AP Cell Communication

Front

What is cell communication?

Back

Cell communication refers to the process by which cells send and receive signals to coordinate their functions and activities.

Front

What is a ligand?

Back

A ligand is a signaling molecule that binds to a receptor to initiate a cellular response.

Front

What is a receptor in cell communication?

Back

A receptor is a protein on the cell surface or inside the cell that binds to a specific ligand, triggering a response.

Front

What is apoptosis?

Back

Apoptosis is the process of programmed cell death that occurs in multicellular organisms.

Front

What is the role of protein kinases in cell signaling?

Back

Protein kinases are enzymes that transfer phosphate groups from ATP to specific proteins, activating or deactivating them.

Front

What is the significance of cell signaling in multicellular organisms?

Back

Cell signaling is crucial for coordinating activities among cells, allowing for processes like growth, immune responses, and tissue repair.

Front

What does it mean for a cell to 'bleb'?

Back

Bleb formation is a process during apoptosis where the cell membrane bulges out, indicating the cell is undergoing programmed death.

Front

What is the difference between autocrine and paracrine signaling?

Back

Autocrine signaling occurs when a cell targets itself, while paracrine signaling involves a cell communicating with nearby cells.

Front

What is the function of phosphatases in cell signaling?

Back

Phosphatases are enzymes that remove phosphate groups from proteins, often reversing the action of protein kinases.

Front

Can different cells respond differently to the same signal?

Back

Yes, different cells can have different responses to the same signal due to variations in receptor types and intracellular pathways.