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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When a cell secretes a growth factor that binds to receptors on neighboring cells of different type causing them to
proliferate this is an example of
endocrine signaling
O autocrine signaling
O direct intercellular signaling
O paracrine signaling
O contact-dependent signaling
Describe the function(s) of Endocrine signaling and explain a possible medical consequence if this type of signaling malfunctioned. You may give a specific example of an actual medical condition OR describe it in more generalized terms.
Which chemical signaling affects neighboring cells?
Group of answer choices
neuron
autocrine
endocrine
paracrine
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_forwardDefine autocrine signalingarrow_forwardSome cancer cells release their own grown hormone rather than relying on growth hor- mones from elsewhere in the host organism. Which of the following describes the type of cell communication used by these cancer cells to promote their continued division? A juxtacrine signaling B с D endocrine signaling paracrine signaling autocrine signalingarrow_forward
- In 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_forwardWhen one cell sends a signal and nearby cells receive it, their signaling types is: O Direct O Autocrine O Paracrine O Endocrinearrow_forwardCell signaling involves only one molecule, the receptor. True Falsearrow_forward
- BPA 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_forwardChemical signals Both autocrine and paracrine signaling molecules are carried by the blood to a distant target. Hormones (such as insulin & glucagon) are released directly into extracellular fluid and then enter the circulatory system, which carries them to a distant target. Neurohormones are paracrine signaling molecules that travel exclusively in interstitial fluid to reach their target.arrow_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_forward
- Intracellular 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_forwardThe use of second messengers is an example of a method used in intracellular signaling. (true or false)arrow_forwardThe hormone mechanism which results in the release of intracellular Ca++ is the: 2nd messenger – adenylate cyclase mechanism PIP 2nd messenger mechanism O humoral mechanism Steroid hormone mechanismarrow_forward
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