Presentation is loading. Please wait.

Presentation is loading. Please wait.

Lesson: Digestive System. Science Differentiation in action All living things are made up of cells. Food has to be broken down before it is transported.

Similar presentations


Presentation on theme: "Lesson: Digestive System. Science Differentiation in action All living things are made up of cells. Food has to be broken down before it is transported."— Presentation transcript:

1 Lesson: Digestive System

2 Science Differentiation in action All living things are made up of cells. Food has to be broken down before it is transported to every cell.

3 Science Differentiation in action Our digestive system breaks down food and absorbs it so it can be transported around our bodies.

4 Science Differentiation in action mouth oesophagus stomach pancreas small intestine large intestine liver Parts of our digestive system

5 Science Differentiation in action mouth where food is chewed and mixed with saliva Parts of our digestive system

6 Science Differentiation in action the tube that carries food to the stomach oesophagus Parts of our digestive system

7 Science Differentiation in action stomach stores food and mixes it with digestive juices Parts of our digestive system

8 Science Differentiation in action small intestine the tube where broken down food is absorbed into the blood Parts of our digestive system

9 Science Differentiation in action passes water back into the blood leaving solid waste large intestine Parts of our digestive system

10 Science Differentiation in action pancreas makes digestive enzymes Parts of our digestive system

11 Science Differentiation in action liver makes bile which helps to break down fats Parts of our digestive system

12 Science Differentiation in action What is the function of each part? mouth oesophagus stomach pancreas small intestine large intestine liver

13 Science Differentiation in action Nutrition involves 5 stages. Ingestion Digestion Absorption Assimilation Egestion

14 Science Differentiation in action Teeth break down food into smaller pieces (physical digestion)

15 Science Differentiation in action There are four types of teeth. IncisorsCaninesPremolarsMolars Upper or maxillary teeth Lower or mandibular teeth

16 Science Differentiation in action Incisors Canines Molars Premolars

17 Science Differentiation in action Teeth Incisors Canines Premolars Molars

18 Science Differentiation in action Teeth Incisors – cut food Canines – tear food Premolars – grind food Molars – grind food

19 Science Differentiation in action Review Questions: Label each part. E A B C D G F

20 Science Differentiation in action Enzymes are involved in chemical digestion. What do you think this means? Question to think about Enzymes act here!


Download ppt "Lesson: Digestive System. Science Differentiation in action All living things are made up of cells. Food has to be broken down before it is transported."

Similar presentations


Ads by Google