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Details

Cardiovascular System
Study Guide
10
Science
7th Grade
03/03/2011

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Cards

Term
What is the main function of the Digestive System?
Definition
To break down food molecules.
Term
What does the Food Guide Pyramid tell us about portions of food?
Definition
It tells us how much of certain things to eat.
Term
Where does our energy come from?
Definition
Broken down food molecules.
Term
What substance in the mouth begins Chemical digestion?
Definition
Saliva
Term
what is digestion?
Definition
The process of breaking donw food molecules into energy.
Term
Why doesn't stomach acid burn a hole in the stomach?
Definition
Because mucus lines the stomach protecting the Stomach lining.
Term
Is liquid absorbed in the small intestine or the large intestine?
Definition
The small intestine.
Term
What is the flap of tissue that seals off the windpipe when you swallow called?
Definition
The Epiglottis
Term
Where does mechanical digestion begin?
Definition
In the mouth.
Term
Heart burn is caused by what?
Definition
Stomach acid seeping into the Esophagus.
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