CAMPBELL BIOLOGY MOD MASTERING (18 WEEK)
12th Edition
ISBN: 9780136920335
Author: Urry
Publisher: PEARSON
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Textbook Question
Chapter 11, Problem 2TYU
The activation of receptor tyrosinc kinases is characterized by
(A) dimeiization and phosphorylation.
(B) dimerization and IP3 binding.
(C) a phosphorylation cascade.
(D) GTP liydrolysis.
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Students have asked these similar questions
1) Amino acids that contain hydroxyl groups in their R-groups can be phosphorylated during cellular signaling.
(a) What amino acids can be phosphorylated? (use the one letter amino acid abbreviations)
(b) Does phosphorylation turn a signaling protein “on” or “off”?
(c) Whatis the most common source of a phosphate used to phosphorylate a protein
(d) What enzyme type (or category of enzymes)removes phosphates from proteins?
3) Acetylcholine binds to a GPCR on heart muscle, making the heart beat more slowly.
The activated receptor stimulates a G protein, which opens a K+ channel in the
plasma membrane, as shown in Figure 1. Which of the following would enhance
this effect of the acetylcholine?
(a)
(b)
(c)
(d)
Figure 1
addition of a high concentration of a non-hydrolyzable analog of GTP
addition of a drug that prevents the a subunit from exchanging GDP for
GTP
mutations in the acetylcholine receptor that weaken the interaction
between the receptor and acetylcholine
mutations in the acetylcholine receptor that weaken the interaction
between the receptor and the G protein
(a) Predict the effect of a mutation that enhances the activity of the kinase associated with the PDH complex. (b) Predict the effect of a mutation that reduces the activity of the phosphatase associated with the PDH complex.
Chapter 11 Solutions
CAMPBELL BIOLOGY MOD MASTERING (18 WEEK)
Ch. 11.1 - Explain how signaling is involved in ensuring that...Ch. 11.1 - In liver cells, glycogen Phosphorylase acts in...Ch. 11.1 - Prob. 3CCCh. 11.2 - Prob. 1CCCh. 11.2 - WHAT IF? What would the effect be if a cell made...Ch. 11.2 - MAKE CONNECTIONS How is ligand binding similar to...Ch. 11.3 - What is a protein kinase, and what is its role in...Ch. 11.3 - When a signal transduction pathway involves a...Ch. 11.3 - What is the actual signal that is being transduced...Ch. 11.3 - WHAT IF? If you exposed a cell to a ligand that...
Ch. 11.4 - How can a targct cell's response to a single...Ch. 11.4 - WHAT IF? If two cells have different scaffolding...Ch. 11.4 - Prob. 3CCCh. 11.4 - Prob. 4CCCh. 11.5 - Give an example of apoptosis during embryonic...Ch. 11.5 - WH AT IF? If apoptosis occurred when it should...Ch. 11 - What determines whether a cell responds to a...Ch. 11 - How are the structures of a GPCR and an RTK...Ch. 11 - What is the difference between a protein kinase...Ch. 11 - What mechanisms in the cell terminale its response...Ch. 11 - What is an explanation for the similarities...Ch. 11 - Binding of a signaling molecule to which type of...Ch. 11 - The activation of receptor tyrosinc kinases is...Ch. 11 - Lipid-soluble signaling molecules, such as...Ch. 11 - Consider this pathway: epinephrine G...Ch. 11 - Apoptosis involves all but which of the following?...Ch. 11 - Which Observation suggestcd to Sutherland the...Ch. 11 - Prob. 7TYUCh. 11 - DRAW IT Draw the following apoptotic pathway,...Ch. 11 - EVOLUTION CONNECTION Identify the evolutlonary...Ch. 11 - Prob. 10TYUCh. 11 - SCIENCE, TECHNOLOGY, AND SOCIETY The aging process...Ch. 11 - WRITE ABOUT A THEME: ORGANIZATION The properties...Ch. 11 - SYNTHESIZE YOUR KNOWLEDGE There are five basic...
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