CAMPBELL BIOLOGY IN FOCUS-W/MASTR.BIO.
3rd Edition
ISBN: 9780134875040
Author: Urry
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 5, Problem 3TYU
Phosphorylation cascades involving a series of protein kinases are useful for cellular signal transduction because
- A. they are species specific.
- B. they always lead to the same cellular response.
- C. they amplify the original signal manyfold.
- D. they counter the harmful effects of phosphatases.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A researcher tested Compound A on chemotaxing cells and measured the relative amount of filamentous actin found in the cells at different times. Based on the researcher’s observations on filamentous actin, what other observation regarding cell chemotaxis was MOST likely observed?
A.
The cell moved toward the source of the signaling molecule only after the addition of Compound A.
B.
The cell moved away from the source of the signaling molecule only after the addition of Compound A.
C.
The cell first moved toward and then away from the signaling molecule after the addition of Compound A.
D.
The cell did not move toward or away from the signaling molecule after the addition of Compound A.
A biochemist is designing a new drug that will mimic the shape and function of a particular intercellular signaling molecule. Therefore she must produce a molecule that will bind to the receptor protein and...
A. produce a cellular response by altering the Na+/K+ pump located near the receptor site.
B. induce a change in the receptor molecule shape, which will ultimately prevent a cellular response.
C. induce a change in the receptor molecule shape, which will ultimately produce a cellular response.
D. induce a change in the phospholipid bilayer that causes a polar reversal allowing the molecules to be endocytose (engulfed).
Which of the following would be considered second messengers of a signaling pathway?
Select one:
a. A kinase enzyme
b. A scaffolding protein holding three kinases
c. Adenyl cyclase
d. All answers are examples of second messengers
e. A sugar like inositol
f. Ligand gated channel
Chapter 5 Solutions
CAMPBELL BIOLOGY IN FOCUS-W/MASTR.BIO.
Ch. 5.1 - Plasma membrane proteins have carbohydrates...Ch. 5.1 - WHAT IF? How would the membrane lipid composition...Ch. 5.2 - What property allows O2 and CO2, to cross a lipid...Ch. 5.2 - Why is a transport protein needed to move many...Ch. 5.2 - MAKE CONNECTIONS Aquaporins exclude passage of...Ch. 5.3 - How do you think a cell performing cellular...Ch. 5.3 - WHAT IF? If a Paramecium caudatum cell swims from...Ch. 5.4 - Sodium-potassium pumps help nerve cells establish...Ch. 5.4 - Prob. 2CCCh. 5.4 - MAKE CONNECTIONS Review the characteristics of the...
Ch. 5.5 - As a cell grows, its plasma membrane expands. Does...Ch. 5.5 - Prob. 2CCCh. 5.5 - MAKE CONNECTIONS In Concept 4.7, you learned that...Ch. 5.6 - During an epinephrine-initiated signal in liver...Ch. 5.6 - When a signal transduction pathway involves a...Ch. 5.6 - WHAT IF? How can a target cells response to a...Ch. 5 - In what way do the membranes of a eukaryotic cell...Ch. 5 - Which of the following factors would tend to...Ch. 5 - Phosphorylation cascades involving a series of...Ch. 5 - Lipid-soluble signaling molecules, such as...Ch. 5 - Which of the following processes includes all the...Ch. 5 - Based on Figure 5.17.which of these experimental...Ch. 5 - Prob. 7TYUCh. 5 - SCIENCE, TECHNOLOGY, AND SOCIETY Extensive...Ch. 5 - FOCUS ON EVOLUTION Paramecium and other...Ch. 5 - FOCUS ON INTERACTIONS A human pancreatic cell...Ch. 5 - SYNTHESIZE YOUR KNOWLEDGE In the supermarket,...
Additional Science Textbook Solutions
Find more solutions based on key concepts
CAUTION How can evolutionary fitness be estimated? a. Document how long individuals survive. b. Count the numbe...
Biological Science (6th Edition)
The pedigrees indicated here were obtained with three unrelated families whose members express the same disease...
Genetics: From Genes to Genomes
Define histology.
Fundamentals of Anatomy & Physiology (11th Edition)
Propose a model for the assembly of a flagellum in a typical Gram-positive cell envelope.
Prescott's Microbiology
How does trandlation differ from transcription?
