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
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Textbook Question
Chapter 38, Problem 3TY
Which is false about polypeptide hormones?
- They bind to receptors located on cell membranes.
- Most of them are lipid-soluble.
- They are the most abundant class of hormones.
- They normally activate second messengers.
- They bind reversibly to receptors.
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Why is this wrong?
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.
Steroid hormones find their receptors inside of cells. True or Flase? This is true. Explain why this is not false
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...
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- Each steroidogenic organ has all the enzymes necessary to produce any steroid hormone. (True or false?)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_forwardSecond messengers assist _________. a. steroid hormones b. nonsteroid hormones c. only thyroid hormones d. both a and barrow_forward
- Do most steroid hormones have cell membrane receptors or intracellular receptors? Why?arrow_forwardWhy do steroid hormones not require signal transduction and second messengers to exert their actions?arrow_forwardSteroid hormones are made up of what molecules? What distinguishes steroid hormones' physical characteristics from those of other hormones?arrow_forward
- What are “tropic” hormones? Provide an example.arrow_forwardAfter reading about hormones, please write a paragraph: What could happen to hormone function if target cells receptors are structurally incorrect?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_forward
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