UGA BIOL 1108 - Homeostasis (11 pages)

Previewing pages 1, 2, 3, 4 of 11 page document View the full content.
View Full Document

Homeostasis



Previewing pages 1, 2, 3, 4 of actual document.

View the full content.
View Full Document
View Full Document

Homeostasis

102 views


Pages:
11
School:
University of Georgia
Course:
Biol 1108 - Principles Bio Ii
Principles Bio Ii Documents

Unformatted text preview:

10 8 14 Animal Form and Func3on Homeostasis and Thermoregula3on Lesson 20 BIOL 1108 8 October 2014 1 Unit Animal Form and Func3on Today s Topic Homeostasis Thermoregula3on Today s learning objec3ves Prac3ce observing animal FORM and rela3ng it to FUNCTION Be able to de ne homeostasis Be able to draw a generalized homeosta3c feedback diagram and understand its terminology Understand two evolu3onary strategies animals have for thermoregula3on Consider organisms physiological morphological and behavioral adapta3ons for thermoregula3ng within their environments 2 1 10 8 14 3 4 2 10 8 14 Animal Form and Func3on Homeostasis and Thermoregula3on 5 TINY HOUSES 6 3 10 8 14 What do you need to regulate temperature in a one room house 7 Set Point 70 F 87 F 70 F 87 F Sensory Signal Sensory Signal Thermostat Integra8on Center Thermometer AC unit Sensor E ector CC START HERE What do you want to control CV Cool room temp Hot day Disturbance environment 8 4 10 8 14 IF there is a di erence generate error signal Set Point a Generate error signal What should the condi3on be Sensory Signal Sensory Signal Integra3on Center Compares sensor and set point Sensor What is the current condi3on On Off Nega3ve Dampens feedback Returns to normal Controlling Condi3on CC START HERE What do you want to control E ector Structure that can make a di erence to controlled condi3on Controlling Variable CV Disturbance environment What the e ector does CV will change CC in the right direc3on 9 De ne HOMEOSTASIS The ability to maintain a stable environment independent of the external environment 10 5 10 8 14 Willow ptarmigan Fluctua8on is an indica8on of regula8on 11 How would you de ne a nega8ve feedback loop A A process whereby a change in a ini3al condi3on triggers a response that counteracts the ini3al change B A process whereby a change in an ini3al condi3on triggers a response that reinforces or ampli es the change 12 6 10 8 14 Unit Animal Form and Func3on Thermoregula3on Heat gain and loss Radiation



View Full Document

Access the best Study Guides, Lecture Notes and Practice Exams

Loading Unlocking...
Login

Join to view Homeostasis and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view Homeostasis and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?