Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 38, Problem 4TY
Which is false about the control of hormones?
- Many are regulated by negative feedback.
- In some cases, they may be controlled by changes in blood concentrations of certain nutrients such as glucose.
- In some cases, they may be controlled by changes in blood concentrations of certain minerals such as
- Their blood concentrations are controlled by their rates of synthesis and degradation.
- The rate of degradation of a hormone may go up or down, but synthesis is always constant.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Many functions in the body are controlled by hormones – chemical signals that are secreted by one organ or tissue, but have effects in multiple areas.
Calcium can enter the body from what we eat and drink. It circulates through blood and is used by many organs, so it’s level is carefully regulated. The amount of calcium in the blood is maintained at a relatively constant level by two hormones; for our purposes, we’ll just call them hormone A and hormone B. Hormone A is secreted by the parathyroid gland and it functions to increase blood calcium levels. Hormone B is secreted by parafollicular cells (C cells) in the thyroid gland and it functions to decrease blood calcium levels.
Calvin, a teenage boy, begins eating ChocoRite™ Calcium Bites, a very tasty calcium supplement. He likes them so much that he ends up eating a whole package one afternoon.
1.Where does hormone B come from?
A)From the calcium regulatory cells
B)From the parathyroid gland
C)From calcium supplements,…
Human hormones control everything within the body (as well as the behaviors of others around us). select one hormone and discuss what would happen to the body if it was no longer produced, if too much of it were to appear in the body, and what you could do about it if levels were incorrect.
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.
Chapter 38 Solutions
Principles of Biology
Ch. 38.1 - Prob. 1TYKCh. 38.1 - The synthesis of which class of hormone requires...Ch. 38.2 - Prob. 1BCCh. 38.2 - Prob. 1TYKCh. 38.2 - Prob. 2TYKCh. 38.3 - Prob. 1BCCh. 38.3 - Prob. 1TYKCh. 38.3 - Prob. 2TYKCh. 38.4 - Prob. 1CCCh. 38.4 - Prob. 1TYK
Ch. 38.5 - Some children with short stature can be...Ch. 38.5 - Prob. 2TYKCh. 38.5 - Prob. 1CCCh. 38.6 - Prob. 1TYKCh. 38.7 - Prob. 1TYKCh. 38 - Prob. 1TYCh. 38 - Prob. 2TYCh. 38 - Which is false about polypeptide hormones? They...Ch. 38 - Which is false about the control of hormones? Many...Ch. 38 - Prob. 5TYCh. 38 - Prob. 6TYCh. 38 - Prob. 7TYCh. 38 - Prob. 8TYCh. 38 - Prob. 9TYCh. 38 - Prob. 10TYCh. 38 - What is the function of leptin, and what is the...Ch. 38 - Prob. 2CCQCh. 38 - A principle of biology is that living organisms...Ch. 38 - Prob. 1CBQCh. 38 - Discuss the role of the different steroid hormones...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Give two examples of feedback control of hormone activity.arrow_forwardEach steroidogenic organ has all the enzymes necessary to produce any steroid hormone. (True or false?)arrow_forwardWhich of the following stimulate the secretion of hormones? a. neural signals b. local chemical changes c. hormonal signals stimulate hormone secretion d. environmental cues e. all of the above canarrow_forward
- Figure 16.14 Goiter, a disease caused by iodine deficiency, results in the inability of the thyroid gland to form T3 and T4 . The body typically attempts to compensate by producing greater amounts of TSH. Which of the following symptoms would you expect goiter to cause? a. Hypothyroidism, resulting in weight gain, cold sensitivity, and reduced mental activity. b. Hyperthyroidism, resulting in weight loss, profuse sweating and increased heart rate. C. Hyperthyroidism, resulting in weight gain, cold sensitivity, and reduced mental activity. d. Hypothyroidism, resulting in weight loss, profuse sweating and increased heart rate.arrow_forwardA physician sees a patient whose symptoms include sluggishness, depression, and intolerance to cold. After eliminating other possible causes, the doctor diagnoses a hormone problem. What disorder fits the symptoms? Why does the doctor suspect that the underlying cause is a malfunction of the anterior pituitary gland?arrow_forwardCells of an overactive thyroid can be killed by radioactive iodine. Explain why the thyroids hormone-producing cells take up more radioactive iodine than other cells of the body.arrow_forward
- Figure 37.11 Pancreatic tumors may cause excess secretion of glucagon. Type I diabetes results from the failure of the pancreas to produce insulin. Which of the following statement about these two conditions is true? A pancreatic tumor and type I diabetes will have the opposite effects on blood sugar levels. A pancreatic tumor and type I diabetes will both cause hyperglycemia. A pancreatic tumor and type I diabetes will both cause hypoglycemia. Both pancreatic tumors and type I diabetes result in the inability of cells to take up glucose.arrow_forwardA 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_forwardChronic stress or GC exposure can cause insulin resistance. The influence of GC on insulin is complex, but leads to hyperinsulinemia (high circulating insulin levels) and insulin resistance. Insulin resistance is typically caused by a decreased number of insulin receptors on the cell surface. Speculate on a mechanism resulting in a decreased number of insulin receptors.arrow_forward
- Illustrate, using a negative feedback pathway, the regulation of hormones of the thyroid gland. Using this illustration, explain (in words) how the negative feedback pathway works.arrow_forwardTake thyroid hormones as an example of hormones and their properties. Thyroid hormone is highly bound to proteins in the blood. What is the benefit of such protein binding? What effect does protein binding have on the activity of the hormone? Name a gland other than the thyroid gland that is involved in regulating thyroid hormone production?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
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Great Glands - Your Endocrine System: CrashCourse Biology #33; Author: CrashCourse;https://www.youtube.com/watch?v=WVrlHH14q3o;License: Standard Youtube License