3. Homeostasis

By the end of this section you should be able to:

1. Explain the importance of homeostasis.

Essential Vocabulary

HomeostasisHomeostatic mechanism

2. Explain how positive feedback differs from negative feedback.

Essential Vocabulary

Positive feedbackNegative feedback

3. Describe how blood clotting mechanisms demonstrates positive feedback.

Essential Vocabulary

Platelets

4. Explain how blood glucose levels are regulated by insulin through negative feedback.

Essential Vocabulary

Insulin

5. Compare and contrast passive and active transport of materials across a plasma membrane.

Essential Vocabulary

Passive transport Active transportConcentration gradient

6. Model how various materials, including water, pass through membranes.

Essential Vocabulary

DiffusionFacilitated diffusionOsmosisProtein pumpEndocytosisExocytosis

7. Explain how lysosomes help maintain homeostasis my recycling waste and breaking down macromolecules and old cell parts into monomers.

Essential Vocabulary

LysosomesMacromoleculesMonomerEnzymes

The activities below should be used to review essential vocabulary

Use the following quizzes to test your knowledge of essential vocabulary. You need to scroll to see all of the questions and select the "submit" button to complete the quiz and get a score.

Homeostasis

This is a Content Quiz. You need to scroll to see all of the questions and select the "submit" button to complete the quiz and get a score.

This is a Skills Quiz to help you review and apply science practices to the content from this module. You need to scroll to see all of the questions and select the "submit" button to complete the quiz and get a score.

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