CAMPBELL BIOLOGY-W/MOD.MASTERBIOLOGY
11th Edition
ISBN: 9780134683461
Author: Urry
Publisher: PEARSON
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Textbook Question
Chapter 11, Problem 12TYU
WRITE ABOUT A THEME: ORGANIZATION The properties of life emerge at the biological level of the cell. The highly regulated process of apoptosis is not simply the destruction of a cell; it is also an emergent property. Write a short essay (about 100–150 words) that hriefly explains the role of apoptosis in the development and proper functioning of an animal, and describe how this form of programmed cell death is a process that emerges from the orderly integration of signaling pathways.
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Students have asked these similar questions
Artificially induced apoptosis (controlled cellular death) is found to be an effective treat-
ment for some forms of cancer.
Which of the following describes the most likely mechanism by which apoptosis might be
induced?
A
B
с
D
by causing ribosomes to increase the rate of protein synthesis
by triggering the division of mitochondria in the cell to increase ATP production
by increasing the expression of membrane-bound glucose protein channels
by causing lysosomes to release digestive enzymes into the cytosol
RAS is a signal transducer that acts as a switch for turning on cell division. Drag the descriptions below to their proper places on the
figure to show the sequence of events.
When growth factor
binds to the receptor,
the intracellular domain
activates RAS by
facilitating exchange of
GDP for GTP.
When no growth factor
is bound to the
extracellular receptor,
RAS is bound to GDP
and is inactive.
RAS activates the
first of three
sequential kinase
proteins termed the
MAP kinase cascade.
Cell proliferation
proceeds as the
machinery for cell
division is set in
motion.
The end result of the
MAP kinase cascade
is activation of a
transcription factor.
Receptor
1
Ras
GDP
2
4
5
Growth factor
Ras
GTP
Signaling can result in both fast and slow cellular responses.
does the following statement describe a fast or slow cellular response?
A signaling molecule binds to a GPCR, which activates a G-protein, the G-protein activates cAMP, which activates PKA, which turns on a transcriptoin factor, which goes on to affect gene expression
Group of answer choices
Fast
Instantaneous
Slow
Intermediate
Chapter 11 Solutions
CAMPBELL BIOLOGY-W/MOD.MASTERBIOLOGY
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 - Nerve growth factor (NGF) is a water-soluble...Ch. 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. 11.5 - 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 - Protein phosphorylation is commonly involved with...Ch. 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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