Cell Communication in Advanced Cell Biology Lecture No.10
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Questions and Answers

What is the process by which a signal on a cell’s surface is changed or transduced into a specific cellular response?

Signal transduction pathway

What are the similarities in signal transduction pathways across different organisms suggesting?

Ancestral signaling molecules evolved long ago in ancient prokaryotes and single-celled eukaryotes and have since been adopted for new uses by their multicellular descendants.

How are peptide ligands' actions mediated in cellular communication?

By a cell membrane bound receptor

What are the types of chemical signals mentioned in the text?

<p>Ions, lipids, peptides, carbohydrates, glycosylated proteins, nucleic acids</p> Signup and view all the answers

What type of signaling acts over long distances within the organism?

<p>Endocrine signaling</p> Signup and view all the answers

Why is cell-to-cell communication essential for multicellular organisms?

<p>To coordinate their activities.</p> Signup and view all the answers

What is the role of cell signaling in the history of life?

<p>Cell signaling evolved early in the history of life.</p> Signup and view all the answers

How do cells of Saccharomyces cerevisiae identify potential mates?

<p>By chemical signaling.</p> Signup and view all the answers

What do receptors on the cell surface of one cell bind to in order to communicate with another cell?

<p>Glycoproteins on the cell surface of another cell.</p> Signup and view all the answers

In what ways do external signals affect cells?

<p>External signals are converted to responses within the cell.</p> Signup and view all the answers

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