Microbiology: Principles and Explorations
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- A drug that inhibits the kinase activity of AKT would MOST likely have which of the following effects? A. Increased GSK-3b activity and increased CyclinD synthesis B. Increased GSK-3b activity and decreased CyclinD synthesis C. Decreased GSK-3b activity and increased CyclinD synthesis D. Decrease GSK-3b activity and decreased CyclinD synthesisarrow_forwardWhich of the following signaling mechanisms is not a switch mechanism? a. Changes in phosphorylation state b. Binding of GTP c. Binding of Ca2+ ion d. Protease activityarrow_forwardIn which condition a trimeric G protein is activated by a cell-surface receptor,a. the a subunit exchanges its bound GDP for GTP.b. the B subunit exchanges its bound GDP for GTP.c. the GDP bound to the a subunit is phosphorylated to form bound GTP.d. it dissociates into a free B subunit and an ay subunit.e. it dissociates into an active a subunit and in inactive By subunit.arrow_forward
- The activation of receptor tyrosine kinases is characterized by a. dimerization and phosphorylation b. a phosphorylation cascade c. channel protein shape change d. GTP hydrolysisarrow_forwardFor cellular transduction, why is it useful that phosphorylation cascades have a series of protein kinases? a. they amplify the original signal b. they always lead to the same cellular response c. the number of molecules used is small and fixed d. they are cell specificarrow_forwardMany different cellular processes are regulated by GTP binding proteins - a kind of molecular switch. Their activity is regulated by their GTP/GDP binding status. Select the correct function and activity of Rab-GTP. O A. Rab in its GTP bound state is active and able to participate in vesicle transport B. Rab in its GTP bound state is inactive and prevents vesicle transport O C. Rab in its GTP bound state is active and prevents vesicle transport O D. Rab in its GTP bound state is inactive and able participate in vesicle transportarrow_forward
- A cell has epinephrine receptors, yet is unable to respond to epinephrine signaling. One possible reason is: A. The cell has no DNA. B. The cell is missing a functional G-protein or adenylyl cyclase. C. All of the epinephrine receptors are on the cell’s surface. (They’re supposed to be in the cytoplasm!) D. Both A and C.arrow_forwardReceptor downregulation often occurs via endocytosis as a means of turning off a signaling pathway. How does receptor- mediated endocytosis result in turning off signaling? O A. Receptor-mediated endocytosis shuts off signaling through polyubiquitination and degradation of the receptor by the proteasome. B. It doesn't. Signaling continues until the endosome fuses with the lysosome. ) C. Signaling is shut off rapidly through the budding of endosomes into themselves forming multivesicular bodies. This sequesters the cytoplasmic tail from intracellular signaling proteins. D. Receptor-mediated endocytosis shuts off signaling by sorting receptors to recycling endosomes.arrow_forwardWhich of the following elements may be in the transduction part of cell signaling? Select one: a. A phosphatase b. A kinase c. cyclin AMP d. ions e. All answers are correctarrow_forward
- Identify which of the following statements is a lie? Select one: a. A signalling pathway called MAPK/ERK pathway regulates protein translation. b. 2. Two enzymes are phosphorylated by protein kinase A. c. Under normal conditions, cells can divide even without signals from other cells.arrow_forwardA hormone signals through a G protein-coupled receptor as shown in the diagram. After the production of IP3, which of these events will MOST quickly stop the transduction of the signal? A. the hydrolysis of IP3 B. the hydrolysis of GTP C. the hydrolysis of PIP2 D. the hydrolysis of the hormone I believe the answer is (B) the hydrolysisof GTP, because the G protein becomes inactive after GTP is hydrolyzed to GDP. However, the solution provided by Bartleby is (C). Please explain. Thanksarrow_forwardThe hypothesis for the experiment shown in the picture  is that the TamC3 and TamR3 cell lines function, and grow the absence of estrogen, receptor function. Reduced reliance on estrogen, receptor signaling alters mTOR pathway activity. If this hypothesis is true, then mediators of mTOR signaling (Akt or p70S6K) should have reduced levels of phosphorylation . A. Where would you look to see this? B. To what degree does the data in the picture support the hypothesis?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
genetic recombination strategies of bacteria CONJUGATION, TRANSDUCTION AND TRANSFORMATION; Author: Scientist Cindy;https://www.youtube.com/watch?v=_Va8FZJEl9A;License: Standard youtube license