cell communication quiz

What is the type of organism that lives in colonies?

Unicelluar organisms

How does communication occur between adjacent cells?

Cell membrane and Cell wall modifications

Short distance communication

Same cell types, send local regulators

Long distance

Different cell types, travels long distance to reach target cell

Autocrine

Self signaling

Paracrine

Close together

Juxtacrine

touching/contact

Endocrine

Long distance signaling

Adrenal glands

Make stress hormones

Reception

Detection of a signal molecuel coming from outside the cell

Transduction

Convert signal to a form that can bring about a celluar response

Response

Specific celluar response to the signal molecule

Three stages of celluar communication

Reception, Transduction, Response

Phosphorylation cascade

Enhance and amplify signals

Protein Modification

Protein changes shape and function to adapt to the cell

Where does signaling begin?

The recognition of a chemical messenger by a receptor protein (ligand) in a target cell.

After Ligand Binds -

The inercelluar domain outer receptor protein changes shape, which starts the transduction of the signal.

Second messengers

Molecules that relay and amplify the intercelluar signals.

Signal transduction

Infleunces how the cell responds to its environment

Signal transduction effects

Changes in gene expression and cell function

Apoptosis

The response of a signal transduction

Changes in signal transduction

Leads to altering celluar response

Changes in protein structure

Change in function

Signaling Pathway

Chemicals that interfere with with singaling pathway may activate or inhibit the pathway