Across
- 4. A mineral found mainly in the hard part of bones, where it is stored.
- 7. One of a pair of organs located in the right and left side of the abdomen. They remove waste products from the blood and produce urine.
- 8. One of the six classes of nutrients that includes sugars, starches, and fibers. They are the main source of energy in the body.
- 10. Organic compounds needed in tiny amounts as a nutrient to regulate body processes.
- 12. Energy-yielding nutrients composed of carbon, hydrogen, oxygen, and nitrogen.
- 14. Light from the sun.
- 15. The liquid part of the blood and lymphatic fluid, which makes up about half of the volume of blood.
- 17. A basic component of food that nourishes the body.
- 18. A unit of food energy.
- 20. Polysaccharides that are the storage form of energy in plants.
Down
- 1. A collective term used to refer to all the monosaccharides and disaccharides.
- 2. The natural agent that stimulates sight and makes things visible.
- 3. The major positive ion found inside cells.
- 5. An essential nutrient, as a trace mineral or vitamin, that is required by an organism in minute amounts.
- 6. An iron-containing protein that helps red blood cells carry oxygen from the lungs to cells throughout the body and carbon dioxide from body tissues back to the lungs for excretion.
- 9. Physically strong and not sick.
- 11. A transparent, odorless, tasteless liquid. A compound of hydrogen and oxygen.
- 13. Of, relating to, or derived from living matter.
- 16. One of the three nutrients used as energy sources by the body along with proteins and carbohydrates.
- 19. Not previously known or used.