Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 37, Problem 7RQ
A new antagonist molecule has been discovered that binds to and blocks plasma membrane receptors. What effect will this antagonist have on testosterone, a steroid hormone?
- It will block testosterone from binding to its receptor
- It will block testosterone from activating cAMP signaling
- It will increase testosterone-mediated signaling
- It will not affect testosterone-mediated signaling.
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Students have asked these similar questions
Which of the following is TRUE regarding different modes of chemical communication?
a
endocrine signaling can only be used to communicate with cells of the same tissue
b
neurohormone signaling would have a shorter duration than autocrine
c
neural signaling would be longer lasting than neurohormone
d
neural signaling would be faster than neurohormone
e
paracrine signaling requires a link to the blood supply
Describe to me why certain hormones
(lipids-based hormones) can move directly
through the cell membrane in comparison
to hormones (protein-based hormones)
have to bind to the outside of the cell and
then send secondary messengering inside
in order to work? Which hormones are in
each of the 2 categories? How does this
affect the way we deliver/treat hormone
conditions?
Which of the following statements about hormones is correct?
O steroid hormones are water soluble
O epinephrine, norepinephrine, and dopamine are all catecholamines
O receptor molecules of water soluble hormones are usually cell membrane proteins
O water soluble hormones act on target cells by altering gene expression
O Amine hormones are all lipid soluble
O receptor molecules of lipid soluble hormones are usually in the cytoplasm or nucleus, but can also be in the cell membrane
O insulin, growth hormone, and ecdysone are all examples of peptide hormones
Chapter 37 Solutions
Biology 2e
Ch. 37 - Figure 37.5 Heat shock proteins (HSP) are so named...Ch. 37 - Figure 37.11 Pancreatic tumors may cause excess...Ch. 37 - Figure 37.14 Hyperthyroidism is a condition in...Ch. 37 - A newly discovered hormone contains four amino...Ch. 37 - Which class of hormones can diffuse through plasma...Ch. 37 - Why are steroids able to diffuse across the plasma...Ch. 37 - A new antagonist molecule has been discovered that...Ch. 37 - What effect will a cAMP inhibitor have on a...Ch. 37 - When insulin binds to its receptor, the complex is...Ch. 37 - Drinking alcoholic beverages causes an increase in...
Ch. 37 - FSH and LH release from the anterior pituitary is...Ch. 37 - What hormone is produced by beta cells of the...Ch. 37 - When blood calcium levels are low, PTH stimulates:...Ch. 37 - How would mutations that completely ablate the...Ch. 37 - A rise in blood glucose levels triggers release of...Ch. 37 - Which mechanism of hormonal stimulation would be...Ch. 37 - A scientist hypothesizes that the pancreas’s...Ch. 37 - Which endocrine glands are associated with the...Ch. 37 - Which of the following hormones is not produced by...Ch. 37 - Recent studies suggest that blue light exposure...Ch. 37 - Although there are many different hormones in the...Ch. 37 - Where is insulin stored, and why would it be...Ch. 37 - Glucagon is the peptide hormone that signals for...Ch. 37 - Name two important functions of hormone receptors.Ch. 37 - How can hormones mediate changes?Ch. 37 - Why is cAMP-mediated signal amplification not...Ch. 37 - Name and describe a function of one hormone...Ch. 37 - Describe one direct action of growth hormone (GH).Ch. 37 - Researchers have recently demonstrated that...Ch. 37 - How is hormone production and release primarily...Ch. 37 - Compare and contrast hormonal and humoral stimuli.Ch. 37 - Oral contraceptive pills work by delivering...Ch. 37 - What does aldosterone regulate, and how is it...Ch. 37 - The adrenal medulla contains two types of...Ch. 37 - How would damage to the posterior pituitary gland...
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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 what ways do steroid hormones differ from peptide hormones? More than one aswer may be correct. Question 12 options: They bind to a receptor inside the cell They circulate bound to plasma proteins They are derived from cholesterol They are hydrophilic They passively diffuse out of the cellarrow_forwardIn terms of their relative duration of signaling, which of the following is the odd one out? O autocrine neural paracrine O neurohormonearrow_forward
- 7 of 41 Which statement relating to endocrine signaling is false? O Histamine is a paracrine O Hormonal signals enter the bloodstream, so hormones influence all cells with which they come in contact Hormones are released to the extracellular fluid and then diffuse into the bloodstream. O Some endocrine cells exist as single cells within a tissue. O Hormones, paracrines, and autocrines bind to receptorsarrow_forwardA patient is prescribed drug for the treatment of his prostate cancer that blocks testosterone from binding to its intracellular receptor. Which of the following drugs has this mechanism of action? Flutamide Tamoxifen Leuprolide Sunitinibarrow_forwardIn addition to carrying information between the brain and the peripheral nervous system, the spinal cord also functions 11 to coordinate fine movements in skeletal muscles to carry impulses which control heart and breathing rates as the control center for some reflex actions as the control center for production of digestive secretions Hormones move through the circulatory system and come in contact with all tissues in the body. Whether a group of cells is targeted by a particular hormone depends upon ↑ #3 O O @ 2@ 3 £ the location of the cells in relation to the gland that produces the hormone the presence of appropriate receptor proteins on the cell membranes whether the cells are actively dividing and growing whether the cells are also being stimulated by the nervous system с 54 $ 4¢ O M % 5 ¤ A 31 acer Oll 6¬ ? & 71 O * 2 9 xarrow_forward
- Why does DDT interfere with the normal action of female hormones? O the chemical structure of DDT is similar to the chemical structure of estrogens O DDT causes a decrease in the production of female sex hormones DDT causes an increase in the production of female sex hormones O DDT alters the shape of a cell's receptors for female sex hormonesarrow_forwardIn comparison to protein hormones, steroid hormones: (Select all that apply). O Have a longer half-life O Have a shorter half life O Are water-soluble O Are lipid-soluble O Can cross the cell membrane O Cannot cross the cell membrane Can interact with receptors on the cell surface O Can interact with receptors in the nucleus or cytoplasmarrow_forwardMatch each description with the appropriate receptorarrow_forward
- Correctly order (from first to last) the steps involved in the Steroid mechanism of hormone action the harmone receptor complex is formed the steroid homorne diffuses into a cell's cytoplasm the hormone-receptor complex transloacates into the cell's nucleus transcription occurs followed by translation a newly formed protein initiates a cellular response the steroid harmone detaches from its protein carrierarrow_forwardWhy is this wrong?arrow_forwardWhich of the following statements is not true about hormones O They travel in the blood O They reach their target cell through the synaptic cleft O They are specific O They must bind to a receptor O They could be made of peptides, steroids, or aminesarrow_forward
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