DOC PREVIEW
UGA BIOL 1108 - Homeostasis

This preview shows page 1-2-3-4 out of 11 pages.

Save
View full document
View full document
Premium Document
Do you want full access? Go Premium and unlock all 11 pages.
Access to all documents
Download any document
Ad free experience
View full document
Premium Document
Do you want full access? Go Premium and unlock all 11 pages.
Access to all documents
Download any document
Ad free experience
View full document
Premium Document
Do you want full access? Go Premium and unlock all 11 pages.
Access to all documents
Download any document
Ad free experience
View full document
Premium Document
Do you want full access? Go Premium and unlock all 11 pages.
Access to all documents
Download any document
Ad free experience
Premium Document
Do you want full access? Go Premium and unlock all 11 pages.
Access to all documents
Download any document
Ad free experience

Unformatted text preview:

10/8/14&1&1&Animal&Form&&and&Func3on:&&Homeostasis&and&Thermoregula3on&Lesson&20&::&BIOL&1108&::&8&October&2014&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&define&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&10/8/14&2&3&4&10/8/14&3&5&Animal&Form&and&Func3on:&&Homeostasis&and&Thermoregula3on&TINY&HOUSES&6&10/8/14&4&What%do%you%need%to%%regulate%temperature%%in%a%one%room%house?%7&Set%Point:%Integra8on%Center%+/<%?%%Sensory%Signal%Effector%CV:%Disturbance%(environment)%%Sensor%CC:%Sensory%%Signal%START&HERE!&&What&do&you&want&to&control?&8&70ºF87ºFThermometerThermostat87ºF > 70ºFAC unitHot dayCool room temp10/8/14&5&Set&Point&Integra3on&Center&+/a&?&Generate&error&signal&Sensory&Signal&Effector&Controlling&Variable&(CV)&Disturbance&(environment)&&Sensor&Controlling&Condi3on&(CC)&Sensory&&Signal&START&HERE!&&What&do&you&want&to&control?&What&is&the&&current&condi3on?&IF&there&is&a&difference&=&generate&error&signal&Compares&sensor&and&set&point&Structure&that&can&make&a&difference&to&&controlled&condi3on&What&should&the&condi3on&be?&What&the&effector&does&CV&will&change&CC&in&the&right&direc3on&&Nega3ve&feedback&9&Define:&HOMEOSTASIS&10&DampensReturns to normalOn/OffThe ability to maintain a (+/-) stable environment, independent of the (+/-) external environment.10/8/14&6&Willow&ptarmigan&Fluctua8on%is%an%indica8on%%of%regula8on%11&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&amplifies&the&change.&How%would%you%define%a%nega8ve%feedback%loop?%12&10/8/14&7&Unit:&Animal&Form&and&Func3on&Thermoregula3on:&Heat&gain&and&loss&13&Animal&Form&and&Func3on:&Thermoregula3on&Abio3c&Factor:&Temperature&visibleearth.nasa.gov&14&EvaporationConvectionConductionRadiation10/8/14&8&Animal&Form&and&Func3on:&Thermoregula3on&Abio3c&Factors&www.wallpaper77.com&15&Animal&Form&and&Func3on:&Thermoregula3on&Bio3c&16&Endotherm:(Internal)-Metabolism-Organisms regulating heat themselvesEctotherm:(external)heat source from something other than themselvesTemperatureTextStream temp (convection), elevation, sunlight, shade, the sides of the mt (shade or sun)10/8/14&9&Consider&heat&gain/loss&and&environmental&interac3on&rela3ve&to:&organisms’&physiological,&morphological,&and&behavioral&adapta3ons&&&Class&Diagram&Ac3vity&17&18&Animal&Form&and&Func3on:&Thermoregula3on&&Class&Diagram&Ac3vity&Radiation (sun):- Move to shade or sun (behavior)- elevation (amount radiation)Swimming (organisms from land):Exotherms:- Blood vessels closer to suraceAs you are walking across campus during the midday of summer, receptors in your skin register that your core body temperature has varied from its normal range (36.5 – 37.5 C°). This change in temperature is registered in your brain (the master gland), which then secretes a hormone that causes you to sweat out of pores in your skin. Using this scenario, fill out the homeostatic feedback diagram provided.10/8/14&10&Set%Point:%Integra8on%Center%+/<%?%%Sensory%Signal%Effector%CV:%Disturbance%(environment)%%Sensor%CC:%Sensory%%Signal%START&HERE!&&What&do&you&want&to&control?&19&Animal&Form&and&Func3on:&&Homeostasis&and&Thermoregula3on&Today ’s&learning&objec3ves:&• Prac3ce&observing&animal&FORM&and&rela3ng&it&to&FUNCTION&&• Be&able&to&define&homeostasis&• Be&able&to&draw&a&general ized&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&Think&about:&Burmese&python&ques3on&(next&slide).&20&Hot sunny daySkin receptors39ºC37ºCHypothalamus39ºC > 37ºCSweat Glands (evaporation)lowered body tempHormonesInternal body


View Full Document

UGA BIOL 1108 - Homeostasis

Documents in this Course
Load more
Download Homeostasis
Our administrator received your request to download this document. We will send you the file to your email shortly.
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 2 2 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?