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KEy question: What is this new word
KEy question: What is this new word
Task 1 - Read the spec
Task 1 - Read the spec
This is what the exam board (AQA) say you need to know.
Task 2 - DO now
Task 2 - DO now
Definition of homeostasis.
Homeostasis is the maintenance of a constant internal environment.
Use this definition to try and link the pictures below.
Write you answer on the companion sheet.
Be prepared to discuss it in class.
Task 3 - GCSE POD - Intro video
Task 3 - GCSE POD - Intro video
High+Quality_2-0_Content_Biology_BIOL_02_BIOL_2006_GCSEPod_Biology_Homeostasis.mp4TASK
TASK
Then on the companion sheet, complete the spider diagram.
Then on the companion sheet, complete the spider diagram.
Do this by adding information to the spider diagram. The diagram has been started for you.
Do this by adding information to the spider diagram. The diagram has been started for you.
Task 4 - Negatie feedback cycle
Task 4 - Negatie feedback cycle
A negative feedback mechanism is an important type of control that is found in homeostasis. A negative feedback control system responds when conditions change from the ideal or set point and returns conditions to this set point. There is a continuous cycle of events in negative feedback.
In general this works by:
if the level of something rises, control systems reduce it again
if the level of something falls, control systems raise it again
Fill in the feedback loop diagram on the companion sheet using the keywords provided
Task 5 - in your own words
Task 5 - in your own words
In your own words
Describe what homeostasis is, and
Describe the stages of the negative feedback loop.
Complete the companion sheet
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