Lecture9

Lecture9 - 02.07.11 Lecture 9: Cell Communication I...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
02.07.11 Lecture 9: Cell Communication I
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Multicellular organisms need to coordinate cellular functions in different tissues Cell-to-cell communication is also used by single celled organisms to signal to other organisms Biologists have discovered several universal mechanisms of cellular regulation
Background image of page 2
General mechanism of cellular signaling 1. Reception of signal 2. Transduction of signal 3. Cellular response
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Signal transduction Conversion of information from one form into another
Background image of page 4
Signaling cascades perform 5 crucial functions 1. Transduce signal into molecular form that can stimulate response 2. Relay signal from point of reception to point of action in the cell 3. Amplify the received signal 4. Distribute the signal to influence several responses in parallel 5. Each step is open to modulation by other signals
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
signaling pathways • Individual cells respond to a limited set of signals for which they have receptors • A single cell may have 10 to
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 05/26/2011 for the course BIO 205 taught by Professor Reed during the Spring '11 term at UNC.

Page1 / 29

Lecture9 - 02.07.11 Lecture 9: Cell Communication I...

This preview shows document pages 1 - 7. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online