Resource Binder SBI 4U E: Homeostasis
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Transcript of Resource Binder SBI 4U E: Homeostasis
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Resource BinderResource BinderSBI 4USBI 4U
E: HomeostasisE: Homeostasis
Alessia, Laura, Paul, & Sheena
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AGENDAAGENDA
Essential Question Hook Unit Plan Historical Topic: History of Homeostatic Systems Dry Lab Wet Lab STSE Culminating Activity Recent Research: Article Analysis and Forum
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Essential QuestionEssential Question
“What is the effect on homeostasis of the introduction of performance-enhancing drugs?”
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HookHookMouse Party
– Introduces homeostasis of neural systems– Important hook for STSE Activity– http://learn.genetics.utah.edu/content/addiction/drugs/mouse.html
– Not meant to endorse drug use!
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Dry LabDry Lab
The Urinary System Exposed!– the urinary system– feedback mechanisms– water balance– effects of alcohol
links to the STSE activity!
Image from http://www.cic-caracas.org/departments/science/Topic12.php
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Dry lab – Part ADry lab – Part A
NaCl
NaCl, urea, H2O
H2OH2O, HCO3-, NaCl, K+, nutrients
H+, NH3
H+, K+ NaCl, H2O, HCO3-
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Dry lab – Part BDry lab – Part B Comparing solutes in plasma, nephron and urine Sample question: What happened to the levels of urea
and ammonia after filtration? Explain why this occurs.
Table 1. Concentrations of solutes in the Bowman's capsule, glomerulus, loop of Henle and collecting duct in g/100 mL (from Nelson 2003)
Solute Bowman’s capsule Glomerulus Loop of Henle Collecting duct
protein 0 0.8 0 0
urea 0.05 0.05 1.5 2
glucose 0.1 no data 0 0
chloride (Cl-) 0.37 no data no data 0.6
ammonia (NH3)0.0001 0.0001 0.0001 0.04
substance X 0 9.15 0 0
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Dry lab – Part CDry lab – Part CAntidiuretic hormone (ADH)Negative feedback systemEffect of alcohol on ADH and urine
formation
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Wet LabWet Lab
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STSE Culminating ActivitySTSE Culminating Activity
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Article Analysis and ForumArticle Analysis and Forum