Across
- 3. Animals cannot make carbohydrates, but they can store this
- 7. Is a polysaccharide found in the shells of insects, crabs and lobsters
- 8. A monosaccharide commonly found in fruit
- 9. An atom with the same number of protons, but different number of neutrons
- 10. Are large molecules too big to pass through the selective plasma membrane of the cell
- 14. A reaction in which simple substances are combined to form complex chemical structures
- 17. Disaccharides are formed by this chemical process
- 19. This is an example of a monosaccharide
- 20. One of the four organic molecules
Down
- 1. The smallest unit of life
- 2. The sum of all chemical reaction that occur within cells
- 4. Are represented by the atomic number of an atom
- 5. Is composed of one glucose plus one galactose
- 6. Share the same chemical formula, but a different structural composition
- 11. Electrons are found in these
- 12. These are made up of sugar units
- 13. A hormone involved with diabetes
- 15. A positively charged atom formed by the loss of one or more electrons
- 16. The ability to do work
- 18. A pure substance that cannot be broken down into simpler substances