Chapter 32: Digestive and Excretory Systems

Nutrients

Interactive diagram showing different nutrients and how the body uses them

http://www.teachersdomain.org/asset/tdc02_int_bodyneedsweb/

(Main Idea: Six types of nutrients help to maintain homeostasis.)

 

 

Diet and Exercise

Interactive animation describing the components of a healthy diet

http://www.bbc.co.uk/schools/gcsebitesize/science/aqa/keepinghealthy/dietandexerciseact.shtml

(Main Idea: Meeting nutritional needs supports good health.)

 

 

Digestion and Absorption

Animation depicting the processes of food digestion and absorption by the body

http://www.pennmedicine.org/encyclopedia/em_DisplayAnimation.aspx?gcid=000041&ptid=17

(Key Concepts: The digestive system breaks down food into simpler molecules.

 

 

Peristalsis

Animation showing the role of peristalsis in digestion

http://www.pennmedicine.org/encyclopedia/em_DisplayAnimation.aspx?gcid=000097&ptid=17

(Main Idea: Digestion begins in the mouth and continues in the stomach.)

 

 

Fat Digestion

Short tutorial explaining how bile helps digest fat

http://www.biologyinmotion.com/bile/index.html

(Main Idea: Digestion begins in the mouth and continues in the stomach.)

 

 

Kidneys

Article explaining how kidneys are like water treatment plants for the body, with an interactive kidney diagram

http://www.kidneyschool.org/m01/3/

(Main Idea: The kidneys help to maintain homeostasis by filtering the blood.)