Biology
4th Edition
ISBN: 9781259188121
Author: Peter Stiling, Robert Brooker, Linda Graham, Eric Widmaier
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 50.4, Problem 2CC
Summary Introduction
To explain: The reasons that there is more than one hormone that play a significant role in regulating the balance of Na+ and K+.
Introduction: Na+ and K+ guide the formation of membrane potential and generate an equivalent action potential. The concentration of Na+ and K+ are tightly regulated in the body fluids of animals. Usually, more than one hormone helps in regulating the balance of Na+ and K+.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
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
1) Provide a brief explanation as to why ligand binding toproteins must be a reversible process.
2) Calculate the dissociation constant (Kd) for the hormone binding to each of the three proteins.
What type of transport mechanism is demonstrated by Na+ movement through the open voltage-gated Na+ channels?
Describe the function of major hormones (steroid hormones, epinephrine, insulin & glucagon) and major endocrine glands (hypothalamus, pituitary, adrenal glands, pancreas) and how they regulate metabolism.
Explain the organs and tissues different groups use for osmoregulation including how the countercurrent exchange in the loop of Henle allows mammals to recycle water and ions.
Explain how organisms control osmolarity, and how their particular strategies depend on the environment they inhabit.
Chapter 50 Solutions
Biology
Ch. 50.2 - Prob. 1BCCh. 50.3 - Prob. 1BCCh. 50.3 - Prob. 1EQCh. 50.3 - Prob. 2EQCh. 50.3 - Prob. 3EQCh. 50.4 - Prob. 1CCCh. 50.4 - Prob. 2CCCh. 50.5 - Prob. 1CCCh. 50.5 - Prob. 2CCCh. 50 - Which is the defining feature of hormones? a. They...
Ch. 50 - Steroid hormones are synthesized from ______blank...Ch. 50 - Prob. 3TYCh. 50 - Prob. 4TYCh. 50 - Prob. 5TYCh. 50 - Prob. 6TYCh. 50 - Which of the following pairs of hormones are...Ch. 50 - In invertebrates, molting of larvae is stimulated...Ch. 50 - Which of the following is true of the adrenal...Ch. 50 - Prob. 10TYCh. 50 - Prob. 1CQCh. 50 - Distinguish between type 1 and type 2 diabetes...Ch. 50 - Core Concept: Systems Organ systems often exert...Ch. 50 - Discuss the roles of hormones in growth and...Ch. 50 - Prob. 2COQ
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
- Discuss endocrine system intercellular communication in animalsarrow_forwardSuppose 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).arrow_forwardTestosterone and estradiol are male and female sex hormones, respectively, in many vertebrates. In what way(s) do these molecules differ from each other? Testosterone and estradiolarrow_forward
- The peptide hormones vasopressin (ADH) and oxytocin each contain only nine amino acids.Vasopressin is an antidiuretic: even at low doses it controls the resorption of water by the distal tubules of the kidneys and regulates the osmotic content of blood. At high doses it can affect blood pressure. Oxytocin stimulates contraction of uterine smooth muscle. It is secreted during labor to effect delivery of the fetus. Oxytocin in therapeutically delivered to accelerate contractions in a labor that is not progressing. The primary sequences of the two peptides are shown below.Vasopressin: CYFQNCPRG Oxytocin: CYIQNCPLGQuestions: 1. Draw the Primary Structure of Vasopressin and Oxytocin. 2. Calculate the overall charge of the peptides at pH 1, 7, 9, 11 and 14. Are the peptidespositively or negatively charged at pH 7? Between which pH values in this range are thepeptides neutral? Calculate the pI of each peptide. How might the differences affecttheir function?arrow_forwardDiscuss hormone cascade pathway in animalsarrow_forwardOverexpression of this receptor in the cells of the adrenal gland causes Cushing's syndrome, a disease caused by the overproduction of cortisol. One strategy that scientists have employed to treat this disease is the use of small molecules that bind to, but do not activate, MC2R. This type of molecule is generically referred to as an antagonist. How can an antagonist bind to the same receptor as ACTH but not activate it? O a. The antagonist can bind covalently while ACTH binds non-covalently O b. The antagonist is only partially complimentary to the binding pocket of MC2R O The antagonist binds to ACTH and blocks it from binding to the receptor properly O d. The antagonist is the exact same structure as ACTH but since it is synthetic it doesn't work One cause of Cushing's syndrome is the inappropriate production of GPCRS in the adrenal gland that are not normally present in those cells. When these receptors are activated they result in the production of cortisol. Which statement about…arrow_forward
- What is the receptor, control center and effector organ for positive feedback as adrenalinearrow_forwardWhich statement correctly identifies how a lipid-soluble hormone that diffuses from the blood and through the interstitial fluid identifies which cells in the tissue to act upon? O The cell closest to the diffusion site. O The presence of a receptor located in the cytoplasm or nucleus specific to the hormone in cells. O The presence of a receptor embedded in the plasma membrane of target cells. O The presence of a channel protein embedded in the plasma membrane for the lipid-soluble hormone to diffuse through. Save for Later 80 F3 F4 F5 F6 8 F7 Attempts: 0 of 3 used F8 F9 Submit Answer F10arrow_forwardDescribe the mechanism through which a potassium channel can selectively move K* ions across a membrane while preventing the movement of smaller Na* ions.arrow_forward
- Irritability in animals can be measured or determined using the right methodology and apparatus. Cite then describe at least three (3) laboratory apparatus used to measure irritability.arrow_forwardWhy is this wrong?arrow_forwardSomeone goes for a jog first thing in the morning and encounters a squadron of javelinas, causing a release of epinephrine. Some of this circulating epinephrine binds to a G-alpha-s coupled receptor (GPCR) on the surface of muscle cells. Which of the following would occur in the muscle cell as a result of this activation? Nitric oxide synthesis would increase. cyclic AMP (cAMP) activity would increase. Phospholipase C (PLC) would hydrolyze (cut) the molecule PIP2. The levels of adenylate cyclase activity would decrease. The levels of adenylate cyclase activity would decrease. Which ligand is CORRECTLY matched with its characteristic? Group of answer choices Glucagon: stimulates the activation of the mitogen activated protein (MAP) kinase pathway Nitric oxide (NO): must bind to its target protien withn a few seconds because NO degrades rapidly Steroid hormone: produces a response in its target cells within seconds Acetylcholine: hydrophobic molecule that binds to…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Excretory System; Author: Amoeba Sisters;https://www.youtube.com/watch?v=q5qaGHfdmYM;License: Standard youtube license