, the signal triggers a specific cellular response. 22-Jun-2019