Cell Communication

Front

What is cell communication?

Back

Cell communication is the process by which cells send and receive signals to coordinate their activities and respond to their environment.

Front

What is a receptor protein?

Back

A receptor protein is a substance formed of amino acids that binds with a specific molecule, causing the cell to respond.

Front

What is the role of signaling molecules?

Back

Signaling molecules are produced by signaling cells and are detected by target cells to initiate a response.

Front

What does it mean for a solution to be hypotonic?

Back

A hypotonic solution has a lower concentration of solutes compared to another solution, leading to water moving into the cell.

Front

What does it mean for a solution to be hypertonic?

Back

A hypertonic solution has a higher concentration of solutes compared to another solution, causing water to move out of the cell.

Front

How do cells respond to signals?

Back

Cells respond to signals by activating specific pathways, often involving receptor proteins and second messengers.

Front

What is the function of enzymes in cell signaling?

Back

Enzymes in cell signaling can be activated by signals to catalyze reactions that lead to a cellular response.

Front

What is a second messenger?

Back

A second messenger is a molecule generated inside a cell after a signaling molecule binds to a receptor, amplifying the signal.

Front

What is the significance of concentration gradients in cell communication?

Back

Concentration gradients drive the movement of substances across membranes, influencing cell communication and response.

Front

What happens during osmosis?

Back

Osmosis is the movement of water across a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration.