quiz2%20key.doc

quiz2%20key.doc - 1 BIS 104 S08 QUIZ 2 MAY 20 1(1 Some of...

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1 BIS 104 – S08 QUIZ 2 MAY 20 1. (1) Some of the proteins that are a part of cell signaling pathways are able to amplify the signals. Name one protein that is responsible for amplification of the original signal and explain how it amplifies the signal. e.g. adenylyl cyclase can make many molecules c AMP that can bind to many PKA molecules. This means that one molecule of adenylyl cyclase can activate many protein kinase A molecules. N.B. Your answer must be a protein and you must specifically explain the protein you name leads to amplification, not just signaling. 2. (1) One cell can signal another cell to do many different things. Does the cell that sends the signal to another cell need to be nearby the cell receiving the signal? Explain your answer. No. The cell producing the signal can be far away and the signal can be carried through the blood stream (endocrine signaling). 3. (1) Actin has an important role in cell crawling (or migration). Other proteins also are involved. Name ONE important proteins and explain how
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This note was uploaded on 10/24/2008 for the course BIS 104 taught by Professor Scholey during the Winter '08 term at UC Davis.

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quiz2%20key.doc - 1 BIS 104 S08 QUIZ 2 MAY 20 1(1 Some of...

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