Across
- 4. a fibrous substance consisting of polysaccharides, which is the major constituent in the exoskeleton
- 5. monomers of nucleic acid
- 6. a natural or artificial place where water is collected and stored for use
- 9. lack double bonds between the individual carbon atoms and tends to be solid and from animals
- 10. the electronegativity of the atoms will be different.
- 12. the part of the metabolism responsible for breaking complex molecules down into smaller molecules.
- 14. the structure that results in the maximum energy point along the reaction path
- 16. an action that releases heat, causing the temperature of the immediate surroundings to rise
- 18. there is at least one double bond in the fatty acid chain and tends to be liquid from plants
- 20. polysaccharides of glucose that serves as a form of energy storage in animals
Down
- 1. formed from glycerol and three fatty acid groups
- 2. lipid monomer
- 3. a type of lipid that is made up of four interlocked rings of carbon called a steroid, only found in animal cells
- 7. an outer shell electron that is associated with an atom,and that can participate in the formation of a chemical bond if the outer shell is not closed
- 8. an action that absorbs heat and cools the surroundings
- 11. a chemical bond formed between two molecules when the carboxyl group of one molecule reacts with the amino group of the other molecule, releasing a molecule of water
- 13. the part which builds complex molecules from simpler ones
- 15. the amount of heat one gram of a substance must absorb or lose to change its temperature by one degree Celsius.
- 17. a form of unsaturated fat associated with a number of negative health effects
- 19. the electronegativity of the atoms will be equal