Human Physiology
15th Edition
ISBN: 9781259864629
Author: Fox, Stuart Ira
Publisher: Mcgraw-hill Education,
expand_more
expand_more
format_list_bulleted
Question
Chapter 1, Problem 19RA
Summary Introduction
To review:
The consequences of maintenance of physiological regulatory mechanisms by positive feedback rather than by negative feedback.
Introduction:
The feedback mechanism in biology allows the living organism to respond against the changes in the surroundings. Feedback loops can either increase or decrease the change. If an output amplifies the change in a system producing it, it is called a positive feedback loop. If an output reduces the input then it is known as a negative feedback loop.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Imagine that you've lived until the ripe old age of 99 years old. While your
stomach cells are 3 days old, you skill cells are 42 days old, how old would your
neurons might be?
3 minutes old
3 days old
3 weeks old
42 days old
99 years old
Define the following cellular movements
• Epibology
• Delamination
• Ingression
• Intercalation
• Convergent Extension
[PLEASE DO NOY COPY ON GOOGLE]
What sort of cellular changes would you expect a sailor sick with scurvy to experience?
O Their collagen (an extracellular matrix component) would be diminished, resulting in fewer binding sites for
integrins. The end result would be less adherent cells.
O Their collagen (a cytoskeletal fiber) would be diminished, resulting in a loss of contractile motion within the
cell, affecting both cell migration and muscle function.
Chapter 1 Solutions
Human Physiology
Ch. 1 - How has the study of physiology aided, and been...Ch. 1 - Describe the steps involved in the scientific...Ch. 1 - Describe the different types of trials a new drug...Ch. 1 - Define homeostasis and describe how this concept...Ch. 1 - Define negative feedback and explain how it....Ch. 1 - Prob. 4CPCh. 1 - Explain how the secretion of a hormone is...Ch. 1 - List the four primary tissues and describe the...Ch. 1 - Compare and contrast the three types of muscle...Ch. 1 - Describe the different types of epithelial...
Ch. 1 - Prob. 7aCPCh. 1 - Describe the different types of connective tissues...Ch. 1 - State the location of each type of primary tissue...Ch. 1 - Describe the functions of nervous, muscle, and...Ch. 1 - Describe the functions of the epidermis and...Ch. 1 - Prob. 9CPCh. 1 - Glands are derived from...Ch. 1 - Cells joined tightly together are characteristic...Ch. 1 - Cells are separated by large extracellular spaces...Ch. 1 - Blood vessels and nerves are usually located...Ch. 1 - Most organs are composed of...Ch. 1 - Sweat is secreted by exocrine glands. This means...Ch. 1 - Which of these statements about homeostasis is...Ch. 1 - In a negative feedback loop, the effector produces...Ch. 1 - A hormone called parathyroid hormone acts to help...Ch. 1 - Which of these consists of dense parallel...Ch. 1 - Prob. 11RACh. 1 - Prob. 12RACh. 1 - Describe the structure of the various epithelial...Ch. 1 - Compare bone, blood, and the dermis of the skin in...Ch. 1 - Describe the role of antagonistic negative...Ch. 1 - Using insulin as an example, explain how the...Ch. 1 - Describe the steps in the development of...Ch. 1 - Why is Claude Bernard considered the father of...Ch. 1 - Prob. 19RACh. 1 - Prob. 20RACh. 1 - Why are interactions between the body-fluid...Ch. 1 - Prob. 22RACh. 1 - Give examples of adult stem cells and explain...Ch. 1 - Prob. 24RACh. 1 - Prob. 25RACh. 1 - Prob. 26RA
Knowledge Booster
Similar questions
- Why each subsystem is important for life?arrow_forwardAccording to your hypothesis about the relationship between temperature and the rate of cellular respiration (as temperature increases, rate of cellular respiration increases and vice versa), answer the following questions: What was the reason that you thought your independent variable would affect the dependent? That is, what cell structures do you think would be affected by the independent variable you chose? (Think of enzymes, membranes, organelles, etc.) What was the reason for the relationship you chose? That is, why did you think the independent variable would make the dependent increase or decrease? What would the results (and graph) look if they did NOT support your claim/hypothesis?arrow_forwardYou want to find a drug which inhibits this calcium response pathway in normal cells where it is activated by a signal molecule (red dot). You decide to do mass screening to find that drug. You obtain a large collection of chemical compounds to screen. You make sure that they do not kill the cells and you test them in the following way: you treat the cells with the compounds and then stimulate the cells with the signal molecule (red dot) and analyze the response. Only one compound had an effect you call it drug#1. When the cells are treated with drug#1, and then stimulated with the signal molecule, you find that: 1) cytosolic calcium concentration is low, 2) DAG is not found in membranes, and 3) G-proteins binds GTP normally in drug-treated cells. Give a possible mechanism of action of this drug.arrow_forward
- Please answer this following questions in your own words: Question 1: what is homeostasis? Give one example of a normal positive feedback loop and a one example of a negative feedback loop. Question 2: Give an example of an abnormal negative feedback loop and an example of an abnormal positive feedback loop?arrow_forwardFill in the following boxes:arrow_forwardWhich of the following is NOT part of the cell theory? All living things are composed of one or more cells Cells are the basic unit of life Cells MUST contain DNAarrow_forward
- Which of the following correctly lists the levels of organization from least complex to most complexarrow_forwardWhen a sea horse sees a predator, its nervous system kicks into high gear. A charge reversal wave will travel the length of the nerve cell. When the impulse reaches the end of one nerve cell it must travel across the synapse to the next cell. Neurotransmitters exit one cell and enter another via a method of active transport called, exocytosis. Which structure is responsible for transmitting signals from one nerve cell to the next via this process? Ribosome O Cell membrane Nucleus O Endoplasmic reticulumarrow_forwardEach of the following is a main idea of the cell theory EXCEPT: O all cells are similar in structure and function. O all organisms are composed of cells. O all cells come from pre-existing cells. O the cell is the basic unit of life.arrow_forward
- The Miller Urey experiment is a classic experiment that provided evidence that; Life could be created in a lab The earliest forms of life were unicellular Some of the compounds required for life could assemble spontaneously Cells could work together to form tissues and ultimately organ systemsarrow_forwardWhich of the following is an example of a normal physiologic process that uses a positive feedback loop? blood pressure regulation childbirth regulation of fluid balance temperature regulationarrow_forwardEach level of biological organization has emergent properties that arise from interactions at a lower level. For example, cells have a capacity for inheritance that the molecules making up the cell do not. Can you think of an emergent property of a tissue? Of an organ that contains that tissue?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 LearningAnatomy & PhysiologyBiologyISBN:9781938168130Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark WomblePublisher:OpenStax College
- Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxBiology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Anatomy & Physiology
Biology
ISBN:9781938168130
Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble
Publisher:OpenStax College
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning