Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

Science

Chapter 18 Vocabulary

TermDefinition
amino acid building block of protein
carbohydrate nutrient that is usually the body's main source of energy
chemical digestion occurs when enzymes and other chemicals break down large food molecules into smaller ones
chyme liquid product of digestion
digestion mechanical and chemical breakdown of food into small molecules that cells can absorb and use
enzyme a type of protein that regulates nearly all chemical reactions in cells; a type of protein that speeds up chemical reactions in the body without being changed or used up itself
fat nutrient that stores energy, cushions organs, and helps the body absorb vitamins
food group group of foods - such as bread, cereal, rice, and pasta - containing the same type of nutrients
mechanical digestion breakdown of food through chewing, mixing, and churning
mineral inorganic nutrient that regulates many chemical reactions in the body
nutrient substance in foods - proteins, carbohydrates, fats, vitamins, minerals, and water - that provide energy and materials for cell development, growth, and repair
peristalsis waves of muscular contractions that move food through the digestive tract
protein large molecule that contains carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur and is made up of amino acids; used by the body for growth and for replacement and repair of body cells
villi fingerlike projections covering the wall of the small intestine that increase the surface area for food absorption
vitamin water-soluable or fat-soluable organic nutrient needed in small quantities for growth, for preventing some diseases, and for regulating body functions
Created by: jrobertson1
Popular Science sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards