Biology: Life on Earth with Physiology (11th Edition)
11th Edition
ISBN: 9780133923001
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 32, Problem 3MC
Summary Introduction
Introduction:
Cells require a constant environment for their optimum activity. Any change in the surrounding has an adverse effect on the cellular
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
In a negative feedback mechanism,a. the output cancels the input.b. there is a fluctuation above and below the average.c. there is self-regulation.d. a regulatory center communicates with other body parts.e. All of these are correct.
Match the body temperature control item to the appropriate location in the negative feedback loop.
Effector when variable is low
Effector when variable is high
Control center
Sensor
Controlled variable
A.
Muscles for shivering and goosebumps
B.
Nerves in skin
C.
Brain
D.
Sweat glands
E.
Temperature
Which of these statements about homeostasis is true? a.The internal environment is maintained absolutely constant. b.Negative feedback mechanisms act to correct deviations from a normal range within the internal environment. c.Homeostasis is maintained by turning effectors on and off. d.All of these are true.
Chapter 32 Solutions
Biology: Life on Earth with Physiology (11th Edition)
Ch. 32.1 - Prob. 1CSCCh. 32.1 - define homeostasis and explain why organisms...Ch. 32.1 - Prob. 1HYEWCh. 32.1 - What would happen if a cold, shvering mammal...Ch. 32.1 - Prob. 2CSCCh. 32.1 - explain the difference between ectotherms and...Ch. 32.1 - Prob. 3CYLCh. 32.1 - Prob. 4CYLCh. 32.2 - Prob. 1CSRCh. 32.2 - By pumping carbon dioxide and other greenhouse...
Ch. 32.2 - Prob. 1CYLCh. 32.2 - Prob. 1ETCh. 32.2 - describe the four types of tissues?Ch. 32.2 - name and describe the major human organ systems?Ch. 32 - Why does life on land present particular...Ch. 32 - The ability of the body to maintain its internal...Ch. 32 - Which of the following statements is False? a....Ch. 32 - Define homeostasis, and explain how negative...Ch. 32 - Prob. 2ACCh. 32 - Prob. 2FIBCh. 32 - Prob. 2MCCh. 32 - Define and compare ectotherms and endotherms....Ch. 32 - Imagine you are a health care professional...Ch. 32 - Prob. 3FIBCh. 32 - Prob. 3MCCh. 32 - Prob. 3RQCh. 32 - Glands with ducts connecting them to the...Ch. 32 - Prob. 4MCCh. 32 - Prob. 4RQCh. 32 - Prob. 5FIBCh. 32 - Which of the following statements is True? a....Ch. 32 - Prob. 5RQCh. 32 - what property distinguishes connective tissue from...Ch. 32 - Prob. 7RQ
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
- a positive-feedback system is one in which a. a variable is charged in the opposite direction to the original change that initiated the system b. a variable is changed in the same direction as the original change that initiated the system c. two opposiding variables are played against each other d. the initiating variable is always increasedarrow_forwardIn negative feedback,a. a change causes responses that counteract the change.b. a response to a change damages the body.c. a change produces a response that enhances the change.d. a response to a change permanently alters the body.arrow_forwardWhich of the following is true of positive feedback? a. The change is opposite that of negative feedback b. The effector turns off the response c. The change is amplified What is the difference between the answers a & b?arrow_forward
- Sweating is an example of variable. It is also an example of negative feedback mechanism. a. Both statements are true b. Both statements are false c. First is true, Second is false d. First is false, Second is truearrow_forwardWhich of the following is incorrect?a. Equilibrium requires a constant input of energy.b. Positive feedback is less common in nature than negative feedback.c. Homeostasis does not imply that a given variable is unchanging.d. Fever is an example of resetting a set point.e. Efferent pathways carry information away from the integrating center of a reflex arc.arrow_forwardMark the following statements as true or false. If a statement is false, correct it to make a true statement. a. Structure and function are closely related at the organ level only. b. Homeostasis is the condition of having a dynamic equilibrium of the internal environment. c. Positive feedback loops are triggered by a deviation from a homeostatic set point and are shut down when conditions return to the set point. d. The effects of negative feedback loops are amplified to create an escalating response. e. Cell-cell communication is required to coordinate the activities of the whole bodyarrow_forward
- Which of the following physiologlcal responses is an example of positive feedback? . The body's production of red blood cells, which transport oxygen from the lungs to other organs, is stimulated by low concentrations of oxygen. b. A high concentration of glucose in the blood causes deeper, more rapid breathing, which expels carbon dioxide. C. Pressure of the baby's head near the opening of the uterus stimulates uterine contractions which cause greater pressure against the uterine opening. d. Heightened body temperature induces sweating which disposes of metabolic heat and cools the body.arrow_forwardWhich of these homeostatic mechanisms in the body are examplesof positive feedback, and which are examples of negative feedback?Why?a. The adrenal glands produce epinephrine in response to a hormone produced by the pituitary gland in times of stress; the pituitary gland senses the epinephrine in the blood and stopsproducing the hormone.b. As the bladder fills with urine, pressure sensors send messagesto the brain with increasing frequency, signaling that the bladdermust be emptied. The more the bladder fills, the more messagesare sent.c. When you drink an excess of water, specialized cells in yourbrain, as well as stretch receptors in your heart, detect theincrease in blood volume. Both signals are transmitted to thekidneys, which increase the production of urine.arrow_forwardwhich of the following scenarios can be classified as a negative feedback loop? a. increase in oxytocin caused by increased contractions b. increase in blood pressure to reduce heart rate c. increase in testosterone to help increase a fight or flight response d. increase in platelet production to help increase blood clottingarrow_forward
- Which of the following is a way that the body determines how much of a certain chemical, protein, enzyme, or response is needed to maintain homeostasis? A. Resource limitation, B. Feedback inhibition, C. Kickback inhibition, D. Signal looparrow_forwardIn negative feedback, the variable being regulated is changed in the ______ direction, while in positive feedback the variable is changed in the ______ direction. A. same, opposite B. negative, positive C. opposite, same D. decreasing, increasingarrow_forwardWhen you open a pizza box, particles of the pizza enter the air around you, and enter your nose when you breathe in. Which of the following internal control systems is responsible for gathering information about the conditions inside and outside of the body? * A. Communicating system B. Control center C. Sensor D. Thalamus 2. Which of the following hormonal imbalance explains obesity among women? * A. Low level of estrogen weakens the bone. B. Excess levels of androgen make oil glands extra productive. C. Changing estrogen levels affecting serotonin or “happy hormone”. D. Decreasing estrogen level stimulates a craving for fatty, salty, and sweet foods.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
What is Homeostasis? | Physiology | Biology | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=quQr6X1Q58I;License: CC-BY