Digestive System Review
Presentation
•
Science
•
7th Grade
•
Hard
Joseph Anderson
FREE Resource
3 Slides • 9 Questions
1
2
Multiple Choice
The mouth, stomach, and small intestine use
Chemical digestion
Chemical and Physical Digestion
Physical Digestion
Neither
3
CHEMICAL DIGESTION
4
Multiple Choice
Enzymes represent what they of reaction?
physical
chemical
5
Multiple Choice
What substances are used in chemical digestion??
Enzymes, stomach acid, and teeth
Muscles, teeth, and enzymes
Stomach acid, muscles
Enzymes and stomach acid
6
Gases can build up in the small intestine when you digest food. The body needs to get rid of the build-up by farting (flatulence) or burping (belching)
7
Multiple Choice
Flatulence (farts) build up due to
Swallowing big pieces of food
Eating fries
chemical digestion
physical digestion
8
Multiple Choice
What is the correct order of energy conversion in digestion?
chemical, physical, heat
thermal, heat, radiant
chemical, thermal (heat), mechanical
mechanical, chemical, thermal
9
Multiple Choice
What does chemical energy represent?
Food
Sound
Light
Radiant energy
10
Multiple Choice
What is mechanical energy?
movement
heat
the nucleus
food
11
Multiple Choice
How is energy converted during digestion in order for us to walk or run?
Mechanical energy to chemical energy
Electrical to sound energy
Chemical energy to light
Chemical energy to mechanical energy
12
Multiple Choice
As food is digested through the digestive system chemical energy (food) is broken down through chemical reactions such as enzymes and stomach acid. What type of energy would the chemical energy transform into?
Chemical
Physical
Electrical
Heat
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