Cell Communication/Feedback Loops (gen)

Front

What is the order of steps for a signal transduction pathway?

Back

Reception -> Transduction -> Response

Front

What is an example of direct cell communication?

Back

White blood cells bumping into each other sharing antigen info.

Front

What is a negative feedback loop?

Back

A process that counteracts a change to maintain homeostasis, such as maintaining body temperature.

Front

Where does the ligand bind to initiate signal transduction?

Back

The receptor.

Front

What are the two types of feedback systems that help organisms maintain homeostasis?

Back

Positive and negative feedback systems.

Front

Define signal transduction.

Back

The process by which a cell responds to external signals through a series of molecular events.

Front

What role do receptors play in cell communication?

Back

Receptors bind to ligands and initiate signal transduction pathways.

Front

What is the difference between positive and negative feedback loops?

Back

Positive feedback amplifies a response, while negative feedback reduces it to maintain stability.

Front

Give an example of a positive feedback loop in biological systems.

Back

Childbirth, where the release of oxytocin increases contractions.

Front

What is homeostasis?

Back

The maintenance of a stable internal environment in an organism.