Y3_TV3E_LSN7

• Biologie
• Middelbare school
• havo
• Leerjaar 3

Have ready:

• TB p. 96
• Your Notebook
• This lessonup
• Google Classroom

Topic 1 Lesson 7

Homeostasis

Basics

• I know what homeostasis is
• I know how the body can keep homeostasis

Learning goals:

• homeostasis
• negative feedback
• positive feedback
• sensor
• controlor
• effector

Keywords:

READ:

TB. p.96-97

• Integumentary system
• Constrict
• Dilate
• Shivering
• Evaporate
• Goosebumps

All organs and organ systems working together,creating a balance inside your body.

Negative and positive feedback loops are used to maintain this balance. 

Homeostasis

The sensor registers an imbalance, the controller tells the effector how to respond. This returns to a balance.

Negative feedback loop

High

Low

Low

High

too high

too low

Hypothalamus

The sensor registers an imbalance, the controller tells the effector how to respond. This creates a snowball effect.

Positive  feedback loop

• I know what homeostasis is
• I know how the body can keep homeostasis

Learning goals:

Today I have learned:

1.

2. 

Summary of the day: