Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.

By signing up, I agree to StudyStack's Terms of Service and Privacy Policy.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Lesson 3+4

Science Test

digestion The process that breaks down complex molecules of food into smaller nutrient molecules
absorption The process by which nutrient molecules pass through the wall of the digestive system into the blood
saliva The fluid released from glands in the mouth that plays an important role in both mechanical and chemical digestion
enzyme A type of protein that speeds up a chemical reaction in a living thing
epiglottis A flap of tissue that seals off the windpipe and prevents food from entering the lungs
mucus A thick, slippery substance produced by the body
peristalsis Waves of smooth muscle contractions that move food through the esophagus toward the stomach
bile A substance produced by the liver that breaks up fat particles
villi Tiny finger-shaped structures that cover the inner surface of the small intestine and provide a large surface area through which digested food is absorbed
Created by: cassie35915