From First Bite to Blood: teacher key

Healthy Eating, grade 12 edition, written for 12th grade and up. Follow food from the first bite to the blood, learn how researchers uncovered vitamins, and see what energy, fibre, protein, vitamins, minerals and water do in the body.

Read the book. Print this page for the key.

Questions and answers

1. What does the liver make?
   • Chyme
   • Bile (answer)
   • Glucose
2. What did Hopkins find when young rats were fed only pure nutrients?
   • They stopped growing until a small amount of milk was added (answer)
   • They grew faster
   • They needed more water
3. Why does the body need a fresh supply of vitamin C each day?
   • It is stored in fat
   • It dissolves in water and is not stored (answer)
   • It is made by bacteria
4. Where does most of the body's calcium sit?
   • In the blood
   • In the muscles
   • In the bones (answer)
5. What are carotenoids?
   • Plant pigments the body can convert to vitamin A (answer)
   • Minerals from soil
   • Juices made by the pancreas
6. What can bind iron so the body cannot use it?
   • Tea (answer)
   • Citrus
   • Beans

Words

• chyme: thick stomach liquid
• bile: fat-digesting juice
• glucose: blood sugar
• carotenoids: plant pigments
• fortified: vitamins added
• collagen: tissue protein