Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Chapter 37, Problem 20RQ
Recent studies suggest that blue light exposure can impact human circadian rhythms. This suggests that blue light disrupts the function of The gland(s).
- adrenal
- pituitary
- pineal
- thyroid
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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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- Explain the situation where the same hormone could have two opposite effects on the body using different receptors (name them and describe specific signaling pathways and resulting outcomes)arrow_forwardThere is a significant difference between the lobes of the pituitary gland. Select ALL that apply, The neurohypophysis is significantly larger than the adenohypophysis The adenohypophysis is glandular and ductless. The neurophypophysis is not. The neurohypophysis is an elongation of the hypothalamus. The adenohypophysis produces prolactin which is stimulated by dopamine. The adenohypophysis produces prolactin which is inhibited by dopamine.arrow_forwardExplain the basis of the fact that nervous control is rapid but of short-duration, whereas hormonal control takes time to start but the effects last a long time. How would body function change if the rate of hormone degradation increased? Decreased?arrow_forward
- the following is true for a peptide hormone? It... is able to pass through the cell membrane 2O can act directly in the nucleus to stimulate protein synthesis has a slower response time than a steroid hormone O utilizes a second messenger system.arrow_forward1. Differentiate - Endocrine and Exocrine glands 2. Identify at least 1 hormone and explain how its physiologic process following (stimulus - specific organ - type of hormone - effect) 3. Identify one endocrine disease and explain how it deviated from the normal process of homeostasis.arrow_forwardThe action of thyroid hormone to increase the effect of epinephrine would be an example of a: antagonistic effect synergistic effect O priming effect O permissive effectarrow_forward
- Melatonin is a hormone made by the pineal gland, a small gland in the brain. Melatonin helps control your sleep and wake cycles. Evaluate each statement below and select the statement that best describes the pathway. Select one: a. Light on the retina stimulates the hypothalamus to send a signal to the pineal gland to stop producing melatonin, signalling the body to go to sleep. b. Light on the retina stimulates the hypothalamus to send a signal to the pineal gland to increase the production of melatonin, signalling the body to go to sleep. c. Light on the retina stimulates the hypothalamus to send a signal to the pineal gland to stop producing melatonin, signalling the body to wake up. d. Light on the retina stimulates the hypothalamus to send a signal to the pineal gland to increase the production of melatonin, signalling the body to wake up.arrow_forwardThe diagram below illustrates feedback control as exerted by the hormone thyroxine. Following surgical removal of the thyroid gland, the level of TSH in the blood will increase. inhibition Thyroxine feedback loop A B Which of the following best explains this increase? с hypothalamus thyrotropin-releasing hormone (TRH) D anterior pituitary thyroid-stimulating hormone (TSH) inhibition thyroid gland thyroxine Residual blood thyroxine, prior to thyroid gland removal, will bind to cells in the anterior pituitary, signaling more TSH secretion. Thyroxine that was stored in the anterior pituitary prior to thyroid gland removal will sig. nal more TSH secretion. Thyroxine will remain bound to thyroxine receptors on various body cells, and these body cells will secrete additional hormones that stimulate the anterior pituitary to se crete TSH. A decrease in thyroxine levels means a loss of inhibition to the hypothalamus and ante rior pituitary, leading to increased TSH secretion.arrow_forwardThe feedback pathway for the long-term stress hormone is shown below. Hypothalamus → Releasing Hormone → Gland 1 - → Hormone 1- Gland 2 – Hormone 2 Some Endocrine Structures and Hormones 1. Posterior pituitary 2. Anterior pituitary 3. ADH 4. ACTH 5. Adrenal medulla 6. Adrenal cortex 7. Cortisol 8. Epinephrine Select the number of the structure from the list above that corresponds to the gland or hormone in the long-term stress hormone release pathway. Gland 1 Hormone 1 Gland 2 Hormone 2arrow_forward
- Hormone release and regulation is a complex interplay of control systems, feedback pathways and the concentration of circulating substances. Demonstrate your understanding of how negative feedback systems work by considering what would happen if the usual mechanisms no longer applied. You may like to think about an ectopic source of adrenocorticotropic hormone (ACTH), as secreted from a small cell carcinoma of the lung, as an example. In your explanation of how negative feedback systems can be derailed, describe how hormone/s released from the target endocrine organ usually regulate the feedback loop.arrow_forwardThyroid hormones have all of the following qualities, except:A. They activate synthesis of RNA and amino acidsB. They increase basal metabolismC. They inhibit erythropoesisD. They increase heat productionE. They stimulate insulin breakdownarrow_forwardCorrectly 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_forward
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