Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 9, Problem 6RQ
The secretion of hormones by the pituitary gland is an example of.____
- autocrine signaling
- paracrine signaling
- endocrine signaling
- direct signaling across gap junctions
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Both autocrine and paracrine signaling molecules are carried by the blood to a distant target.
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Chapter 9 Solutions
Biology 2e
Ch. 9 - Figure 9.8 HER2 is a receptor tyrosine kinase. In...Ch. 9 - Figure 9.10 In certain cancers, the GTPase...Ch. 9 - Figure 9.17 Which of the following statements...Ch. 9 - Figure 9.18 What advantage might biofilm...Ch. 9 - What property prevents the ligands of cell-surface...Ch. 9 - The secretion of hormones by the pituitary gland...Ch. 9 - Why are ion channels necessary to transport ions...Ch. 9 - Endocrine signals are transmitted more slowly than...Ch. 9 - A scientist notices that when she adds a small,...Ch. 9 - Where do DAG and IP3 originate? They are formed by...
Ch. 9 - What property enables the residues of the amino...Ch. 9 - Histamine binds to the H1 G-protein-linked...Ch. 9 - A scientist observes a mutation in the...Ch. 9 - What is the function of a phosphatase? A...Ch. 9 - How does NF-kB induce gene expression? A small,...Ch. 9 - Apoptosis can occur in a cell when the cell is...Ch. 9 - What is the effect of an inhibitor binding an...Ch. 9 - How does PKC’s signaling role change in response...Ch. 9 - A scientist notices that a cancer cell line fails...Ch. 9 - Which type of molecule acts as a signaling...Ch. 9 - Quorum sensing is triggered to begin when...Ch. 9 - A doctor is researching new ways to treat biofilms...Ch. 9 - What is the difference between intracellular...Ch. 9 - How are the effects of paracrine signaling limited...Ch. 9 - What are the differences between internal...Ch. 9 - Cells grown in the laboratory are mixed with a dye...Ch. 9 - Insulin is a hormone that regulates blood sugar by...Ch. 9 - The same second messengers are used in many...Ch. 9 - What would happen if the intracellular domain of a...Ch. 9 - If a cell developed a mutation in its MAP2K1 gene...Ch. 9 - What is a possible result of a mutation in a...Ch. 9 - How does the extracellular matrix control the...Ch. 9 - A scientist notices that a cancer cell line shows...Ch. 9 - What characteristics make yeasts a good model for...Ch. 9 - Why is signaling in multicellular organisms more...Ch. 9 - Pseudomonas infections are very common in hospital...
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- __________ are molecules released from a signaling cell that have effects on target cells. a. Hormones b. Neurotransmitters c. Local signaling molecules d. Pheromones e. a and b f. all of the abovearrow_forwardVisit this link (http://openstaxcollege.org/l/hormonebind) to watch an animation of the events that occur when a hormone binds to a cell membrane receptor. What is the secondary messenger made by adenylyl cyclase during the activation of liver cells by epinephrine?arrow_forwardCell signals with short effects ONLY on the cell which produced the signal in the first place are? a. juxtacrine b. autocrine c. paracrine d. endocrinearrow_forward
- Production of thyroid hormone by cells in the thyroid gland in response to thyroid-stimulating hormone produced by the pituitary is an example of what type of signaling?arrow_forwardWhat is the principal difference of endocrine system from other signaling systems? Select one: A. Endocrine signals diffuse to neighboring target cells. B. Endocrine signals produce self-activation of the secreting cells. C. Endocrine system uses cell-cell contact to transduce signals. D. Endocrine signals are delivered by blood. E. Endocrine signals always generate faster responses in target cells.arrow_forwardWhich of the following is the best example of negative feedback for a steroid hormone? plasma membrane receptor activating a G protein plasma membrane receptor that activates the MAP Kinase pathway nuclear hormone receptor activating transcription of enzymes that synthesize the hormone nuclear receptor inhibiting its own transcriptionarrow_forward
- why is a cell unable to respond to epinephrine signalingarrow_forwardGenerally, a cell that is affected by a particular steroid hormone would be expected to have ________. enzymes that are activated or inactivated by the hormone's second messenger a receptor inside the cell that binds the hormone a cell-surface receptor that binds the hormone DNA sites that interact with the hormonearrow_forwardWhich of the following are components of intracellular enzyme cascades initiated by water-soluble hormones? a. G proteins . cAMP molecules c. protein kinase enzymes d. All of these are correct.arrow_forward
- Which of the following is NOT part of a liver cell's response to epinephrine? Phosphorylation of phosphorylase kinase activation of Protein kinase A GDP phosphorylation by G-alpha production of cAMParrow_forwardWhether the statement "most intracellular signaling pathways provide numerous opportunities for amplifying the responses to extracellular signals" is true or false.arrow_forwardHow does a compound that inhibits the GTPase activity of G-alpha affect liver cell responses to epinephrine? It would increase proliferation. It would decrease glucose production. It would decrease proliferation. It would increase glucose production.arrow_forward
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Intro to Cell Signaling; Author: Amoeba Sisters;https://www.youtube.com/watch?v=-dbRterutHY;License: Standard youtube license