BIOLOGY
BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 9, Problem 7U
Summary Introduction

Introduction:

Ras is a small GTP binding protein that acts as link between the RTK (receptor tyrosine kinase) and the map kinase pathway.

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Identify which of the following statements is a lie? Select one: a. The docking of ligands to the receptor causes receptor-associated proteins to activate another protein to continue the signaling cascade and one example of this event is the binding of epidermal growth factor (EGF) to the EGF receptor . b. Ligands are important to initiate signal Transduction pathway. c. Ligands detach from the cell surface receptor in order to change the conformation of the receptor and initiate the signaling pathway.
a universal feature of cell signaling receptors is that they?   a. undergo a structural (shape) change when the signal molecule is bound   b. are present only in the plasma membrane   c. are only ion channels   d. are protein kinases   e. aer only nuclear receptors
This is a tyrosine kinase receptor.  a. Briefly describe the action of the receptor upon binding to the logand. b. There are several intracellular pathway possibilities for downstream responses. How might this receptor be able to selectively activate one particular pathway over another?
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Intro to Cell Signaling; Author: Amoeba Sisters;https://www.youtube.com/watch?v=-dbRterutHY;License: Standard youtube license