How is hormone binding to its receptor more like an allosteric regulator binding to an enzyme than a substrate binding to an enzyme?Like allosteric regulation, hormone binding is noncovalent and serves to control the rate of a reaction, rather than to take part in a reaction.Like allosteric regulation, hormone binding is ionic and serves to control the rate of a reaction, rather than to take part in a reactioncO Like allosteric regulation, hormone binding is covalent and serves to control the rate of a reaction, rather than to take part in a reactioncSubmitRequest AnswerProvide Feedback

The hormones are the chemical messengers that are responsible for activation of specific signalling…

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Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter15: The Endocrine System

Section: Chapter Questions

Problem 2RQ: A hormone molecule binds to a receptor on a cell membrane. It doesnt enter the cell; rather, the...

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how should think about this process ? Thyroid hormones generate a response in their target cell by Group of answer choices binding to its surface receptors. by binding to an intracellular receptor and promoting gene expression by binding to a ligand-gated receptor by binding to a tyrosine kinase receptor.
Suppose that the circulating concentration of hor-mone is 10–10 M and the Kd for binding to its receptor is 10–8M. What fraction of the receptors will have hormone bound?If a meaningful physiological response occurs when 50% ofthe receptors have bound a hormone molecule, how muchwill the concentration of hormone have to rise to elicit aresponse? The fraction of receptors (R) bound to hormone(H) to form a receptor–hormone complex (R–H) is [R–H]/([R] + [R–H]) = [R–H]/[R]TOT = [H]/([H] + Kd).
True or false Insulin is an example of an amino acid based hormone. Insulin uses a receptor on the plasma membrane of a target cell. Insulin uses a receptor INSIDE of a target cell.
One such laboratory study investigated the binding of a hormone to three different receptor proteins in the cell membrane. The data collected are shown in the table below Which of the proteins demonstrate the tightest/strongest binding of the hormone? Which demonstrates the least tight binding of the hormone? What is the basis for your answer?
Which of the following is important in signal transduction triggered by hormones?a) Phosphatidylinositol and its derivativesb) Phosphatidylserine and its derivativesc) Phosphatidylglycerol and its derivativesd) Phosphatidylethanolamine
In some forms of diabetes, a mutation in the b subunit of the insulin receptor abolishes the enzymatic activity of that subunit. How does the mutation affect the cell’s response to insulin? Can additional insulin (e.g., from injections) overcome the defect?
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 pathway
Thyroid hormone is produced within spherical shape structures in the thyroid gland known as 3. 1_ _ _This structure consists of an outer layer of 3.2 epithelial cells and an inner section known-as 3.3___ . This inner section is filled with 3.4 ____ that is synthesised and secreted by-the cells and contains many tyrosine residues. Within this inner section, organification occurs when 3. 5 ____ molecules attach to these tyrosine residues forming either 3. 6____ (with one molecule attacl1ed) or 3. 7____(with two molecules attached). Through coupling, T3 and T4 are also formed. Of these two hormones;- 3. 8 ____is less potent but forms approximately 93% of the metabolically active hormones secreted the thyroid gland.
What are the roles of the following signaling molecules in the glucagon pathway: Second messenger Kinase (promoting the pathway) Kinase (inhibiting the pathway)
According to the second messenger hypothesis, the second messenger is theea. Receptor located on the cell membrane b. Hormone carrying the signal to the target organ c. Intracellular chemical messenger d. Receptor located in the cell nucleus e. All of the above Which hormone has a receptor that is structurally similar to estrogen receptor? a. Insulin b. Epinephrine c. FSH d. Thyroid hormone
What is the difference between hormone binding to its receptor and allosteric regulator binding to an enzyme?
Feedback loops regulate the release of hormones in either a positive or negative loop. Consider this example: The hypothalamus releases thyrotropin releasing hormone (TRH), which stimulates the pituitary to release the TSH (thyroid stimulating hormone). TSH then stimulates thyroid gland to release thyroid hormone. When elevated levels of thyroid hormone are detected by the hypothalamus and pituitary further release of TRH and TSH is suppressed. b. What would happen to the levels of TRH and TSH if a tumor of the thyroid gland were discovered resulting in uncontrolled release of the thyroid hormone from the tumor itself? * Your answer (LENGHT DOESN'T MATTER, I NEED IT ASASP PLEASE)

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