Homeostasis – Regulation of Blood Sugar Levels.pptx

how the body maintains its internal and external environment

1. Homeostasis – Regulation of Blood Sugar Levels Grade: 11

2. Lesson Objective(s) By the end of the lesson, learners should be able to: Identify how the body responds to changes in blood sugar levels. Explain the basic roles of insulin and glucagon using a car-driving analogy .

3. Lets recap Homeostasis: maintaining a constant internal environment within the body negative feedback mechanisms Negative feedback mechanisms operate in the human body to detect changes or imbalances in the internal environment and to restore the balance.

4. Regulation of Blood Sugar Levels Think of Driving a Car You use the brake to slow down, the accelerator to speed up. The driver controls the car using road signs .

5. Drank soda → Blood sugar rises → Use brake (insulin )

6. exercise → Blood sugar drops → Use accelerator (glucagon )

7. Key Takeaway Homeostasis keeps you safe. Blood sugar must stay balanced. The car analogy helps us understand how the body controls it.