BIOLOGY 2E
2nd Edition
ISBN: 9781506699851
Author: OpenStax
Publisher: XANEDU PUBLISHING
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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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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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- A hormone molecule binds to a receptor on a cell membrane. It doesnt enter the cell; rather, the binding activates a second messenger inside the cell that triggers an amplified response to the hormonal signal. Is the signaling molecule a steroid or a nonsteroid hormone?arrow_forwardIn their mechanism of action, a difference between steroid and nonsteroid hormones is that __________. nonsteroid hormones bind to DNA steroid hormones enter the nucleus of the target cell, and nonsteroid hormones do not nonsteroid hormones cross the plasma membrane more readily than do steroid hormones steroid hormones use a signal transduction pathwayarrow_forwardBPA is a chemical found in plastics that can alter hormonal signaling specifically through interactions with the _______________ receptor. This receptor is an __________________ signaling receptor. Group of answer choices LH; extracellular progesterone; intracellular testosterone; intracellular estrogen; extracellular estrogen; intracellulararrow_forward
- Steroid hormones ______. bind to receptors in the cytoplasm or nucleus trigger a signal transduction pathway when they bind to a receptor bind to mRNA in the cytoplasm to initiate transcription all of the abovearrow_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_forwardIntracellular signaling pathways provide multiple opportunities for the amplification of a response to an extracellular signal. Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a True Falsearrow_forward
- The use of second messengers is an example of a method used in intracellular signaling. (true or false)arrow_forwardProgesterone is a steroid hormone that is produced by the placenta during pregnancy. Based on its structure (shown below), explain why progesterone’s effects are mediated by a receptor located inside the cell rather than on the cell membrane.arrow_forwardName and explain 5 modes of hormonal/neuroendocrine and neuronal signaling. Choose one and describe in a great detail listing cells, receptors, organs, and pathway.arrow_forward
- Explain how the chemical nature of the plasma membrane acts on the two chemical categories of hormones, and thus the type of response each hormone can induce in a target cell. Be sure to thoroughly describe the two types of cellular responses.arrow_forwardindicate endocrine signalings function, the type of cell in which it is made and the specific manner in which it acts as a signaling molecule, including the receptor that it binds to.arrow_forwardA hormone that must generate secondary messenger for its action is the one that Maintains and supports pregnancy Is the main mineralocorticoid of the body Maintains basal metabolic rate of body Stimulates the secretion of androgens from testesarrow_forward
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