Biology
12th Edition
ISBN: 9781260494570
Author: Raven, Peter
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Question
Chapter 41, Problem 5A
Summary Introduction
Introduction:
Feedback mechanisms are the general mechanisms of nervous or hormonal regulation in animals. Negative feedback is when the response diminishes the original stimulus, whereas positive feedback is when the response enhances the original stimulus.
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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 the following situations illustrates that a homeostatic mechanism is not operating properly?
a. acute high blood pressure
b. normalized blood glucose levels
c. dailt fluid intake equals dailty fluid output
d. all of these illustrate homestatic mechanisms operating properly
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 true
Chapter 41 Solutions
Biology
Ch. 41.1 - Prob. 1LOCh. 41.1 - Prob. 2LOCh. 41.2 - Prob. 1LOCh. 41.2 - Prob. 2LOCh. 41.2 - Prob. 3LOCh. 41.3 - Prob. 1LOCh. 41.3 - Differentiate among forms of connective tissue.Ch. 41.3 - Prob. 3LOCh. 41.4 - Prob. 1LOCh. 41.4 - Prob. 2LO
Ch. 41.5 - Prob. 1LOCh. 41.5 - Prob. 2LOCh. 41.6 - Prob. 1LOCh. 41.6 - Explain the functional organization of these...Ch. 41.7 - Explain homeostasis.Ch. 41.7 - Prob. 2LOCh. 41.7 - Prob. 3LOCh. 41.8 - Prob. 1LOCh. 41.8 - Prob. 2LOCh. 41.8 - Prob. 3LOCh. 41 - Data analysis What does this graph predict about...Ch. 41 - Prob. 2DACh. 41 - Prob. 1IQCh. 41 - Epithelial tissues do all of the following except...Ch. 41 - Prob. 2UCh. 41 - Connective tissues include a diverse group of...Ch. 41 - Prob. 4UCh. 41 - Prob. 5UCh. 41 - The function of neuroglia is to a. carry messages...Ch. 41 - Skeletal muscle cells are a. large multinucleate...Ch. 41 - Connective tissues, although quite diverse in...Ch. 41 - Prob. 1ACh. 41 - Prob. 2ACh. 41 - Suppose that an alien virus arrives on Earth. This...Ch. 41 - Homeostasis a. is a dynamic process. b. describes...Ch. 41 - Prob. 5ACh. 41 - The three types of muscle all share a. a structure...Ch. 41 - Suppose that you discover a new disease that...Ch. 41 - Which organ systems are involved in regulation and...Ch. 41 - We have all experienced hunger pangs. Is hunger a...Ch. 41 - Why is homeostasis described as a dynamic process?...
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Similar questions
- Which of the following occurs in the legs of goose (bird) standing on a frozen pond? Group of answer choices A. Warm blood from the body flows toward the legs of the bird. B. Cool blood from the feet flows toward the body of the bird. C. Heat is transferred from warm blood to cooler blood, reducing loss of heat to the environment. D. A and C E. A, B, and Carrow_forwardHeat exchange with the environment depends on the surface area-to-volume ratio of the body. Assuming that the body shape of an animal is at least somewhat spherical, a considerable decrease in body size would the surface area-to-volume ratio, and the ability to exchange heat with the environment would A. increase; increase B. increase; stay about the same C. increase; decrease D. decrease; increase E. decrease; stay about the samearrow_forwardWhich of the following is NOT a mechanism to maintain the body’s internal temperature? A. Fluid has a high capacity for heat, so it requires a great deal of energy to raise its temperature. B. Warmed fluids from the body’s surface return to the body’s core, thus heating the body. C. Fluid acts as a coolant by increasing the blood flow from the warm body core to the peripheral tissue, thus cooling the body. D. Fluid is evaporated as sweat from the skin’s surface, thus cooling the body.arrow_forward
- How does low temperature effect the life processes of cold-blooded animals? Select one: a. increases the procceses of heat emission b. decreases the procceses of heat emission c. decresaes heat buildup d. increases heat buildup e. changes the daily activityarrow_forwardWhich is/are example(s) of negative feedback? Select ALL that apply A. when your body gets too hot, the body starts to sweat, which helps cool you down B. when a pathogen is detected, an immune cell releases cytokines, which signal other cells to release cytokines, increasing the total number released over time C. when too much glucose builds up in the blood, insulin is released so that cells will absorb the glucose D. when you have a cut, platelets activate and work to form a clot, which signals more and more platelets to activate and help form the clotarrow_forwardWhich of the following is part of the initial response to cold temperature? a. Panting b. Sweating C. Shunting of the blood to the core regions of the body d. Vasodilation of peripheral blood vessels e. Decreased metabolismarrow_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_forwardWhich of the following is an example of negative feedback? A. High blood sugar will increase the viscosity of blood plasma (plasma is concentrated). In response, water is drawn into the plasma from surrounding tissues in order to dilute the plasma B. Breathing rate increases during exercise to provide more oxygen to muscle cells. Heart rate also increase to increase the speed at which the oxygen is delivered. C. During digestion cells in the stomach produce HCl to begin breaking down proteins, the HCl then stimulates the release of pepsin, to continue breaking down proteins. D. In the immune system, antibodies produced by B-cells bind to antigens, which activates other B-cells to produce antibodies of the same kind.arrow_forwardWhat could happen due to a failure in homeostasis? Select one: a. The accumulation of waste products. b. The loss of excess water from the body. c. Maintaining excess levels of sugar in the body. d. All of the above are potential outcomes of failure of homeostasis.arrow_forward
- Outline the events that shows the negative feedback loop that happens when you (choose only one): get a wound, consume too much sugar, get hot by being in a humid place, feel cold, drink too much water, touch a hot surface, get pinched or pricked, or are in a poorly lit room. You are encouraged to do research on the mechanisms that enables the responses for these.arrow_forwardWhich of the following is a correct statement about endothermic organisms? A. Compared to ectotherms, since they cannot have their internal body temperature leave the thermoneutral zone, they are limited with regard to the types of environments they can live in. B. Endotherms do not typically use passive mechanisms for thermoregulation, such as insulation, because they utilize metabolic energy to control body temperature. C. The trait of endothermicity is a derived characteristic in mammalian animals and is not seen in other phylogenetic branches in the Metazoan Clade. D. All endotherms possess sweat glands, which allow them to conduct evaporative cooling to lower their body temperature when needed. E. None of the abovearrow_forwardOne among the following statements is true regarding temperature regulation: A. Excess blankets or bed coverings interfere with heat loss through radiation and conduction. B. Wet bed linen or gowns promote with convection and conduction. C. Coverings interfere with heat conservation. D. All of the above ationale:arrow_forward
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