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Biology A Level
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An Introduction to Homeostasis
Biology A Level | Homeostasis
During this lesson you will learn how to:
- Define homeostasis
- Give examples of conditions that need to be controlled
- Explain the importance of homeostasis
- Describe the principle of negative feedback
- Label a general negative feedback loop diagram
Thermoregulation
Biology A Level | Homeostasis
During this lesson you will learn how to:
- Recall the importance of controlling body temperature.
- Describe ways in which the body gains and loses heat.
- Explain the mechanisms that return body temperature back to norm levels
- Represent thermoregulation as a negative feedback loop.
Osmoregulation
Biology A Level | Homeostasis
During this lesson you will learn how to:
- Recall the importance of controlling water potential.
- Describe the structure of the kidney
- Explain the role of ADH in osmoregulation
- Represent osmoregulation as a negative feedback loop.
Regulation of Blood Glucose Concentration
Biology A Level | Homeostasis
During this lesson you will learn how to:
- Recall the importance of controlling blood glucose.
- To describe the structure of the pancreas.
- Explain the role of insulin and glucagon in the regulation of blood glucose concentration
- Represent control of blood glucose as a negative feedback loop.
Positive feedback and diabetes
Biology A Level | Homeostasis
During this lesson you will learn how to:
- Recall the importance of negative feedback in homeostasis.
- Compare negative feedback to positive feedback .
- Compare the difference between type 1 and type 2 diabetes.
- Explain the treatment options for both type 1 and type 2 diabetes.
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